MAN-0024 Training Course Stage One.pdf
Short Description
MAN-0024 Training Course Stage One...
Description
Training Course: Stage One
UNITRON Building Management System
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COPYRIGHT © Cylon Controls Ltd. 1995
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Contents Introduction ....................................................................................................................4 Cylon Controls: Company profile...........................................................................................................5 Registration form...................................................................................................................................7
Section 1 System concept ...........................................................................................5 Communications controllers and universal controllers ..........................................................................6 UCC4 ....................................................................................................................................................6 UC16 .....................................................................................................................................................6 Universal communications controller, UCC4 .........................................................................................7 Universal controller 16 points, UC16.....................................................................................................7 Universal inputs.....................................................................................................................................8 Universal outputs ..................................................................................................................................8
Section 2 Hardware configuration and input jumpers...............................................9 UC controller power and watchdog LED indicators.............................................................................10 UC16 & UC12 universal input selection .............................................................................................11 UC16 & UC12 input/output summary ..................................................................................................11 UC12, UC16 address/baud switch ......................................................................................................12 Universal input jumper selection .........................................................................................................13 UC12 UC16 & UC16DI address/baud switch exercise........................................................................14 UC16 exercise.....................................................................................................................................15
Section 3 UCC4 hardware configuration and LED display......................................16 UCC4 with 1 RS232 port.....................................................................................................................17 UCC4 with 3 RS232 ports ...................................................................................................................17 UCC4 power and watchdog LED indicators ........................................................................................18 UCC4 address and configuration switches .........................................................................................19 UCC4 seven segment display .............................................................................................................20 UCC4 address and configuration switch exercise...............................................................................21 UCC4 exercise ....................................................................................................................................22
Section 4 Other components.....................................................................................23 UCTMDOC1-01
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Reference............................................................................................................................................24 Exercise ..............................................................................................................................................27
Section 5 Subnetworks ..............................................................................................28 UCC4 node with UC16 controllers ......................................................................................................29 UCC4 node with UC12 controllers ......................................................................................................29 UCC4 node with UC16 controllers and UC16DI modules ...................................................................30 UCC4 node with UC16 and UC12 controllers and UC16DI modules ..................................................30 Setting the sub-net 120R terminating resistor .....................................................................................31 Connecting UCC4s to the Arcnet bus .................................................................................................31 2 UCC4 nodes with UC16 controllers..................................................................................................32 3 UCC4 nodes with UC controllers and a supervisory PC ..................................................................32 Subnetwork exercise...........................................................................................................................33
Section 6 Arcnet bus’s active hubs and distances..................................................35 Arcnet configurations ..........................................................................................................................36 Arcnet exercise ...................................................................................................................................41
Section 7 Application of external devices ...............................................................45 Section 8 Cable and installation recommendations ................................................50 Contents..............................................................................................................................................51 Thermistor cable .................................................................................................................................52 Analog and digital input cables ...........................................................................................................53 Analog and digital output cables .........................................................................................................54 UCC4 RS232 cables ...........................................................................................................................55 UC16 service port RS232 cable ..........................................................................................................56 Sub-net RS485 cable ..........................................................................................................................57 Arcnet media .......................................................................................................................................58 Power supply cable .............................................................................................................................59 Safety codes .......................................................................................................................................60
Section 9 Configuration .............................................................................................62 Site Configuration window...................................................................................................................63 System Configuration window.............................................................................................................64 User configuration ...............................................................................................................................65 Site directory structure ........................................................................................................................66 Exercise ..............................................................................................................................................67 UCTMDOC1-01
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Section 10 The Engineering Tool ..............................................................................68 The Engineering Tool..........................................................................................................................69 Introduction to the Engineering Tool ...................................................................................................71 Examples of strategies........................................................................................................................72 Globals exercise..................................................................................................................................75
Section 11 Time schedules........................................................................................76 UC16 time schedule............................................................................................................................77 UCC4 Schedule Planner .....................................................................................................................78 Exercise ..............................................................................................................................................80
Section 12 Alarm text .................................................................................................81 UCC4 alarm text..................................................................................................................................82 Exercise: .............................................................................................................................................84
Section 13 Datalogs ...................................................................................................85 Datalogs ..............................................................................................................................................86 Exercise ..............................................................................................................................................87
Section 14 CCView and CCDraw ...............................................................................88 Reference............................................................................................................................................89 CCDraw exercise ................................................................................................................................90
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Introduction The company profile provides an overview of Cylon Controls. If you have any queries regarding particular aspects of this which may be of help for marketing purposes or for any other reason please ask. To allow us to form a profile of the training delegates, please complete the registration form. This will enable us to gather some relevant information about your own requirements and previous experience.
