System overview
3.4 Components
Distributed I/O system
28 System Manual, 09/2019, A5E03576849-AJ
Fail-safe power module The fail-safe power module allows the safety-
related shutdown of digital output modules / fail-
safe digital output modules.
I/O module / fail-safe
I/O module
The I/O module determines the function at the
terminals. The controller detects the current
process state via the connected sensors and
actuators, and triggers the corresponding reac-
tions. I/O modules are divided into the following
module types:
• Digital input (DI, F-DI)
• Digital output (DQ, F-DQ PM, F-DQ PP,
F-RQ)
• Analog input (AI)
• Analog output (AQ)
• Technology module (TM)
• Communication module (CM)
Motor starter/fail-safe
motor starter
The motor starter is a switching and protection
device for 1-phase and 3-phase loads.
The motor starter is available as a direct-on-line
and reversing starter.
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