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BECKHOFF EL6900-FB User Manual

Page 55

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Function blocks

Function blocks for TwinSAFE logic terminals

53

Table 3-37: FB MUTING outputs

Name

Permitted type

Description

Error

TwinSAFE-Out
FB-In
Standard-Out

TRUE:
The discrepancy time monitoring for a 2-channel input group
has detected an error, the muting sequence was violated, or
the maximum muting time exceeded. The error must be
acknowledged via the ERR_ACK input of the corresponding
TwinSAFE group.

FALSE:
No error was found

MutingActive

TwinSAFE-Out
FB-In
Standard-Out

1

st

outlet channel. It indicates the current muting process

through logic 1.

MuteOut

TwinSAFE-Out
FB-In
Standard-Out

1

st

output channel, the safe state corresponds to a logical 0.

MuteDelOut

TwinSAFE-Out
FB-In
Standard-Out

2

nd

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 3-38: FB MUTING 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

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