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Cylon Controls: Company profile Cylon was formed in 1985 by three graduate electronics engineers to apply the latest generation electronics technology to building services and environmental control. Today Cylon is the largest privately owned manufacturer of building control in Europe and an established, substantial OEM supplier. Principal markets include the UK, Ireland, Italy, Germany and France. Cylon is quality assured to ISO 9000-2. Cylon's business focus is the development of innovative building management systems: ensuring the right conditions for work and leisure, improving maintenance, and deploying energy and utility resources appropriately and economically. Cylon secures these objectives through the development and supply of UNITRON, an intelligent control system which draws upon the leading edge of direct digital control, network communications, software and electronics engineering. Cylon systems are specified across all sectors of the building services industry - from intelligent commercial property with integrated HVAC, lighting and life safety, to the small shop or school with, perhaps, just one or two zone heating. In the commercial sector, Unitron projects include the new International Rail Terminal at Waterloo and the prestigious Ludgate development. Cylon's public sector projects include health and education authorities such as Tayside Health Board and the University of East Anglia. Industrial applications range from 'clean' pharmaceuticals, such as A.H. Cox, to aerospace, rail and heavy engineering firms. Unitron is also specified to regional energy suppliers like Northern Electric. This breadth of application is a reflection not just of how 'universal' and flexible Unitron controllers are, but of how usable they are. For example, Cylon has developed fully configurable keypads for non-technical staff, and comprehensive building management supervisors for facilities and estates managers. Additionally, Cylon's support for 'open architectures' mirrors the likely development of building management practices by freely permitting the creation of inter-operable systems, via gateways and servers, and across office systems. Cylon is fully committed to the adoption of 'green' building services methods such as ice storage, chilled ceilings and natural ventilation. Not only is the Unitron system compatible with such techniques, but the company has undertaken a number of successful pioneering projects into green applications, sponsored by EC research initiatives. Cylon's experience in building services controls is under-pinned by an expertise in electronics design that is evident throughout the Unitron range. All products are conceived, developed and documented by an in-house research and development team at its Dublin headquarters. Their experience in advanced electronics design, graphical user interfaces and windows-based expert systems is evident in the many technically advanced features of the Unitron range. Even the smallest Unitron controller benefits from the massive processing power of modern integrated circuits. Multi-layer circuit boards contribute not only to the compact size of Unitron controllers, but to comprehensive CENELEC emissions and immunity ratings across the range. Cylon's own implementation of ARCnet, the process industry standard, results in High Speed Internetwork with a transfer speed of 2.5 Megabits per second from just one VLSI microchip. 32 bit processors handle other Unitron communications. Future compatibility is assured by open communications, and the adoption of proprietary networks which are recognised and enduring standards. UCTMDOC1-01
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In the UK Cylon does not supply or engineer directly, preferring to focus on its twin strengths of control system development and technical support. Instead Cylon has an accredited distributor network consisting only of leading control systems suppliers. Each 'Approved Cylon Systems Integrator' works closely with Cylon, and in turn is able to offer a comprehensive support package from outline specification and engineering - using automated design, testing and documentation methods through to project management, training and postinstallation support.
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Registration form
Name ..........................................................................................Date ..................................... Company ................................................................................................................................. Position ...................................................................................................................................
Brief descriptions of duties/responsibilities ............................................................................. .................................................................................................................................................
Have you any previous Cylon experience, including CC200/2100?
Yes
No
Have you worked with any other building management system?
Yes
No
If yes, give some brief details: ................................................................................................... ................................................................................................................................................. .................................................................................................................................................
Are you familiar with Microsoft Windows?
Have you attended any other Cylon training course?
Yes
No
Yes
No
If yes, give details .................................................................................................................... ................................................................................................................................................. .................................................................................................................................................
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Section 1 System concept
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Communications controllers and universal controllers
The UNITRON network is made up of two basic components: • the UCC4 • the UC16.
UCC4 This compact communications controller co-ordinates all communication functions on its own subnetwork of up to 32 controllers. In addition, the UCC4, when fitted with an Arcnet card, can interface with other subnetworks over UNITRON's high speed internetwork, allowing larger integrated systems to be assembled. The UCC4 has the facility, via its RS232 ports, to be connected to supervisory PCs, printers, modems etc.
UC16 These are powerful, fully programmable controllers. They work as a type of intelligent input/output board with 8 inputs and 8 outputs. The UC16 has the capacity to act as an integral part of a subnetwork or else as a stand-alone controller. This modular approach gives great flexibility and reduces installation and maintenance costs.
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Universal communications controller, UCC4 •
Subnetwork provides communication for up to 32 universal controllers
•
1 or 3 RS232 ports
•
Optional Arcnet card permits high level network capability
•
Keypads available for full site interrogation
•
DIN rail mounted
•
24 Volt AC supply
Universal controller 16 points, UC16 •
Designed to operate building services
•
Fully programmable
•
8 universal inputs and 8 universal outputs
•
Rapid scan speed – less than 1 second
•
Local PC port
•
DIN rail mounted
•
24 Volt AC supply
•
Stand-alone capability
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Universal inputs Jumper settings on each input select the sensor type. Analog • Active voltage 0 -10 Volts •
Passive detectors (800 ohms - 5 kohms)
•
Active current input (0 - 20 mA)
Digital • Volt free contact Pulse • Up to 12 Hz
Universal outputs •
0 - 10 Volt DC at 10 mA
•
For digital outputs a relay pack (RP4 or RP8) is required.
