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ELPRO 105U Скачать руководство пользователя страница 69

Appendix A

System Example

man_105_2.9.doc

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69

Appendix A

SYSTEM EXAMPLE

The following example of a system is a comprehensive guide to using some of the features of
the 105 range and design of 105 system.

The example application is a pump station which supplies water from a reservoir to a tank
station. Signals are transferred between the pump station and tank station by radio - the
distance between the two stations is 1.5 km (1 mile), and the radio path is heavily obstructed
by buildings and trees. A control station is located near the pump station, and there is an
existing signal cable between the control station and the pump station.

A 105U-1 module is installed at the pump station (with address 1) and a 105U-2 module is
installed at the tank station (with address 2). Because the signal cable to the control station
does not have enough cores for all of the signals required, the signal cable is used as a RS485
cable and a 105S-3 module is installed at the control station (with address 96). As this
module has an address greater than 95, the 105U-1 at the pump station will communicate to it
via its serial port.

The following diagram represents the system :-

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Содержание 105U

Страница 1: ...Manuals ELPRO Technologies Pty Ltd 9 12 Billabong Street Stafford Q 4053 Australia Tel 61 7 33524533 Fax 61 7 33524577 Email sales elpro com au Web www elprotech com or www elpro com au User Manual 10...

Страница 2: ...odule for your telemetry needs We trust it will give you many years of valuable service ATTENTION Incorrect termination of supply wires may cause internal damage and will void warranty To ensure your...

Страница 3: ...nits there is no responsibility taken for sources of external interference The 105 intelligent communications protocol aims to correct communication errors due to interference and to retransmit the re...

Страница 4: ...2 4 5 Analogue Outputs 105 1 and 105 3 18 2 4 6 Pulse Input 105 1 20 2 4 7 Pulse Inputs 105 2 and 105 4 20 2 4 8 Pulse Output 105 1 21 2 4 9 Pulse Output 105 3 and 105 4 21 2 4 10 RS232 Serial Port 22...

Страница 5: ...n from a Module 50 4 3 5 Modifying and Archiving Configuration Files 50 4 3 6 Print Options 50 4 3 7 Security 50 4 3 8 Using 105S Modules 52 CHAPTER FIVE SPECIFICATIONS 55 CHAPTER SIX TROUBLESHOOTING...

Страница 6: ...battery voltage power status solar panel status and low battery status The unit will monitor the input signals and transmit the signal information by radio or RS485 twisted pair to another 105 module...

Страница 7: ...105U 4 105S 4 Radio Serial Digital Inputs DI 4 4 4 to 16 Digital Outputs DO 4 relay 1 FET 8 FET 4 to 16 FET Analogue Inputs AI 2 4 20mA 6 0 20mA Analogue Outputs AO 2 4 20mA 8 0 20mA Pulse Inputs PI...

Страница 8: ...rect receiving unit Each transmitted message also includes error checking to ensure that no corruption of the data frame has occurred due to noise or interference The 105 module with the correct recei...

Страница 9: ...he 105 module this is to ensure that the surge protection circuits inside the 105 module are effective 2 2 Antenna Installation 105U units only The 105 module will operate reliably over large distance...

Страница 10: ...he antenna cable configuration is determined by adding the antenna gain and the cable loss For example a 3 element Yagi with 15 metres of RG58 has a net gain of 0 5dB 5dB 4 5dB at 450MHz Connections b...

Страница 11: ...gi antennas should be installed with the central beam horizontal and must be pointed exactly in the direction of transmission to benefit from the gain of the antenna The Yagi antennas may be installed...

Страница 12: ...3 element Yagi to compensate for the losses in long lengths of coaxial cable This type of antenna is generally used at a central site with more than one remote site or at a repeater site The collinea...

Страница 13: ...AC Supply The AC supply is connected to the SUP1 and SUP2 terminals as shown below The AC supply should be floating relative to earth AC transformers with grounded earthed secondary windings should no...

Страница 14: ...ds on the I O used Batteries are sized for a number of sunless days with 50 battery capacity remaining as follows No of sunless days Battery capacity AHr x 0 5 Module load A x 1 2 x 24 The Module load...

Страница 15: ...A for recharging a battery For example assume there is a 105U 01 module and a 105S 01 module at the same location The total I O at the location is 3 analogue inputs 6 digital inputs and 4 digital outp...

