BECKHOFF EL6900-FB - Manual (Page 76)

Function blocks
74 Function blocks for TwinSAFE logic terminals
3.13.2 Signal description
Table 3-61: FB TOF inputs
Name Permitted type Description
TofIn1 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).
Table 3-62: FB TOF outputs
Name Permitted type Description
TofOut TwinSAFE-Out
FB-In
Standard-Out 1 st output channel, the safe state corresponds to a logical 0.
Table 3-63: FB TOF 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
3.13.2.1 Diagnostic and status information for FB TOF
Table 3-64: Diagnostic information (16-bit value)
Index Description
0-15 always 0
Table 3-65: Status information (8-bit value)
Index Description
0 undefined
1 RUN
2 STOP
3 SAFE
8 DELAY_OUT