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Section 2 Hardware configuration and input jumpers
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UC controller power and watchdog LED indicators
Red LED status
Indicating power to unit
ON
Power is applied to UC controller
OFF
No power
Green LED status
Indicating status of UC controller
ON
Opening correctly but not communicating on RS485
OFF
Serious fault
Pulses once per second
Operating correctly and communicating on RS485
Pulses rapidly
No strategy or setup module sent OR corrupt
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UC16 & UC12 universal input selection
UC16 & UC12 input/output summary Controller Type UC16 PG
INPUTS Analog, Digital Digital, Pulse 8
OUTPUTS Universal Triac 0-10Vdc @ 24Vac @ 10mA 500mA 8
UC16 IP
8
8
UC12 FC
4
4
4
UC12 VAV
4
2
6
UC 8
4
As required
As required
Note: The UC8 has 4 outputs configured in one of 5 output options giving every combination of 0-10V/Triac outputs.
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UC12, UC16 address/baud switch
Bits 1 - 6 set the controllers address Bits 7 & 8 set the controllers baud rate
NOTE: Each controller requires its own unique address on the RS485 network starting at one and incrementing by one. All devices on the same network must be set to the same baud rate.
All address settings are shown in the UC16 Hardware Manual, Appendix A. All baud rate settings are shown in the UC16 Hardware Manual, page 6. The example shown above is controller number 1 and the baud rate is 9600.
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Universal input jumper selection
Jumper settings:
Jumper in
Jumper out
Indicate the proper jumper positions for the following inputs:
1. Analog active voltage input, 0 - 10V dc.
2. Analog active current input, 0 - 20 mA.
3. Analog passive input, Ohms.
4. Digital Volt free contact input.
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UC12 UC16 & UC16DI address/baud switch exercise
Address = 17 Baud rate = 38,400
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Address = 32 Baud rate = 9,600
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UC16 exercise 1. Supply voltage for a UC16 is: (tick the correct answer) 240 Volts AC
24 Volts AC
18 Volts DC
2. Which of the following statements are true? •
A UC16PG has 8 universal inputs and 8 universal outputs. True
•
A UC16IP has 8 universal inputs and 8 digital inputs.
•
A UC16 controller stand alone requires either a keypad or
False True
real time clock module to maintain time.
True
False
•
A UC16 can be fitted with an Arcnet board.
True
False
•
A UC12 can be fitted with a keypad and real time clock.
True
False
• The UC16 has either a RS232 port or a RS485 port.
True
False
• The UC16 has both a RS232 port and a RS485 port.
True
False
• A UC16s RS485 port is disabled if a keypad is fitted.
True
False
True
False
False
4. Which of the following are true?
• The UC16's RS485 port is disabled if a PC is connected to its RS232 port.
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Section 3 UCC4 hardware configuration and LED display
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UCC4 with 1 RS232 port
UCC4 with 3 RS232 ports
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UCC4 power and watchdog LED indicators
Red LED status
Indicating power to unit
ON
Power is applied to UCC4 controller
OFF
No power
Green LED status
Indicating status of UC controller
ON
Opening correctly with valid setup
OFF
Serious fault
Flashes momentarily
A valid packed received from PC
Pulses rapidly
No setup sent OR corrupt
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UCC4 address and configuration switches
•
Switch 1 (SW1) is the 8 bit address switch. Each UCC4 has its own unique address. Appendix 1 of the UCC4 Hardware Manual illustrates all 255 addresses available.
•
Switch 2 (SW2) is the configuration switch, used to configure RS232 port 1.
•
Bits 1 & 2 select the RS232 baud rate.
•
Bits 3 & 4 select the RS485 (sub-net) baud rate.
•
Bits 5 & 6 select the type of peripheral device which is connected to port 1: computer, modem, printer, or none.
A full explanation of configuration switch settings is found on page 11 of the UCC4 Hardware Manual. NOTE 1: RS232 ports 2 and 3 are configured through software. NOTE 2: The address and configuration switches are only read by the controller on power up.
In the above example the address is 3, RS232 baud is 9600, sub-net baud is 9600 and the UCC4 is connected to a modem.
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UCC4 seven segment display
Character displayed Meaning C
CLASH Arcnet is running but another node has this address.
E
EMPTY Arcnet board is present but the network is not connected or Arcnet network up but no other nodes detected.
O
NONE No Arcnet board is present.
F
FULL All 255 Addresses utilised and the Arcnet is full.
A
ARCNET Arcnet network is up and running .
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UCC4 address and configuration switch exercise Assume 1 port UCC4
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UCC4 exercise 1. What can we tell about the Arcnet status when the 7 segment display on the UCC4 is showing: (A).
O
ANSWER:______________
(B).
E
ANSWER:______________
(C).
C
ANSWER:______________
2. When the red LED on a UCC4 is off what does this tell us? ANSWER:_________________________________________________________
3. When the green LED on a UCC4 is pulsing rapidly, what do we know about the controller? ANSWER:_________________________________________________________
4. When the green LED flashes momentarily, what does this mean? ANSWER:_________________________________________________________
5. True or false? A UCC4 requires to be powered down and up again after a change has been made to either its address switch or configuration switch.
