Rockwell Automation 1785-ENET PLC-5 Ethernet Interface Module Installation Instructions - Manual (Page 29)

PLC-5 Ethernet Interface Module 29
Publication 1785-IN019B-EN-P - January 2007
The IP address specifies the MSG instruction’s destination node. If the destination is:
• a PLC-5/20E, PLC-5/40E, PLC-5/80E, or another 1785-ENET-equipped PLC-5
controller, the destination must be a full IP address.
• an INTERCHANGE client program, type CLIENT in the Destination Node field.
Use ControlLogix Devices for Communication
The Ethernet interface module, series A, revision E or later, with a PLC-5 controller can
communicate over the Ethernet network with ControlLogix devices or through a
ControlLogix Ethernet (1756-ENET) module to other PLC-5 controllers.
To communicate through a 1756-ENET module, you configure the multihop feature of a
MSG instruction from the Ethernet PLC-5 controller (or controller with 1785-ENET
module) to the target device. To do this, you need RSLogix 5 programing software.
For more information, see the MSG instruction in the PLC-5 Programmable Controller
Instruction Set Reference Manual, publication 1785-6.1.
If you want to go through the ControlLogix 1756-ENET module and out the 1756-DHRIO
module to the target device:
• Use RSNetWorx software to configure the 1756-DHRIO module routing table in the
ControlLogix system.
• Specify a Link ID number on channel properties for channel 2/3A of the Ethernet
PLC-5 controller (or PLC-5 controller with a 1785-ENET module).
For information on specifying the path of the MSG instruction, see the documentation for
your programming software.
IMPORTANT
You must set the port number to 3A to access this function.