Страница 16: ...ce will be able to activate the digital input For pulse inputs refer to Section 2 4 6 2 4 2 Digital Outputs 105 1 The 105 1 module provides four normally open voltage free relay contacts rated at AC3...

Страница 17: ...ntelligent watch dog for each output so that a communications failure at a transmitting site causes the output to revert to a known state See Chapter 4 Configuration for further details The output cir...

Страница 18: ...g a 105 module is also recommended To connect an AI on the 105U to an analogue signal from a PLC or DCS output check the internal circuit of the output carefully as different devices use different way...

Страница 19: ...If the external device has single ended grounded inputs then a signal isolator must be used Analogue outputs may also be configured to individually turn off 0 mA if no command message is received to...

Страница 20: ...e four digital inputs DI 1 4 may be configured as pulse inputs The first digital pulse input DI 1 has a maximum rate of 1000 Hz min off time 0 5 ms while DI 2 4 have a maximum rate of 100 Hz min off t...

Страница 21: ...accumulated value will remain accurate even if a period of communications failure has occurred The maximum output rate is 100 Hz If a high speed pulse input is used more than 100 Hz on PI1 of a 105 2...

Страница 22: ...t not used 2 RD Out Transmit Data Serial Data Input High 0 Low 1 3 TD In Receive Data Serial Data Output High 0 Low 1 4 DTR In Data Terminal Ready not used 5 SG Signal Ground 6 DSR Out Data Set Ready...

Страница 23: ...terminals On or down means that the resistor is connected The 105S Modules also have a switchable resistor TERMINATING RESISTOR SWITCH 2 4 12 Connecting 105S Modules to 105U Modules 105S modules conn...

Страница 24: ...roubleshooting The 105 module monitors the power supply and provides status of supply failure and battery low voltage for mapping to one of the module s own outputs or transmitting to a remote output...

Страница 25: ...f radio RX LED flashes if RS485 Receive message RX LED flashes Check message for integrity RX LED flashes Acknowledgement received okay communication complete If message okay transmit it back as ackno...

Страница 26: ...stained for 0 5 second i e 0 5 second debounce The debounce delay is configurable In addition to change of state transmissions each module will transmit the status of each input to its corresponding o...

Страница 27: ...le of an analogue input and how the output follows it is shown below Pulse input change of state Pulse input counts do not use change of state transmissions Instead accumulated pulse input counts are...

Страница 28: ...lse count is the same as the input pulse count The output pulse will be output evenly over the pulse output update time which is configured in the module For example assume that 105 module receives a...

Страница 29: ...configured It is necessary to configure a start up poll to each remote module which controls the module s outputs For further information refer to Chapter 4 Configuration 3 1 5 Communications Failure...

Страница 30: ...lt update time is 10 minutes we recommend that you leave these times as 10 minutes unless particular inputs are very important and deserve a smaller update time It is important that radio paths be rel...

Страница 31: ...e of the modules if the repeater module is installed at a high location for example a tower or mast Repeater modules can have their own I O and act as a normal 105U module in the system 3 2 4 Design f...

Страница 32: ...ur transmissions made during the reset period that is the output will only reset when the communications has been successful four times 3 This method will not work for radio links with repeaters If a...

Страница 33: ...mit and fail to receive alarms provide indication if the radio link has failed to operate 2 Mal operation or operating when not requested This problem occurs when an output is triggered by the wrong r...

Страница 34: ...od of communication to a module Any module with a unit address between 96 and 127 will communicate by RS485 only Other units with a unit address below 95 may communicate by radio or RS485 the unit wil...

Страница 35: ...nicating via radio or serial link default settings may satisfy your needs If so no configuration is required Essentially all inputs at Module A are reflected at the corresponding outputs at Module B A...

Страница 36: ...t Value Update transmissions Every 10 minutes Analogue Change of state sensitivity 3 Reset outputs on Comms fail No Analogue Setpoints if mapped Low Set point 30 High Set point 75 Pulse Output Rate Sc...

Страница 37: ...3 11 This mapping links DI3 on this module to output channel 2 on the module with address 4 and modules 3 and 11 are repeaters User Options may be selected to change the configuration of specific feat...

Страница 38: ...or each unit configure user options for each unit compile the system which generates configuration files for each unit load the configuration files into each unit From the initial screen you can selec...