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True
False
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Section 4 Other components
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Reference Refer to the following datasheets: • DI • Accessories
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UC16 R/L2 RAISE/LOWER RELAY MODULE DATASHEET MECHANICAL Size:Enclosure :Mounting:Connectors:-
130(w) x 120(l) x 45mm(h) Flame retardant injection moulded plastic. DIN rail Inputs : Outputs : Power : Quick Connector : 340g
Weight:-
Rising clamp screw terminals Rising clamp screw terminals Rising clamp Plug-in screw terminals 10 way DIL
LABEL Writing Pad:Indicators:-
2 Pads allow information about each of the Relay outputs to be recorded. Accepts biro or felt tip pen. 2 green lights and 2 yellow lights.
ELECTRICAL Supply Voltage:Power rating:Indicator:-
24Vac +/- 20% 4VA Red light is on when power is supplied to the relay module.
4 RELAY CONTACTS 10A @ 250Vac or 10A @ 30Vdc for a non-inductive load. 2 INPUTS Current :Voltage:Return:-
10mA @ 10Vdc each input 0 to 10Vdc input only. The Return wire is common to all inputs and connects to the G0 wire of the power supply.
FEATURES • • • •
Quick Connect via a 10 way Ribbon Cable (Part No.CC12/CAB, Nominal Length 250mm.) to UC16PG. Four links under the terminal cover allow mode selection for each pair of relays. Any Combination Of Raise/Lower or Binary Mode outputs possible, e.g. 1 R/L and 1 Binary Mode output. 1 UC16 analog output and 1 Binary Mode output is equivalent to 2 UC16 digital outputs and 2 normal relays.
BINARY MODE
Link Position:
Links 1 and 2
BINARY MODE TABLE: Input Voltage (Volts) Don’t Care 0V 4V 7V 10V
Red LED(24Vac supply) off on on on on
Relay B off off off on on
Relay A off off on on off
Green LED off off off on on
Yellow LED off off on on off
• Binary mode converts one UC16 analog output to two digital volt-free outputs. Because of the high switching speed it is possible to skip over states. e.g. It can go from 4V to 10V without activating the 7V state.
Due to Cylon’s policy of continuous improvements, these specifications may be upgraded without notice
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RAISE/LOWER MODE
Link Position:
Links 1and 2
Interlock Wiring for Raise/Lower Mode • In Raise/Lower mode, the interlock wiring shown will only allow one motor to be connected to mains for all input voltages. RAISE/LOWER TABLE Input Voltage (Volts) Don’t Care 0V 4V or 5V 7V or 10V
Red LED (24Vac supply) off on on on
Relay B
Relay A
off off off on
off off on on
Green LED (+ direction) off off off on
Yellow LED (- direction) off on off off
Contact Status Lower output powered Lower output powered No power output to valve Raise output powered
Due to Cylon’s policy of continuous improvements, these specifications may be upgraded without notice
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Exercise Q. Which of the following are true? •
A UC16 DI digital input module has 32 digital inputs.
True
False
•
A UC16 DI can hold a control strategy.
True
False
•
A UC16 keypad can interrogate controllers on its own sub-net.
True
False
•
A UCC4 keypad can interrogate any controller across the Arcnet.
True
False
•
A UC16 R/L 4 provides 4 digital outputs.
True
False
•
The hand off auto module can only be internally fitted to a UC16.
True
False
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Section 5 Subnetworks
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UCC4 node with UC16 controllers
Up to 8 UC16 controllers [nodes 1-8] 128 I/O points maximum
•
•
•
•
•
•
•
•
UCC4 node with UC12 controllers
Up to 63 UC12 controllers [nodes 1-63] 756 I/O points maximum Reference: System Architecture Datasheet
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UCC4 node with UC16 controllers and UC16DI modules
Up to 8 UC16 controllers [nodes 1-8] with UC16DI digital input multiplexers [nodes 9-16] 256 I/O points maximum
•
•
•
•
•
•
•
•
UCC4 node with UC16 and UC12 controllers and UC16DI modules
Up to 8 UC16 controllers [nodes 1-8] with UC16DI digital input multiplexers [nodes 9-16] and 47 UC12 controllers [nodes 17-63] 820 I/O points maximum
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Setting the sub-net 120R terminating resistor
IN
OUT
IN
Refer to UC16 Hardware Manual, page 13, for maximum distances
Connecting UCC4s to the Arcnet bus
Refer to UCC4 Hardware Manual, pages 15 to 20.
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2 UCC4 nodes with UC16 controllers
•
•
•
•
•
•
•
•
3 UCC4 nodes with UC controllers and a supervisory PC
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Subnetwork exercise 1. What is the maximum number of UC16 controllers on one RS485 network? (tick the correct answer) 32
255
16
8
2. Do Cylon have any illegal or non-usable address numbers? Yes
No
3. Sketch a network with the following controllers all mounted in one control panel. 3 6 1
UC16DI UC16PG UC16IP
Show all controller address numbers. Is there any further equipment or hardware required?
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4. Sketch a network with the following controllers. Panel A 7 UC16PG 4 UC16DI
Panel B 3 UC16PG 1 UC16DI
Panel C 1 UC16PG 1 UC16DI
Note distance between Panel A and B is 200 meters and Panel B and C is 290 meters.
5. The network for example 4 now has 5 floors of VAV terminals installed, each floor requires 48 UC12VAV controllers. What is the best method of incorporating this and what other equipment is required? ............................................................................................................................................ ............................................................................................................................................ ............................................................................................................................................
