ONICON System-10 MODBUS User Manual
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System-10-MOD Network Interface Installation Guide 05/14 - 0653-10 / 18321
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TABLE OF CONTENTS
1.0 INTRODUCTION ..................................................................................................5
1.1
PURPOSE OF THIS GUIDE .......................................................................5
1.2
TYPICAL SYSTEM-10 BTU METER .........................................................5
1.3 SPECIFICATIONS ......................................................................................5
1.4
NETWORK SIGNAL CONNECTIONS .......................................................6
1.4.1
RS485 ...............................................................................................6
1.4.2
TCP/IP .............................................................................................7
1.4.3 Optional Network Interface with
Isolated Digital Pulse Input (Di3) ...................................................8
1.5
RS485 BAUD RATE, BIASING AND TERMINATION ............................11
1.5.1
Baud
Rate ......................................................................................11
1.5.2 Biasing and Termination...............................................................12
1.6
NETWORK ADDRESSING .......................................................................12
1.6.1 Changing the MAC (Device) Address ...........................................12
1.6.2 Changing the IP Address ..............................................................14
1.6.3 Changing the Gateway Address ....................................................16
2.0
MODBUS MEMORY MAP ..................................................................................19
2.1
MODBUS REGISTER FORMAT AND
NETWORKING
INFORMATION .............................................................19
2.2
MODBUS MEMORY MAP ......................................................................20
2.3
TOTALIZATION, RESETTING TOOLS AND OVER-RANGE
AND
ROLLOVER .....................................................................................26
3.0
NETWORK TROUBLESHOOTING TIPS ...........................................................28
3.1 TROUBLESHOOTING .............................................................................28
APPENDIX
A-1 SYSTEM-10 BTU COMPUTER BOARD
A-2 SYSTEM-10-MOD BTU METER MODBUS RTU RS485 BOARD
A-3 SYSTEM-10-MOD BTU METER MODBUS TCP BOARD
A-4 SYSTEM-10-MOD BTU METER MODBUS TCP/IP AUXILIARY INPUT BOARD