Страница 39: ...ion double click on the project name on the menu on the left side of the screen Units will appear You can now enter the types of units which will be used in the system If you double click on Units the...

Страница 40: ...105 Radio Serial Telemetry Module User Manual Page 40 January 2004 Deleting a Unit A module can be deleted from the configuration by highlighting the unit and selecting Delete Unit...

Страница 41: ...nfigure I O mappings first and then other options Select Mappings and the following screen appears There are three types of mappings I O mappings which link inputs to outputs Poll mappings which enabl...

Страница 42: ...st addr Even 105 3 Second addr Odd 105 4 First addr Even 105 4 Second addr Odd Output 1 DO 1 DO 1 D P O 1 AO 1 D P O 1 DIO 5 Output 2 DO 2 None D P O 2 AO 2 D P O 2 DIO 6 Output 3 DO 3 None D P O 3 AO...

Страница 43: ...utputs will not be set until it receives update messages from other units in the system To ensure that outputs are set as soon as possible after start up the unit may be configured to Poll any other u...

Страница 44: ...ivate DO1 each time communications to unit 12 is not successful If DO1 has a Reset output time of 10 minutes configured for DO1 then DO1 will reset de activate 10 minutes after the last comms fail to...

Страница 45: ...ime for 105 4 inputs can be up to 5 days If a zero value is entered as an update time then the input will not update at all Changing Multiple Settings You can change the Update Times of several inputs...

Страница 46: ...oscillation the analogue sensitivity should be set to an appropriately large value This ensures that many change messages are not transmitted in too short a time This will result in channel congestion...

Страница 47: ...ion actually divides the input count by 10 each count in the PI1 register is then equivalent to 10 input pulses If PI1 is mapped to a PO then the maximum output pulse rate is 100Hz however each output...

Страница 48: ...rate which it is reflecting For example if the PI update time is 1 minute then the PO update time should also be 1 minute If the PI update time is changed then the PO update time at the remote module...

Страница 49: ...ilities menu Select the Compile button The system will compile the display will show if there are any compile errors or warnings 4 3 3 Programming Configurations to Modules To programme a module Conne...

Страница 50: ...ion files first so you can download the modified configuration details into the 105U C or 105U G 4 3 5 Modifying and Archiving Configuration Files As you build a system configuration it is automatical...

Страница 51: ...messages This is the default setting If a security key has been entered this key is downloaded into each module as part of the configuration download process You can download another configuration at...

Страница 52: ...ation from a module and downloading with a new security key This module will no longer operate with other modules in the system To prevent this unauthorised access to modules must be prevented If you...

Страница 53: ...Example 2 Mapping to a remote 105U In this example a 105S 2 is connected to 105U 1 8 DI1 is mapped to a remote 105U C module The 105U that is connected to the 105S module acts as a repeater a serial t...

Страница 54: ...2004 Example 3 Mapping to another 105S which is connected to a different 105U In this example both 105U modules act as repeaters The first is a serial to radio repeater and the second is a radio to s...

Страница 55: ...ure 20 to 60 degrees C Power Supply Battery supply 11 3 15 0 VDC AC supply 12 24 VAC 50 60 Hz Overvoltage protected DC supply 15 30 VDC Overvoltage and reverse voltage protected Mains supply 110 250 V...

Страница 56: ...m 10W EIRP Expected line of sight range 869 MHz 5 km 500mW EIRP Range may be extended by up to 5 intermediate modules as repeaters Antenna Connector Female coaxial Protected by gas discharge surge arr...

Страница 57: ...Max rate 100Hz min off time 5msec Uses DI1 4 Max rate of DI1 is 1000Hz min off time 0 5msec Max rate of DI2 4 is 100Hz min off time 5msec Pulse Output 105 1 One 105 2 None 105 3 Four 105 4 Four FET ou...

Страница 58: ...Accuracy 0 1 System Parameters Network Configurations Communications via radio or RS485 or network of both Up to 95 radio units with up to 32 serial units off each radio unit Mapping Any input to any...

Страница 59: ...es on failure as described above When the OK LED extinguishes shutdown state is indicated In this state all digital outputs turn OFF and the 24V supply turns off On processor failure or on failure dur...

Страница 60: ...e zeros and ones on the radio This function provides the facility to check VSWR of antennas during installation as well as checking the fade margin of the path between two units see below received sig...