6. The RS485 network maximum speed is: (tick correct answer) 19K2 Baud
1 Megabits/sec.
9K6 Baud
2.5 Megabits/sec.
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38K4 Baud
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Section 6 Arcnet bus’s active hubs and distances
36
Arcnet configurations To connect 2 UCC4s together with Arcnet:
•
•
•
•
•
•
•
•
•
•
To connect up to 8UCC4s together with Arcnet:
Q. Can I connect more than 8 to this network cable? A. No. A Coax Active Hub should be used to add extra UCC4s.
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To connect more than 8 UCC4s to a network:
Q. There are 6 unused ports on this Hub. Do they need Arcnet terminating resistors? A. No.
•
•
•
•
•
•
•
•
•
•
•
•
Q. Will the network work as normal if the Hub is powered off? A. No. When the Hub is powered off it no longer terminates the line with 93 Ohms. If there is a danger of the Hub losing power then an Uninterruptable Power Supply should be used.
•
•
•
•
•
•
•
•
•
•
•
•
To connect UCC4s which are greater than 1000ft(330M) apart :
Q1. Can You put more UCC4s on these cables without affecting the maximum distance? A1. Yes up to 8 UCC4s on each cable. Q2. Is the Hub counted as a node on the network? A2. No. UCTMDOC1-01
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To connect UCC4s which are greater than 660m apart:
Q. If you connect a UCC4 to line #2 do you still get 660m between Hubs? A. No. If you connect a UCC4 to line#2 then the maximum distance reduces to 330m between the two Hubs.
To connect up to 8 UCC4s on a line with 2 Hubs:
Q1. Do the Hubs terminate both ends of the line with 93R? A1. Yes. Q2. In general, what is the minimum length of RG62 cable I can use between UCC4s? A2. 1m is the minimum length and CYLON sell this as a standard item off-the-shelf.
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How does the Hub work?
Any data appearing on a port is sent out, buffered, on the other 7 ports.
•
•
•
•
•
•
•
•
•
•
Q. Can I connect a Hub to the middle of a cable:
A. No. This line now has 3x93R across the wires. A solution is shown below:
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Q. Can I connect a long stub at a junction to a line?
A. No, use a hub at the node of the cables. •
•
•
•
•
•
•
•
•
•
•
•
•
•
Q. Can I connect Arcnet in a loop? A. No. The configuration is either Tree or Star or Bus, not Ring.
•
•
•
•
•
•
•
•
Q. What is an Active Link used for?
A. An Active Link can join two Buses together:
Q. What happens if the active Link is powered down? A. The two Buses work separately.
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Arcnet exercise Plan the Arcnet cable layout for the site represented in the diagram on the next page. The first diagram shows the quantity of UCC4s in each location with the distances between these locations indicated by the red lines. The second diagram should be used to chart your solution showing where active hubs have been required. For the purposes of this exercise; try to minimise the required number of active hubs.
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Section 7 Application of external devices
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49 Noise reduction inside the panel
Connect any relay packs, valves, external sensors etc. on a separate star on the 24V side of the transformer to that supplying UC16 controllers. Also if possible, connect any UCC4 communication controllers on another separate star. Where possible keep mains power cables away from sensor, sub-net and Arcnet cables. These measures will greatly reduce noise on the power supplies into the individual controllers.
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Section 8 Cable and installation recommendations for Unitron controllers
51
Contents •
Thermistor cable
•
Analog and digital input cables
•
Analog and digital output cables
•
UCC4 RS232 cables
•
UC16 service port RS232 cable
•
Sub-net RS485 cable
•
Arcnet media
•
Power supply cable
•
Safety codes
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Thermistor cable The resistance of the wire is relevant as the temperature coefficient of the copper wire is approximately 0. 38 % per degree C. For negligible errors these cables are recommended: 2
a) up to 50 meters:
AGW 20, cross section area (csa) 0.6mm , or 3.3 ohms per 100m of conductor.
b) up to 75 meters:
AGW 18, csa 0.9mm , or 2 ohms per 100m of conductor.
c) up to 100 meters:
AGW 16, csa 1.2mm , or 1.5 ohms per 100m of conductor.
2
2
•
two cores in the cable.
•
stranded or solid conductor
•
shielded cable with the shield connected to earth at one point i.e. in the panel close to the controller.
Twisted pair cable is recommended in the following cases: •
when the site has a lot of heavy industrial equipment e.g. large electrical motors.
•
when the cable is in the same ducting with mains (220/240 Vac) cabling. Note: There should always be at least 12 cm separation between mains wiring and UNITRON controller cables unless they are separated by metal ducting in which case a minimum distance of 6 cm is recommended.
•
when the length of the cable is close to the limits specified above in a), b) or c).
Some recommended cables: Belden 8760, 8762 or equivalents.
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Analog and digital input cables Up to 200 meters: AWG 24, csa 0.22mm •
2
Shielded two core cable. The shield is connected to earth at one point in the panel close to the controller.
Recommended cables: Belden 8641, 9501, 9841.
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Analog and digital output cables Up to 200 meters: AWG 24, csa 0.22mm •
Shielded
•
two core.
2
Recommended cables: Belden 8641, 9501, 9841.
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UCC4 RS232 cables 2
Up to 15 meters: AWG 24, csa 0.22mm . •
three core (for no handshaking).
