Safety Integrated - Industry - Siemens

Ex. No.
11 Process: Channel / module error
(automatic reintegration)
Precondition
The user has set "ACK_NEC = 0" in the safety program.
State
F-module not passivated (1, 2)
Error occurs
F-module passivated (3, 4)
Error removed
F-module reintegrated (5)
358 Functional Example No. AS-FE-I-011-V10-EN
Process sequences
If an error is pending at the F-module (channel or module error),
the F-module is passivated by the F-system. If the error
has been removed and "ACK_NEC = 0", the F-module of the
F-system is automatically reintegrated.
The following figure and table illustrates the process sequence.
Numbers in brackets indicate the state.
Description of status and events F-I/O-module data block / SF-
LED
A: ACK_NEC
B: PASS_OUT
C: QBAD
D: SF-LED
A B C D
1 F-module is not passivated.
Event: error occurs at the F-module.
0 0 0 0
2 F-module has recognized the error.
Event: F-system recognizes the error at the F-module.
0 0 0 1
3 F-system has passivated F-module.
Event: Removing the error at the F-module.
0 1 1 1
4 F-module has recognized that the error has been removed
Event: F-system recognizes that the error at the F-module has been removed.
0 1 1 0
5 F-system has reintegrated the F-module. 0 0 0 0