Function blocks
58 Function blocks for TwinSAFE logic components
Table 3-26: FB MON outputs
TwinSAFE-Out
FB-In
Standard-Out
Local-Out
TRUE:
The discrepancy time monitoring of an input pair, or
one of the feedback loops, has found an error. The
error reset must be carried out via the ERR_ACK input
of the related TwinSAFE group.
FALSE:
No error was found.
TwinSAFE-Out
FB-In
Standard-Out
Local-Out
1st output channel, the safe state corresponds to a
logical 0.
TwinSAFE-Out
FB-In
Standard-Out
Local-Out
2nd output channel, the safe state corresponds to a
logical 0. The safe state is output with a delay, which
corresponds to the parameterized Delay Time.
Table 3-27: Input and output types
TwinSAFE input, e.g. at an EL1904/KL1904
Standard PLC variable (output in the PLC %Q*)
TwinSAFE output, e.g. at an EL2904/KL2904
Standard PLC variable (input in the PLC %I*)
TwinSAFE output at the KL6904 (not available for EL6900)
Table 3-28: Internal identifier of the FB
This description applies to BLG 1.0 (internal version number)
3.5.2.1 Diagnostic and state information for FB MON
Table 3-29: Diagnostic information (16-bit value)
Discrepancy error input group 1
Discrepancy error input group 2
Discrepancy error in Secure input group
EDM monitoring error EDM1
EDM monitoring error EDM2
Discrepancy error input group 1 with activated option "Safe Inputs after Disc Error"
(set in addition to bit 0)
Discrepancy error input group 2 with activated option "Safe Inputs after Disc Error"
(set in addition to bit 1)
Discrepancy error input group Secure with activated option "Safe Inputs after Disc
Error" (set in addition to bit 2)
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