ONICON System-10 MODBUS - Manual (Page 3)

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System-10-MOD Network Interface Installation Guide 05/14 - 0653-10 / 18321
Page 3
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