BECKHOFF EL6900-FB - Manual (Page 70)

Function blocks
68 Function blocks for TwinSAFE logic terminals
3.11.2 Signal description
Table 3-51: FB SR inputs
Name Permitted type Description
Set TwinSAFE-In
FB-Out 1 st input channel. The parameterization determines, whether the
input is linked to a normally closed contact (safe state will be
requested by logical 0) or normally open contact (safe state will be
requested by logical 1).
Reset TwinSAFE-In
FB-Out 2 nd input channel. The parameterization determines, whether the
input is linked to a normally closed contact (safe state will be
requested by logical 0) or normally open contact (safe state will be
requested by logical 1).
Table 3-52: FB SR outputs
Name Permitted type Description
SrOut TwinSAFE-Out
FB-In
Standard-Out 1 st output channel, the safe state corresponds to a logical 0.
3.11.2.1 FB SR input and output types
Table 3-53: FB SR input and output types
Type Description
TwinSAFE-In TwinSAFE input at an EL1904/KL1904
Standard-In Standard PLC variable (output in the PLC %Q*)
FB-Out TwinSAFE FB output
TwinSAFE-Out TwinSAFE output at an EL2904/KL2904
Standard-Out Standard PLC variable (input in the PLC %I*)
FB-In TwinSAFE FB input
3.11.2.2 Diagnostic and status information for FB SR
Table 3-54: Diagnostic information (16-bit value)
Index Description
0-15 always 0
Table 3-55: Status information (8-bit value)
Index Description
0 undefined
2 STOP
3 SAFE
9 SET