Rockwell-automation T3408 ICS Regent DC Digital Input Modules Manual do Utilizador descarregar pdf (Página 6)

DC Digital Input Modules

(T3401, 02, and 08)

Industrial Control Services

in the field, the redundant modules are connected so that each

sensor connects to one of the redundant modules. Th

ese

configurations are illustrated in Figure

, showing triple

redundant input modules. Each DC digital input module is

hot replaceable. In triple redundant input configurations, if a

fault occurs on one module, it can be removed and replaced

while the system continues to sense the inputs from the

remaining two input modules.

Figure

. Fault Tolerant Digital Input Configurations.

Field Wiring

Fiel

d wiring terminal blocks on the I/O chassis are used to

connect the field input signals and the common power return

signals to the module. The terminal blocks are located

directly above and below the slot where the module is

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Rockwell-automation T3408 ICS Regent DC Digital Input Modules Manual do Utilizador Página 6