•
shielded.
•
total maximum cable capacitance of 2,500pF (conductor to conductor capacitance plus half the conductor to shield capacitance).
Recommended cables: Belden 9533, 8102 and 9502 (4 cores, one core unused).
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UC16 service port RS232 cable 2
Up to 4 meters: AWG 24, csa 0.22mm . •
four core (one handshake line).
•
shielded if cable is permanently installed.
Recommended cables: Belden 8102, 9502.
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Sub-net RS485 cable 2
Up to 15 meters: AWG 24, csa 0.22mm minimum. •
two cores
•
unique colour for each one
•
shielded
Up to 300 meters: AWG 24, csa 0.22mm2 minimum. •
two core stranded conductors.
•
unique colour per core.
•
shielded.
•
twisted pair.
•
low capacitance.
•
a segment of cable running between two controllers should have the shield connected to earth at one side only. The other end of the shield may be connected to earth via a 10nF, 1KV ceramic plate capacitor to give maximum noise immunity.
Recommended cables: Belden 9501, 8641, 8761.
Up to 1.2Km: AWG 24, csa 0.22mm2. •
two core stranded conductors (for low impedance at high frequencies).
•
unique colour per core.
•
twisted pair.
•
shielded.
•
Polyethylene or Datalene insulated (NOT PVC which gives high capacitance) maximum cable capacitance is 75pF per meter (conductor to conductor capacitance plus half the conductor to shield capacitance).
•
Characteristic impedance between 100 and 150 ohms.
•
a segment of cable running between two controllers should have the shield connected to earth at one side only. The other end of the shield may be connected to earth via a 10nF, 1KV ceramic plate capacitor to give maximum noise immunity.
Recommended cables: Belden 9841, 9182, 9207, 8102 (one pair unused).
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Arcnet media The Unitron UCC4 controller has been designed to be connected directly to low cost RG62 A/U Coax cable using standard 75 ohm BNC connectors and T-adapters. It is possible to use other transmission media if the appropriate interface is used. These are the available transmission media, off-the-shelf, for standard Arcnet: • Arcnet coax cable. • Arcnet fibre optic cable. It is possible to mix all these media in the one network.
Arcnet coax cable Different types of coax cable can be used with Arcnet but the furthest distances between nodes can be achieved with a 90 ohm characteristic impedance cable and 90 ohm terminators. A maximum distance between UCC4 controllers of 4 miles is then achievable using active hubs as repeaters. Up to 305 meters: This distance can be achieved between two UCC4s on a terminated length of cable. Up to eight UCC4s can be placed on this length of cable. A terminator may be replaced with an active hub to extend the network. Up to 610 meters: This distance can only be achieved with a star connection between two active co-axial hubs (that is, no UCC4 controllers are permitted on this length of cable). Recommended cables:
Belden 9269 (RG62A/U)
Arcnet fibre optic Puredata Europe supply cost-effective fibre optic hubs which have two Arcnet co-axial connections and two fibre optic connections. Another hub offered by the same source is a three fibre optic, one coax hub. The distances that can be achieved when using these hubs is dependent on the fibre cable used. 1. 50 Micron cable 7/3.5 = 2.0km max. 2. 62.5 Micron cable 12/4.5 = 2.67km max. 3. 100 Micron cable 16/6.0 = 2.67km max. We recommend the use of 100 Micron cable for use with these hubs. Two fibres are required for a fibre optic link: • One for transmit • One for receive These hubs come with either screw or bayonet fittings. When ordering these hubs, specify ST terminals (bayonet twist and lock). The hubs are mains powered devices.
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Power supply cable One Unitron controller can draw typically 1.2 Amp pulses of current from the secondary of the 24 Vac transformer. The secondary should be fused with a slow blow fuse or circuit breaker, allowing 1Amp per Unitron controller. Ideally, one 24Vac transformer would be used per panel of controllers. This would ensure minimum electrical noise due to the resistance of the wire. Sometimes it is required to power valves and other devices from the same transformer as that powering the Unitron controllers. In this case, it is recommended to use a star connection at the secondary of the transformer so that the Unitron controllers are connected on one leg and the other devices appear on the other leg. The Go or ground wire on the secondary side should be connected to safety earth (green/yellow wire) at one point, preferably close to the transformer. These are the recommended maximum lengths of cable to be used on one leg of a star connection: Cable gauge
Cross section area
No. of controllers
Max. cable length (metres)
1
8
2
4
1
12
2
6
3
2
1
20
2
10
3
6.6
4
5
5
2.5
1
28
2
14
3
9.2
4
7
5
5.6
6
2.8
(mm2) AGW 20
AGW 18
AGW 16
AGW 14
0.6
0.9
1.2
2.0
For example, if AWG 18 cable is being used and 8 controllers are to be powered at a distance of 5 metres from the one transformer, then four star connections would be made to the secondary of the transformer with 2 controllers each. In this case, it would simplify the wiring to use AWG 14 cable. UCTMDOC1-01
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Safety codes Most of the cables recommended above are also available in a Plenum version if this is required by the site safety standards. This type of cable resists flame spread and does not give off toxic fumes even when exposed to direct flame. Although it is more expensive than the normal type, in certain cases this type of cable is exempt from the requirement to run the cable inside metal conduit thus reducing installation costs.
