Rockwell Automation T7491 ICS Regent+Plus Mixed I/O Modules - Manual (Page 11)

Multiplexed I/O Module (T7491)
P D - 7 0 3 5 M a r - 0 6
11
Table 1. Slot Key Positions.
Module Upper
Connector
Lower
Connector
T7491 4 2
Fault Mode Jumper
The fault mode jumper is located behind the ID switch cover
in the lower left-hand corner of each I/O chassis. The position
of the fault mode jumper determines the module's response to
system level faults. Normally, the fault mode jumper’s
position causes all output modules in the I/O chassis to either
shutdown (turn off all outputs) or to hold (hold the last state)
after a system level failure occurs. An example of a system
level failure is the failure of two processor modules.
The MIU Output Units contain latching output circuits.
When a system level failure occurs, the MIU outputs will
remain in their last state. Configuring the I/O chassis fault
mode jumper for shutdown will not cause the MIU outputs to
turn off when a system level failure occurs.
Configuration
Each Mux I/O module is configured using the W INTERPRET
I/O Configuration Editor. In the editor, you will perform the
steps described below to configure the module.
1) Set the Module Type:
Position the cursor on the module slot you wish to define.
Choose Set Module Type from the Edit Menu and select
T3491, 12x64 Matrix Interface Module from the list.
2) Edit the Module Definition:
Choose Edit Module Definition from the Edit Menu. A
dialog box will open where you can begin to define the
Protocol (Single or Dual), the Baud Rate (19200 or 9600),
and the MIU Processors that will be connected to the Mux
I/O module.
Note: