Rockwell Automation T3411 ICS Regent Monitored Digital Input Modules - Manual (Page 11)

Monitored Digital Input Modules (T3411)
P D - 6 0 3 1 M a r - 0 6
11
The field power supply voltage is regulated to 24 Vdc inside
the module. This power is used to source the power to the field
input switches. The return side of the field switches is wired
back to the field power supply return.
Figure 6 shows the wiring connections for a single monitored
input module.
When redundant field sensors are installed, each input
module is wired as shown in Figure 6. In a fault tolerant
configuration the input signals are connected in parallel
across both input modules as shown in Figure 7.