GE VersaSafe VersaPoint IC220SDL840 User Manual page 108

A
F-System
iParameter
Consecutive number
Passivation
PROFIsafe
PROFIsafe address
PROFIsafe monitoring
time
A-2
Failsafe system
A failsafe system is a system that remains in the safe state or immediately enters a safe
state when specific failures occur.
Individual safety parameter of a device
See "Consecutive number"
If the safety module (F-I/O device) detects an error, it switches the affected channel or all
channels of the module to the safe state; the channels are then passivated. The detected
errors are indicated at the safe controller.
For a safe input module when the F-System is passivated, instead of the process values
present at the safe inputs, substitute values (0) are provided for the safety program.
For a safe output module when the F-System is passivated, instead of the output values
provided by the safety program, substitute values (0) are transferred to the safe outputs.
Safety-related bus profile based on PROFIBUS DP or PROFINET. It defines the
communication between a safety program and the safe I/O device (F-I/O device) in a safe
system (F-System).
Each safe module has a PROFIsafe address. This address must be set on the safety
module (F-I/O device) via DIP switches and then configured in the configuration tool for the
safe controller used.
Monitoring time for safety-related communication between the safe controller (F-CPU) and
safe I/O device (F-I/O device).
This time is parameterized in the F_WD_Time F-Parameter.
User manual IC220SDL840 - May 2018
GFK-2734