Rockwell Automation 1753-IB16XOB8 GuardPLC 16-Digital Inputs and 8-Digital Outputs Installation Instructions - Manual (Page 7)

GuardPLC 16-Digital Inputs and 8-Digital Outputs Module 7
Publication 1753-IN011A-EN-P - October 2005
Wire the Module
The following sections describe how to wire the module.
Ground the Module
You must also provide an acceptable grounding path for each device in your
application. For more information on proper grounding guidelines, refer to the
Industrial Automation Wiring and Grounding Guidelines, publication number
1770-4.1.
The module is functionally grounded through its DIN rail connection. A protective
earth ground connection is required and is provided through a separate grounding
screw, located on the upper left of the housing and marked with the grounding
symbol .
Connections for Safety-Related Communications
Ethernet Switch
The module has two 10/100BaseT, RJ-45 connectors to provide communications via
GuardPLC Ethernet to GuardPLC controllers, and with the programming software.
The connectors are located on the bottom side on the left. The connectors and the
module are connected together by an internal Ethernet switch. The switches are
auto-detect. Either cross-over or straight-through shielded Ethernet cabling can be
used.
Star or line configurations are available. Make sure that a network loop is not
generated. Data packets must only be able to reach a node via a single path.
MAC Address
The Media Access Control (MAC) Address of the module can be found on the label
positioned over both lower RJ-45 connections.
ATTENTION
This product is grounded through the DIN rail to chassis ground.
Use zinc plated yellow-chromate steel DIN rail to assure proper
grounding. The use of other DIN rail materials (e.g. aluminum,
plastic, etc.) that can corrode, oxidize, or are poor conductors,
can result in improper or intermittent grounding.