Users Manual - Integrity Instruments
Contents
1. Integrity Instruments P O Box 451 Order Phone 800 450 2001 Pine River Minnesota Fax Phone 218 587 3414 56474 USA Tech Phone 218 587 3120 http www integrityusa com Remote Contact Extender RCE 1 RCE 1E ENCLOSED Integrity Instruments RCE 1 User Manual Introduction The Integrity Instruments RCE 1 allows the user to monitor contact status at one loca tion and send these signals to a remote location The system is bi directional allowing contact status at the remote location to be sent back to the other end Up to 8 inputs at each end can be sent as outputs to the other end The uniqueness is that this is done over a single set of twisted pair wires using rs 485 communications Applications The RCE 1 can be used for a multitude of uses Remote alarm indication and reset Contact control from a remote source Physical status loading doors open pumps running Production operational status Manned operations acknowledgement Remote physical positioning operations Remote access control Physical operations open windows start watering pumps Remote lighting control These are but a few if there is a need for any remote operations the remote contact ex tender is the answer Operation The RCE 1 system consists of a master slave set Power to each unit is supplied from the area it is at When the units are powered a communication protocol is maintained be tween the units Similar to a watch dog2. operation the units send information to each other When an input is sensed at one end this information is sent to the opposite end and a corresponding output is activated at the other end If communication is lost all outputs at both ends are de activated The communications between the units is done via rs 485 Normal baud rate is 115 200K The rs 485 is capable of 4 000 foot distances Using repeaters this can be increased al most indefinitely up to 8 inputs up to 8 outputs rs 485 twisted pair up to 8 inputs OG Control Control DOO up to 8 outputs RS 485 Cabling The RCE 1 is designed to operate in a Multi Drop RS 485 LAN configuration In a half duplex mullti drop environment all RS 485 nodes share the same data lines A single pair of data lines act as both Transmit and Receive wires Data lines A B are the only wires required between RS 485 nodes All RS 485 nodes need not share the same V and GND Integrity Instruments RCE 1 User Manual Cabling Notes 1 Gnd and Shid are connected internally within the RCE 1 2 Cable termination is important for long distance and high speed applications 3 Suggested cable 24 awg stranded twisted pair with shield for cable runs in excess of 200 feet See also Belden cable 9841 and 9463 4 The end units A and B should be terminated The RCE 1 has built in termination in the unit Master RCE 1 DC power 7 5 24 Vdc Power supply ground Slave RCE 1 t
3. Output 15 Port 1 bit 1 PIC PORTB 1 Output lt Input 16 Port 1 bit 2 PIC PORTB 2 Input gt Output 17 Port 1 bit 3 PIC PORTB 3 Output lt Input 18 Port 1 bit 4 PIC PORTB 4 Input gt gt Output 19 Port 1 bit 5 PIC PORTB 5 Output lt Input 20 Port 1 bit 6 PIC PORTB 6 Input gt Output 21 Port 1 bit 7 PIC PORTB 7 Output lt Input 22 DO NOT USE DO NOT USE DO NOT USE 23 No Connection N A N A 24 5Vdc N A N A 25 GND N A N A DIP Switch Settings Master control 4 Master idle program ge Integrity Instruments RCE 1 User Manual Operation characteristics Firmware version V2 5 Power on default OFF Watchdog If no communications within 1 second all outputs will be turned off Communication protocol Master sends slave responds Addressing Master unit has odd numbered address Slave unit has even numbered address Initiation Dip switch position 1 on master must be on to enable CPU clock 14 7456 Mhz Update speed 10 milliseconds at 115 200 baud rate 11 5 milliseconds at 57 600 baud rate 18 4 milliseconds at 19 200 baud rate Master unit Address 01 Factory default Even numbered bits are inputs Odd numbered bits are outputs Async destination address 02 Slave
4. subject to adverse operating conditions fall beyond the realm of defective workmanship and are not convered by this warranty Copyright 2000 2003 Integrity Instruments All trademarks and or registered trademarks are the property of their respective owners