Страница 61: ...to the PC using the same serial cable used for configuration The diagnostics menu is accessed by removing the blue plug from the front of the module and setting all switches to 0 or Open and holding...

Страница 62: ...er k During the diagnostics session if you press Enter or Space while the menu is displayed the module will restart in normal operating mode To re enter diagnostics mode hold the red button for 5 seco...

Страница 63: ...value to the analogue input current is provided below Add together the figures corresponding to each digit in each position to determine the current mA e g displayed value 3456 2 000 0 500 0 039 0 003...

Страница 64: ...bed above in 6 2 2 Tone Reversals This function may be used to check VSWR of antennas and may be used in conjunction with the Signal option described below to check the path between two 105 units Comm...

Страница 65: ...e output OFF For example to set DO1 ON e DO1 FFFF AO1 to AO8 These options allow the user to set analogue outputs to any value To set the output select the corresponding menu item At the prompt type t...

Страница 66: ...ved signal from the remote unit for half a second allowing the received level to be read Under normal radio conditions a reading of 0 indicates a very marginal communication path For reliable communic...

Страница 67: ...le of the screen decodes the message that is it decodes the message to display I O channel and value You can display the register values in Decimal by selecting Dec at the bottom of the screen If you...

Страница 68: ...re available from your Service Agent your source of purchase or from the master distributor in your country upon request and should be noted if you are in any doubt about the operating environment for...

Страница 69: ...y buildings and trees A control station is located near the pump station and there is an existing signal cable between the control station and the pump station A 105U 1 module is installed at the pump...

Страница 70: ...here was no existing electrical panel at this station a small steel enclosure was installed on the light pole A 2 Amp Hour sealed battery was installed to provide power during any mains failure The fl...

Страница 71: ...divide by 10 for 1000 Hz pulse signals AIN1 the level transducer is mapped to AO1 at the 105U 3 The analogue debounce has been set to 2 sec This is because of concern of wave action on the surface of...

Страница 72: ...ping is for future use it will provide a low battery voltage alarm for the tank station The update time for this mapping has been set to the maximum time of 15 minutes to reduce loading of the radio c...

Страница 73: ...ll has been configured for 2 as DO2 at the pump station is controlled from the tank station Note that a comms fail reset time of 11 minutes has been configured for DO2 This means that if a message has...

Страница 74: ...1 minute At 96 control station DO4 Comms fail reset time 3 5 min At the control station DO4 was a system OK signal It was normally active if the signal reset then this represented a system failure At...

Страница 75: ...n_105_2 9 doc Page 75 Appendix B TERMINAL LAYOUTS AI 2 AI 1 24V DI 3 SOL DI 2 DI 1 GND COM DI 4 SUP2 SUP1 BAT DO 1 DO 2 DO 4 DO 3 GND 24V AO 1 AO 2 PO 1 2 3 4 OUTPUTS 1 2 3 4 INPUTS ELPRO xxxx 1 WIRIN...

Страница 76: ...lemetry Module User Manual Page 76 January 2004 AI 2 AI 1 24V DI 3 SOL DI 2 DI 1 GND COM DI 4 SUP2 SUP1 BAT AI 3 AI 4 AI 6 AI 5 GND 24V DOT COM COM OUTPUT 1 2 3 4 INPUTS ELPRO xxxx 2 WIRING DRAWING 10...

Страница 77: ..._105_2 9 doc Page 77 DO 3 SOL DO 2 DO 1 GND COM DO 4 SUP2 SUP1 BAT GND AO 6 AO 7 AO 8 1 2 3 4 OUTPUTS 1 2 3 4 OUTPUTS ELPRO xxxx 3 COM COM DO 5 DO 6 DO 7 DO 8 24V AO 5 24V AO 1 AO 2 AO 3 AO 4 24V WIRI...

Страница 78: ...Manual Page 78 January 2004 OUTPUTS ELPRO xxxx 4 DIO9 DIO10 DIO11 DIO12 DIO8 DIO7 COM DO 4 DO 3 DO 2 DO 1 SOL GND BAT I 0 INPUTS I 0 DIO3 DIO4 DIO5 DIO6 DIO2 DIO1 COM DI 4 DI 3 DI 2 DI 1 GND SUP2 SUP...

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