Multiple Gateway Modbus Networks - Pepperl+Fuchs ICDM-RX/MOD Manual

ICDM-RX/MOD User Manual
Overview

1.5. Multiple Gateway Modbus Networks

A multiple gateway Modbus Network is created by combining two or more Modbus slave(s) and master(s) with
two or more ICDM-RX/MODs running the Modbus Router and/or Modbus/TCP firmware applications.
• Typically, at least one chassis will be running the Modbus Router firmware application.
• The Modbus/TCP application can provide connectivity to local or remote serial and Ethernet TCP/IP Raw/
ASCII devices such as barcode scanners, RFID readers, printers, vision systems, and weigh scales.
• All Modbus masters connected to a ICDM-RX/MOD running Modbus Router can communicate to all public
slaves.
The following connectivity can be provided in a Modbus network when using multiple ICDM-RX/MOD chassis
with Modbus Router and Modbus/TCP firmware applications:
Modbus Network Connectivity
Grid
Modbus/TCP Slave
(remote gateway or
slave Modbus/TCP
device)
Local Public Modbus/
RTU Serial Slave
Local Public Modbus/
ASCII Serial Slave
Remote Modbus/RTU
Serial Slave (via remote
gateway)
Slave Remote Modbus/ASCII
Devices Serial Slave (via remote
gateway)
Serial Raw/ASCII
Devices (remote or
local)
Ethernet TCP/IP Raw/
ASCII Devices (remote
or local)
Local Private Modbus/
RTU Serial Slave
Local Private Modbus/
ASCII Serial Slave
Modbus/ Modbus/
Modbus
RTU ASCII
/TCP
Serial Serial
Master
Master Master
X X X
X X X
X X X
X X X
X X X
X X X
X X X
X
X
Masters
Modbus/RTU Modbus/ASCII
Master over Master over
Ethernet TCP/ Ethernet TCP/
IP
X
X
X
X
X
X
X
IP
X
X
X
X
X
X
X
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