Owner's manual

Monitored Guarded Output Modules (T3481/81A, 84, and 88/88A)
10 (Issue 2) Industrial Control Services
Fault Tolerant Configuration
For fault tolerant operation, two monitored Guarded output
modules are connected in parallel as shown in Figure 4 . In
this configuration, operation continues even if one module
fails.
In the fault tolerant configuration, a failed module ca n be
removed and replaced without interrupting operation of the
loads.
Figure 4 . Fault Tolerant Configuration.