5. aster S slave to master S Slave responds Sxxyy Slave current inputs xx Port s yy Port 2 Master reaction Master updates with new Port 1 and Port 2 values from slave 0001Z 1 Z Reset CPU X Command error response EEPROM Map Address Description 0x00 MASTER Module Address RS 485 address factory default 0x01 0x01 MASTER Async Destination Address or slave address factory default 0x02 0x00 SLAVE Module Address RS 485 address factory default 0x02 0x01 SLAVE Async Destination Address or slave address N A Integrity Instruments RCE 1 User Manual Digital Input Output parameters Characteristic Value Digital I O Current I O line source amp sink 25 ma Total current PORT1 200 ma Total current PORT2 200 ma Digital I O Voltage Levels Input Off 0 OV 0 8V Input On 1 2 0V 5 0V Output Off 0 0 6V max Output On 1 4 3V min Digital I O Levels Master or Slave Input Lo Corresponding Master or Slave Output Lo Master or Slave Input Hi Corresponding Master or Slave Output Hi NOTES WARRANTY Integrity Instruments warranties all products against defective workmanship and components for the life of the unit Integrity Instruments agrees to repair or replace at it s sole discretion a defective product if returned to Integrity Instruments with proof of purchase Products that have been mis used improperly applied or
6. erminal block terminal block Physical The inputs and outputs are available through a female DB25 connector The I O lines are 5vdc operation When 5vdc is sensed at an input line the corresponding output line goes high to 5vdc Voltage is present at the DB25 connector for external use This connector mates to our EXP TRK or EXP STA module allowing industry standard I O modules to be used Our DB25TSM unit is also available for easy terminal strip connections to the DB25 connector Performance Characteristics DB25 Connector 13 12 11 10 9 8 7 6 5 4 3 2 1 DB25 Connector 25 24 23 22 21 20 19 18 17 16 15 14 Female front view Male rear view Integrity Instruments RCE 1 User Manual DB 25 connector inputs and outputs DB25 Description Master Slave 1 Port 2 bit 0 PIC PORTD 0 Input gt Output 2 Port 2 bit 1 PIC PORTD 1 Output lt Input 3 Port 2 bit 2 PIC PORTD 2 Input gt Output 4 Port 2 bit 3 PIC PORTD 3 Output lt Input 5 Port 2 bit 4 PIC PORTD 4 Input Output 6 Port 2 bit 5 PIC PORTD 5 Output lt Input 7 Port 2 bit 6 PIC PORTD 6 Input gt Output 8 Port 2 bit 7 PIC PORTD 7 Output lt Input 9 DO NOT USE DO NOT USE DO NOT USE 10 No Connection N A N A 11 V Unregulated Out N A N A 12 5Vdc N A N A 13 GND N A N A 14 Port 1 bit O PIC PORTB 0 Input
7. ty Instruments I O module commands and responses NOTE All numeric data is represent as ASCII Hexadecimal integers value x y in the table If a module receives an illegal or improperly formatted command Error Response is sent All ASCII characters are CASE SENSITIVE use all capital letters For field programming and troubleshooting contact Integrity Instruments mmm DIP switch 1 on master must be set off to program or monitor unit mmmmm You will have to have a rs 232 to rs 485 converter like our 485 25E to communicate with the unit Integrity Instruments RCE 1 User Manual Example Commands The following table interface NOTE e All numeric data is represent as ASCII Hexadecimal integers e Example Host Address 0x00 and Module Address 0x01 Master e The symbol 41 illustrates actual command and response data for an RS 485 equates to a carriage return decimal 13 hex 0x0D Command Response Description Sent by Host Sent by I O Module 0001V Vxy Firmware version x y 0001K 1 Kxx Get receive error count xx current count 0001J 1 J Clear receive error count 000 1Wyyxx Ww Write EEPROM yy address xx value 0001Ryy Rxx Read EEPROM yy address in command xx value in reponse S master to slave S Master sends Sxxyy Master current inputs xx Port 1 yy Port 2 Slave reaction Slave updates with new Port 1 and Port 2 values from m
8. unit Address 02 Factory default Even numbered bits are outputs Odd numbered bits are inputs Async destination address N A LED Operation Assume the system is wired and power is applied to both the Master and Slave units Idle master DIP switch position 1 OFF no communication Master Green blinking Slave Green blinking Running master DIP switch position 1 ON communication good Master Green Red Integrity Instruments RCE 1 User Manual Communications The Integrity Instruments RCE 1 modules use rs 485 as the communications interface The interface uses simple ASCII commands A carriage return decimal code 13 or Hex code 0x0D marks the end of a data packet RS 485 Interface RS 485 operates Half Duplex Each module node on the bus has a unique Address 1 to 254 0x01 0xFE hex We use the latest Linear Technologies RS 485 bus drivers LTC1487 Address 0 0x00 hex is reserved for host PC Address 255 0xFF hex is reserved for broadcast address RS 485 Packet Format Destination Address Source Address Command Response CR xx OK ASCII carriage return 13 0x0D hex x ASCII Hexadecimal Digit Address 0x00 Reserved Address 0x01 0xFE I O Module Address Address 0xFF Reserved Commands and Responses The following table illustrates the Integri
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