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Models 1708 and 1716

Remote Terminal Units

Installation and Operation Manual

025-9209K

Содержание 1708

Страница 1: ...Models 1708 and 1716 Remote Terminal Units Installation and Operation Manual 025 9209K...

Страница 2: ...er No credit shall be allowed for work performed by the buyer Zetron Products or Zetron Accessories which are not defective shall be returned at buyer s expense and testing and handling expense shall...

Страница 3: ...t installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful inter...

Страница 4: ...nal Integrity 14 I O SPECIFICATIONS 14 External Inputs 14 External Outputs 14 OPERATION GENERAL OPERATION 15 ADDRESSING THE RTU 16 CONFIGURATION 17 Accessing the RTU Program Mode 17 MAIN MENU 18 Preke...

Страница 5: ...24 Debounce Time 24 Next Input 24 DIGITAL OUTPUT DEFINITION 25 Latched Mode 25 Momentary Mode 25 Output On 25 Force Output Off 25 Next Output 25 ANALOG INPUT DEFINITION 26 Enable Input 26 Disable Inpu...

Страница 6: ...COL 44 SET UP AND INSTALLATION INSTALLATION 45 Power Connection 45 System Grounding 45 Radio Connection 46 Step 1 Cable Connection 46 Step 2 Carrier Detect and Push to Talk Settings 46 Step 3 Transmit...

Страница 7: ...SCREEN 702 9439F 63 MODEL 1716 REMOTE TERMINAL UNIT SILKSCREEN 702 9440F 64 APPENDIX A COMMUNICATING OVER TWO WIRE BALANCED LINE 600 65 APPENDIX B MODEL 1730 1732 COMMUNICATIONS AND I O TEST PROGRAM 6...

Страница 8: ...Contents 025 9209K 8...

Страница 9: ...roller and the RTUs the user at the central office can control equipment or retrieve information from the remote sites The size of a system is dependent on airtime available and the total transmission...

Страница 10: ...it 9 I O Lines Figure 1 A Typical System with One Controller and Nine RTUs Figure 1 depicts a model system that might be used to monitor and control pump stations This system gives the user PC or stat...

Страница 11: ...d with leased lines M1700 with MODBUS option M1708 1716 with MODBUS option RS232 MODBUS Protocol Figure 2 Generalized MODBUS System CONNECTIONS Main Power Flow Detector Door Open High Water High Tempe...

Страница 12: ...voltage range Many sensing devices output 0 to 5 Vdc However some sensor outputs are 4 to 20 mA current loops or an input may be using a 12 volt power supply The diagram below shows how to convert th...

Страница 13: ...unds RS 232 INTERFACE Baud Rate 4800 Parity None Bits 8 Stop Bits 1 RADIO INTERFACE Audio Output 20 mV to 2 V p p mic level audio 1 k Audio Input 100 mV to 4 V p p 50 k Channel Busy Input Low 0 to 0 7...

Страница 14: ...puts Model 1716 16 inputs Contact closure to ground or 0 5 V or 5 0 V voltage change Logic low 500 or 0 8 Vdc Logic high 2 5 k or 2 0 Vdc Protected to 50 VDC Analog Inputs Model 1708 4 inputs Model 17...

Страница 15: ...it will check to see if the radio channel is busy If the channel is busy the RTU will wait for the channel to clear If the channel is not busy the RTU will transmit its data and wait for a reply from...

Страница 16: ...55 The count is binary 1 1 2 2 3 4 4 8 5 16 6 32 7 64 8 128 Each unit on a system must have a different ID in order to respond Examples 1 2 3 4 5 6 7 8 ON OFF The configuration above would define this...

Страница 17: ...ins on the RTU are different from those of other serial ports found on printers and modems You will need to use the cable provided with the Model 1700 Controller make up your own cable or purchase an...

Страница 18: ...races Simply pressing ENTER will redisplay the current menu If you do not press a key for 30 seconds the RTU will automatically exit the menus You must press the space bar three times to re access Pre...

Страница 19: ...r trunked operation timing PTT is pressed for 15 seconds while looking for a channel If a channel is acquired prior to the 15 seconds this is based on the logic indication on the COR input the RTU wil...

Страница 20: ...needed so they are disabled by default Table 3 RTU Fail Safe Setup Menu Menu Selections Range Factory Settings C ommunication failure enable 0 10 0 disabled Channel U se limits Time period 0 to 30 min...

Страница 21: ...time out interval can be from 1 to 10 minutes 5 minutes is the default During the time out interval any new alarms that may be detected are buffered until the buffer gets full and are sent when the in...

Страница 22: ...next slot Exit This selection will take the user back to the main menu Example Controller Unit 0 RTU 5 RTU 150 If RTU 150 is out of range of Controller Unit 0 but RTU 5 is in range of both Controller...

Страница 23: ...een configured in Slot 2 to recognize and re send all transmissions of 150 to 5 as 10 to 0 This completes the cycle Note Enter the ID of the out of range RTU higher than the largest ID of the in range...

Страница 24: ...every time the input changes state When the input changes the alarm message will indicate the new state high or low Debounce Time Each input has a debounce time Debounce is the amount of time the inp...

Страница 25: ...d on This value 0 255 will cause the output to automatically return to the off position after the time has expired Output On This menu selection allows the user to locally control the outputs This is...

Страница 26: ...put must be enabled Disable Input If the input is disabled its status will still be sent during a poll response but any change in state of the input will not cause the RTU to transmit an alarm High Th...

Страница 27: ...lert Change alert is the percent change of full scale from the last reported value that will cause another report For example if we are measuring feet of water in a 100 foot tank and we wish to know a...

Страница 28: ...ted Outputs Power Up State The analog inputs power up in a 0 volt state The digital outputs power up in a high impedance open collector state Power Off State The analog inputs power off in a 0 volt st...

Страница 29: ...failure alarm at the Controller and a communications failure state at the RTU Push to Talk If Push to Talk fails the radio will either transmit no data or be locked in transmit and block all other tr...

Страница 30: ...controller will stop acknowledging the RTUs and a critical system communications fail status will occur Ground Poor grounding or no common signal ground can cause intermittent communications A power...

Страница 31: ...ADA programs as well as with many PLCs The Model 1700 is compatible with most MODBUS programs that use five digit MODBUS addresses and limit themselves to the functions listed in Table 10 Table 10 Com...

Страница 32: ...e changes in RTU input status that occur between polls It only sees the current input status at the time each poll response is sent Any RTU input changes that occur between polls are lost Report By Ex...

Страница 33: ...application that is compatible with the MODBUS protocol The following list contains some of the major requirements for this master to be compatible with the Model 1700 controller and the Model 1708 1...

Страница 34: ...m will open the menu listed in Table 12 Table 12 1700 Controller MODBUS Menu Menu Selections Range Factory Settings R TU status storage Enable Disable Enabled A utopoll Autopoll interval 0 to 65535 mi...

Страница 35: ...n the Interval item At the Autopoll Interval prompt type in the time in minutes that the 1700 controller must wait in between polls of all the RTUs in the system Press ENTER to return to the Autopoll...

Страница 36: ...nnection between the master and the Model 1700 controller has failed This feature can be enabled or disabled and the timeout period set through the Model 1700 controller RS 232 watchdog menu The defau...

Страница 37: ...lert the system operator if the serial communication link to the master PC is lost CONFIGURING THE MASTER PC OR PLC Each MODBUS software package or PLC is configured differently so we can only give ge...

Страница 38: ...00 controller consists of four digital outputs These are open collector outputs capable of sinking up to 100 mA and dealing with voltages up to 50 Vdc In the MODBUS protocol each I O point is given a...

Страница 39: ...world units is done automatically Here is an example A sensor that measures water flow and outputs a current of 4mA for a flow of 0 gal min and a current of 20mA for a flow of 100 gal min This sensor...

Страница 40: ...mal digits 41012 5634 Accumulated Value middle four decimal digits 41013 0021 Accumulated Value upper four decimal digits 41014 7890 Number of Samples lower four decimal digits 41015 3412 Number of Sa...

Страница 41: ...accumulated value scaled to real world units can be calculated with the formulas presented below An example will follow to help clarify things but first some definitions Values to be calculated are A...

