Beckhoff TwinSAFE logic FB User Manual

Function blocks
Function blocks for TwinSAFE logic components 201
3.28.2 Signal description
Table 3-171: FB Envelope inputs
Name
Permitted type
Data type
Description
SafeFunction
TwinSAFE-In
FB-Out
BOOL
Input for the safety function.
InValue
TwinSAFE-In
FB-Out
Standard-In
TwinSAFE SC
INT16
INT32
UINT16
UINT32
Position or analog value to be monitored for
deceleration or change in direction of 0 within
an envelope curve.
Table 3-172: FB Envelope outputs
Name
Permitted type
Data type
Description
Error
TwinSAFE-Out
FB-In
Standard-Out
BOOL
Error output (see diagnostic information)
SafeFunction
Out
TwinSAFE-Out
FB-In
Standard-Out
BOOL
Output with the safety function (delayed and
envelope curve-monitored)
Table 3-173: Input and output types
Type
Description
TwinSAFE-In
TwinSAFE input of an EL1904/KL1904, e.g.
Standard-In
Standard PLC variable (output in the PLC %Q*)
FB-Out
TwinSAFE FB output
TwinSAFE-Out
TwinSAFE output of an EL2904/KL2904, e.g.
Standard-Out
Standard PLC variable (input in the PLC %I*)
FB-In
TwinSAFE FB input
TwinSAFE SC
Input of a TwinSAFE connection (TwinSAFE SC technology)
Table 3-174: FB Envelope parameters
Parameter
Description
Target Value
Target window of InValue, symmetrical around 0
Offset
Offset values, which is added to the amount of InValue and then
forms the starting point of the envelope curve as positive and
negative value.
Time after in target (ms)
Time after which the SafeFunctionOut output switched off, if it is
within the TargetValue range
Max Time (ms)
Maximum time, after which the SafeFunctionOut output is switched
off.
Table 3-175: Internal identifier of the FB
Type
Description
FB Envelope
This description applies to BLG 1.0 (internal version number)

Beckhoff TwinSAFE logic FB Specifications

General

Brand	Beckhoff
Model	TwinSAFE logic FB
Category	Industrial Electrical
Language	English