Function Description; Cpu - Pilz PSS Series Operating Manual

Function Description

CPU

The CPU controls the test pulse outputs, reads the inputs and processes /
stores the user program and variable data. The failsafe section is designed
to be multi-channel, i.e. different CPUs process the user program
independently.
A four-digit display and several LEDs provide information on the status of
the safety system and indicate any errors.
Operating Manual: PSS SB 3006-3 Series
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