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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

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