Beckhoff TwinSAFE logic FB User Manual

Function blocks
Function blocks for TwinSAFE logic components 129
Table 3-105: State information
Value
Description
0
not used
1
RUN
The FB SUB module cyclically subtracts the two analog inputs AnalogIn1 and AnalogIn2. If
no overflow or underflow occurs during the subtraction, the FB SUB module is in the RUN
state.
The outputs assume the following values:
Error=0
AnalogOut = result of the subtraction
2
STOP
The FB SUB module assumes the STOP state if the input FbRun is FALSE.
The outputs assume the following values:
Error=0
AnalogOut=0
3
not used
4
ERROR
If the FB SUB module detects an error when checking the value range of AnalogOut during
subtraction, the FB SUB module switches to the ERROR state and transmits the
corresponding Diag message to the GROUP module.
The outputs assume the following values:
Error=1
AnalogOut=0
5
RESET
The FB ADD module assumes the RESET state if no further error is pending after an error
has occurred and the ErrAck input of the corresponding group is set to TRUE.
The outputs assume the following values:
Error=0
AnalogOut=0

Beckhoff TwinSAFE logic FB Specifications

General

Brand	Beckhoff
Model	TwinSAFE logic FB
Category	Industrial Electrical
Language	English