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Rockwell Automation Publication 1769-UM021G-EN-P - October 2015
Chapter 7
Use I/O Modules with CompactLogix 5370 L1 Controllers
•
The Expansion I/O parameter in the project of the controller must match
the number of local expansion modules that are installed in the system for
the controller to establish connections to the local expansion modules.
•
You must use a 1734-232ASC, firmware revision 4.002 or later, to access
an RS-232 network in your CompactLogix 5370 L1 controller
application.
Distributed I/O Modules over an EtherNet/IP Network
You can include distributed I/O modules over an EtherNet/IP network in your
CompactLogix 5370 L1 control system.
Consider the following when using distributed I/O modules over an
EtherNet/IP network:
•
Each remote EtherNet/IP adapter included in the system must be counted
toward the maximum number of EtherNet/IP nodes of the controller.
For more information on maximum number of EtherNet/IP nodes, see
Nodes on an EtherNet/IP Network on page 125
.
•
The configurable RPI settings vary depending on which distributed I/O
modules are used in the system.
•
To add distributed I/O modules to your CompactLogix 5370 L1 control
system, see
Configure Distributed I/O Modules on an EtherNet/IP
.
IMPORTANT
Field power is required for the 1734-232ASC module. The module
cannot receive adequate power without the application of field power.
