Rockwell Automation T7446L_H ICS Regent+Plus Relay Output Modules - Manual (Page 6)

Relay Output Modules (T7446L, H)
6
Industrial Control Services
Application
Simplex Configuration
Relay output modules provide a suitable interface to non-
critical output devices. These non-critical devices typically
include status alarms or other field devices that are not used
for primary safety shutdown purposes. Although much of the
circuitry on the relay output module is automatically tested,
some logic circuits and the field-side output switch are simplex
and non-tested. This simplex configuration is illustrated in
Figure 3. For safety-critical outputs requiring fail-safe or
fault tolerant output configurations, Guarded digital output
modules should be used.
Figure 3. Simplex Relay Output Configuration.
Field Wiring
For field wiring details, refer to PD-7901 - I/O Termination
Assembly (ITA).