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Section 9 Configuration
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Site Configuration window
Site Description: This the name of the site that you wish to set up. Directory Name: This is the name that will be given to the site directory which is automatically set up in WN3000V4. Network? : As there may be two or more sites set up on the PC this allows you to choose which COM port the site is connected to. Remote Site: If a site is a remote site, accessed via a modem connected into one of the PC's COM ports, then a telephone number is required as well as the identification string of the UCC4 at the other end of the modem link. Number of UCC4s: This is where the number of UCC4s on the site is entered. Edit UCC4 Descriptions: This button brings up another window allowing you to edit the controller names on the site. These names are then used in the database to identify these controllers. Refer to WN3000 Software Manual, pages 26 to 38.
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System Configuration window
System Name: This is the name that will appear on the screen when WN3000V4 is starting up. Networks: This box allows the engineer to assign particular COM ports to networks 1 and 2. Network 2 can be connected to a modem or directly to a controller. Here the COM port speed and the type of controller the PC is connected to is set. Default site: This is the site which WN3000V4 will look at as the default when the software is started up. Minutes idle before Logout: This is time in minutes after which the user will be signed off if the PC is idle. In order to use the system again the user would then have to enter their user name and password. Alarm Scanning Enabled: This allows the PC to scan for alarms from the network. Note: When the "Save" button is pressed WN3000V4 will start up again to implement any changes made. The "Cancel" button will discard any changes.
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User configuration
The User Configuration window is used to set up new users on the system and to change their levels of access to the system and their passwords, user names etc. Access to a particular part of the system is determined by whether the relevant tick box in this window is clicked or not. For example a particular user may have access to CCView but may not be able to change anything from there.
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Site directory structure
Below is a summary of what is held in these directories:
C:\wn3000v4\LAN
This is the site directory set up automatically from the configuration application.
LAN\archive LAN\dbase LAN\drawings LAN\keypad LAN\macros LAN\strategy LAN\system
Archived data from the site (collected by datalogs). The database for the site, with point names etc. CCView drawings. Keypad programs for the site. Excel macros for reports. Control strategies. Information relevant to the site.
C:\wn3000v4\help C:\wn3000v4\macros C:\wn3000v4\system
Help files for WN3000v4. Strategy macros for the Engineering Tool. General WN3000v4 information, settings etc.
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Exercise Set up a site on the PC: The sites name should be "Training Site" and the directory name should be "TRAIN1". The site should be set up on Network 1, what does this tell us about the sites location?. There is one UCC4 and two UC16s on site, the controllers names should be as follows: UCC4 Number 1 = training case (1) UC16 Number 1 = first (1-1) UC16 Number 2 = Keypad (1-2) Network 1 should be on COM 1 with a baud rate at 9600. What settings would have to be made on the hardware?
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Section 10 The Engineering Tool
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The Engineering Tool Page references are to the Unitron Engineer’s Guide. Page reference 12 12 13
Starting the Engineering Tool: Selecting a target - the reason for this The Off-line window and its features The On-line window and its features
18 23 24 29 31 34
Points and point values: Off-line: Defining a hardware point and its parameters On-line: Downloading a hardware point to a controller Sending set-up and reading the point value Reading all I/O points Changing point values Manually overriding hardware point values
39 40 41 43 43 44 49 53 53 54 57 59 62
Strategies: Example of a simple strategy Selecting function modules Editing function modules Marking function modules, for moving, deletion etc. Joining function modules Automatic point selection Manual point selection, when should this be used Saving/opening a strategy Going On-line, logging in to target Wiping memory Downloading a strategy, sending the set-up Testing a strategy Uploading a strategy - when this should be done Editing an uploaded strategy (i.e. a strategy without a drawing) Exercises: Strategies to be done
66
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Naming objects: Naming points, setpoints
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Reference
Globals:
73 74 75 75 76 76 77 77
Local globals: How they operate. Point-to-point. Editing local globals, local global dialog boxes. Global number. Point type. Source controller, source point. Destination controller(s), destination point. Default values, service time.
81 85 88
Wide input/output globals, Arcnet globals: How they operate Editing wide output globals, wide output global dialog boxes. Editing wide input globals, wide input global dialog boxes. Arcnet global numbers.
95 93
Opening global files, _.cmn files. Saving globals, _.cmn files.
96 97
100 102
On-line: Deleting globals Downloading local globals to UCC4. Downloading wide input globals to UCC4. Downloading wide output globals to UCC4. Sending set-up to UCC4. Viewing state of wide globals, testing wide globals. Exercise: set up globals.
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Introduction to the Engineering Tool The Engineering Tool allows us to program Unitron universal controllers to carry out the particular control function required of it. Graphical programming is used to implement these control programs which we call strategies. This means of programming ensures that complicated strategies can be quickly and efficiently implemented. This approach also allows ease of maintenance of the program in the future as a graphical strategy is easy to follow and document.
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Examples of strategies
This simple strategy is used to compare a hardware analog input into the controller with a user defined analog setpoint in order to switch a hardware digital output.
