Rockwell Automation T3485 ICS Regent Isolated Guarded Output Modules - Manual (Page 9)

Isolated Guarded Digital Output Module (T3485)
P D - 6 0 3 4 M a r - 0 6
9
In a fail-safe configuration, removing the module disables all
outputs.
Figure 4. Fail-Safe Configuration.
Fault Tolerant Configuration
For fault tolerant operation, two isolated Guarded output
modules are connected in parallel as shown in Figure 5. In
this configuration, operation continues even if one module
fails.
In the fault tolerant configuration, a failed module can be
removed and replaced without interrupting operation of the
loads.
Figure 5. Fault Tolerant Configuration.