Страница 42: ...than seconds a conversion factor will also have to be included Here is an example We will use the same sensor that we used in our discussion of analog input configuration It measures water flow and ou...

Страница 43: ...42124 42126 5 42051 42053 42054 42056 13 42131 42133 42134 42136 6 42061 42063 42064 42066 14 42141 42143 42144 42146 7 42071 42073 42074 42076 15 42151 42153 42154 42166 8 42081 42083 42084 42086 16...

Страница 44: ...rwood MA 02062 Tel 781 769 8878 Fax 781 769 1990 www intellution com Lookout National Instruments Corporation 11500 North Mopac Expressway Austin TX 78759 Tel 512 794 0100 Fax 512 683 8411 www NI com...

Страница 45: ...it requires less than 150 mA the radio power supply if it provides 10 5 16 Vdc is often used to power the RTU A 12 volt sealed lead acid battery Gel Cell can be used with a 12 volt power supply to pow...

Страница 46: ...he six connections listed above Step 2 Carrier Detect and Push to Talk Settings Verify correct jumper settings for Carrier Detect and Push To Talk PTT based on the radio you are using Carrier Detect J...

Страница 47: ...two jumpers located on the PCB next to the large square IC These jumpers are labeled Test A and Test B With power on putting a jumper on Test A and or Test B will cause the unit to enable Push to Tal...

Страница 48: ...dication on P3 Pin 3 JP4 Push To Talk IN Push to Talk provides a 5 Vdc pull up on release OUT Push to Talk goes to open upon release JP5 Test A 1800 Hz Test Tone See Table 20 for instructions JP6 Test...

Страница 49: ...Input 1 11 Analog Input 1 3 Digital Input 2 12 Analog Input 2 4 Digital Input 3 13 Analog Input 3 5 Digital Input 4 14 Analog Input 4 6 Digital Input 5 15 External Audio In 7 Digital Input 6 16 5 Vdc...

Страница 50: ...1200 Hz Test Tone See Table 20 for instructions JP7 Receive Audio Gain A Low 1x gain on Receive Audio B High 10x gain on Receive Audio JP8 External Audio A External Audio Source Input B No External Au...

Страница 51: ...ound 2 Analog Input 1 11 Analog Output 1 3 Analog Input 2 12 Analog Output 2 4 Analog Input 3 13 Analog Output 3 5 Analog Input 4 14 Analog Output 4 6 Analog Input 5 15 External Audio In 7 Analog Inpu...

Страница 52: ...tput 14 8 Digital Output 7 17 Digital Output 15 9 Digital Output 8 18 Digital Output 16 CONNECTION OF LOCAL RTU TO MODEL 1700 CONTROLLER When a local RTU Model 1708 or Model 1716 is connected to the M...

Страница 53: ...t 1 to module 1 of the I O board This connector P6 supports 4 8 and 16 module optically isolated I O boards The 50 pin connectors provide common ground on the even numbered pins 5 Vdc on pin 49 and ch...

Страница 54: ...Module I O 8 9 Module I O 20 34 Ground 10 Ground 35 Module I O 7 11 Module I O 19 36 Ground 12 Ground 37 Module I O 6 13 Module I O 18 38 Ground 14 Ground 39 Module I O 5 15 Module I O 17 40 Ground 1...

Страница 55: ...internal operations radio audio path control RS 232 serial port and external input output interface operations FUNCTIONAL BLOCK DIAGRAM Microprocessor Input Protector Buffers RS 232 AUX Inputs Transmi...

Страница 56: ...025 9209K 56...

Страница 57: ...ss Talk Pro Comm Kermit or ZCU or you are using a dumb terminal You cannot access the programming mode directly from DOS Verify the baud rate at 4800 8 bit no parity 1 stop bit with echo off Verify th...

Страница 58: ...025 9209K 58 Problem Units will not communicate Recommendations Check address on RTU and Controller Verify setting of DIP switch 7 and 8 on Controller...

Страница 59: ...REPLACEMENT To remove the cover of the unit rotate the cover up and off the cover centering pin at the top To replace the cover position the cover over the centering pin and rotate the cover down to...

Страница 60: ...Repair 025 9209K 60 MODEL 1700 SERIES ENCLOSURE OUTLINE 024 0057B...

Страница 61: ...Repair 025 9209K 61 MODEL 1700 SERIES ENCLOSURE INSTRUCTIONS 024 0056D Sheet 1 of 2...

Страница 62: ...Repair 025 9209K 62 024 0056D Sheet 2 of 2...

Страница 63: ...Repair 025 9209K 63 MODEL 1708 REMOTE TERMINAL UNIT SILKSCREEN 702 9439F...

Страница 64: ...Repair 025 9209K 64 MODEL 1716 REMOTE TERMINAL UNIT SILKSCREEN 702 9440F...

Страница 65: ...xternal Devices R1 560 R2 10K T1 600 ohm Jumper Positions JP3 Pos B PTT to GND JP9 Pos B 600 ohm TX T1 Figure 8 Leased Line Interface Circuit Notes Loss of signal will result from lack of proper groun...

Страница 66: ...fication devices Collisions There is no data flow control provided in the transformer coupling If a busy indication is available it can be connected to the COR input P3 6 of the unit If no busy indica...

Страница 67: ...THE PROGRAM The setup process adds the program M1730 M1732 Comm And I O Test to your Windows Start menu in the Programs Zetron M1730 M1732 Comm And I O Test group Select this menu item to start the te...

Страница 68: ...s field put the address of the Controller or RTU that you want to test The Device field should specify the type of device you are testing The choices include 1730 1732 1708 and 1716 Figure 10 The Opti...

Страница 69: ...logic register values Model 1732 RTU only or hardware information Figure 11 The Poll Menu For menu items that end in an ellipsis additional information such as the module or register number must be en...

Страница 70: ...one of the Set menu items is selected a dialog box always pops up requesting additional information such as the module number output number and output value Figure 14 Entering Output Control Informat...

Страница 71: ...and for clearing counters runtimes and accumulators Figure 16 The Clear Menu On the Model 1730 Controller and Model 1732 RTU you can select one or more counters runtimes or accumulators to clear at th...

Страница 72: ...Appendix B 025 9209K 72...

Страница 73: ...aud Rate The rate of signal transitions for a given unit of time Binary format A format to transfer information generally consisting of ones and zeros This is not intended to be a human readable form...

Страница 74: ...See leased line Device In this manual the word device refers to the Model 1700 Controller the Model 1708 1716 RTU or other similar units Device address The address used by the SCADA program to contac...

Страница 75: ...outputs or accumulators Hysteresis For analog inputs outputs and accumulators a method of preventing multiple exception reports or data log entries as the signal crosses the threshold value The value...

Страница 76: ...e modem on power up or reset to try to detect the presence of the phone modem The modem is expected to answer OK Modem Initialization String This string is used to initialize the modem before a teleph...

Страница 77: ...tween successive polling cycles defined as the time between the end of one autopoll cycle and the start of the next Polled only system A SCADA system in which the master controls all communication The...

Страница 78: ...ction in a Controller that looks for messages from the PC RS 232 Watchdog Timeout A Controller monitors its RS 232 communications with the PC running the SCADA program If the Controller does not see a...

Страница 79: ...value associated with the time factor Serial communications Communication method where data is transferred one bit at a time Slave General SCADA term for the remote site data collection and control de...

Страница 80: ...Glossary 025 9209K 80...

Страница 81: ...annel use limits 21 coil 31 common problems 57 communication failure enable 20 communications failure buffer full 30 configuring 1700 for MODBUS 34 configuring master PC 37 polling interval 37 retries...

Страница 82: ...cifications 14 I O connector board optional 53 input chatter 28 input levels 9 inputs broken connection 28 installation carrier detect jumpers 46 power connections 45 PTT jumpers 47 radio connections...

Страница 83: ...8 output on 25 P polled only system 32 34 power connections 45 power up self test 29 prekey time 18 preset multiple registers 31 single register 31 programming MODBUS 34 37 PTT jumpers 47 push to talk...

Страница 84: ...al outputs 14 physical 13 radio interface 13 RS 232 13 status input 24 store and forward destination address 22 example 22 menu 21 next slot 22 replacement destination address 22 replacement source ad...

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