Here the strategy has been altered by the addition of a timer module, this will allow greater control over the output by setting the parameters of this module. To set the modules parameters you must place your mouse pointer over the module and click on the right hand mouse button. Below is the resulting dialog box, in this case that an off delay of 20 seconds has been set for the output.
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Example 1: Space temperature control of AHU heater battery 1. A temperature sensor located within the controlled space shall position a 3 port diverting valve on the AHU battery to maintain the desired space temperature setpoint. Assume full fresh air system, frost thermostat hardwired interlock to fan, fan enabled by BMS software digital setpoint. 2. The control loop will be enabled when the fan is in the "Run" condition, the valve will be set to the full bypass position when the fan is enabled. 3. Save this strategy as EXAMP1.STG.
Example 2: Input calibration 1. On the first UC16 on the sub-net input 1 is a 0-10V signal. Design a small strategy to rescale this input to match the 0-50 DegC settings shown on the dial. 2. Save this strategy as EXAMP2.STG.
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Example 3: Weather compensator Design a weather compensator with a linear characteristic where the flow temperature of a heating circuit is controlled by outside temperature. When the outside temperature is -1 DegC the flow temperature should be 80DegC and when the outside temperature is 20DegC the flow temperature should also be 20DegC. Limit the flow temperature to 20 to 80 DegC.
80 70 60 50 40 30 20 10 0 -1 DegC
20 DegC
Example 4: Weekly duty changeover Two pumps are to be operated under weekly duty changeover. If either should trip during its part of the cycle the other pump will take over.
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Globals exercise Download the completed strategies, Examp1.STG and Examp2.STG, to the relevant controllers and set up a local global which will utilise the result of the Examp2.STG as the setpoint in Examp1.STG. Save this global as Exer1.CMN.
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Section 11 Time schedules
77
UC16 time schedule Refer to UC16 Programming Manual, page 105.
The UC16 time schedule is for use on stand alone controllers and can be adjusted by a keypad or by a PC connected to the UC16. There are two start and stop times available in each time schedule and these can be selected for the entire week or for individual days. In the above case the schedule has been arranged to operate on Mondays only with one start and stop time; 8:30am to 5:30pm. This means that the digital True Output point, 31, will be set during these times.
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UCC4 Schedule Planner Note: In order to edit a UCC4 time schedule, you must first define it in the Engineering Tool.
Opening a UCC4 Time Schedule To use the Schedule Planner you must first select which schedule you wish to edit. Having done this select Time Schedule, this will give the following window:
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Downloading the edited schedule to the UCC4 When the schedule has been downloaded it is automatically saved on the PC. In order to test that the schedule is operating, it can be viewed in the Engineering Tool when on-line.
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Exercise Implement the following simple strategy in the first UC16: Digital output (point 16) will be switched on when either a digital input (point 8) or a UCC4 time schedule (schedule no.1) is enabled. The schedule should be sent to a digital setpoint in the strategy by means of a local global. Save this strategy as "Timeschd.stg" Define schedule no.1 and set up the local global. Set the on-off times for this schedule as Monday to Sunday, 8:00am to 6:20pm, then download this schedule. Test the schedule in the Engineering Tool. What happens if the on-off time for today has already gone? Download times to test this.
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Section 12 Alarm text
82
UCC4 alarm text Refer to the UC16 Programming Manual, page 128 and the Engineer’s Guide, page 129. In order to send Alarm string text to the UCC4 we must use the UCC4 Configuration program as shown below.
This will display the following window:
From here the alarm strings required can be written and downloaded to the UCC4. When the alarm occurs in the UC16 the UCC4 will send these alarm strings to the PC. In order for Alarm scanning to be enabled on the PC it will have to be set up in the WN3000 Configuration.
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The Alarm window that will appear on the PC after an alarm has occurred looks like:
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Exercise: Alter your previously written strategy "Timeschd.stg" by adding an alarm module, this should go into alarm condition when the digital input (point 8) is closed. The Alarm Priority should be 1 and the associated text should read: "Boiler Trip, Plant room A" when the alarm is present and "Boiler Normal, Plant room A" when the alarm has ended.
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Section 13 Datalogs
86
Datalogs Refer to the UC16 Programming Manual, page 122 and the Engineer’s Guide, page 131. From the Datalogs program we can now look at the datalog in the controller in text or graph form by selecting Get a Datalog.
This results in the following window which allows you to choose which datalog you require and how you wish to view it:
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Exercise Download a strategy to the second UC16 which will monitor the room temperature given by the PT1000 sensor connected to input point 1 by means of a datalog with a 2 second sampling period. This datalog should be called "Room Temp DL" Use the datalogs program to view this datalog in text and graph format.
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Section 14 CCView and CCDraw
89
Reference •
CCView, page 61, WN3000 Version 4 Software Manual.
•
CCDraw, page 39, WN3000 Version 4 Software Manual.
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CCDraw exercise 1. Paste the Bitmap provided from Windows Paintbrush into CCDraw. Set up a Dynamic point to display the Room temperature from the strategy on the screen.
2. The strategy in the controller also contains a setpoint, alter the drawing so that the setpoint can be displayed and changed from CCView.
3. The room temperature input to the controller is datalogged, demonstrate how may also be accessed through CCView.
this datalog
4. A door is required on the screen to access a drawing called "Demo1.DRW", this door with a suitable description.
implement
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