Function blocks
144 Function blocks for TwinSAFE logic components
3.21 The function block LIMIT
3.21.1 Functional description
The FB LIMIT is used to check the AnalogIn input for the values linked to MinValue and MaxValue or the
values entered in the parameters Minimum Value and Maximum Value. The input data types INT16,
INT32, UINT16 and UINT32 are permitted. The In_Limit output is set if the AnalogIn value is within the
Minimum Value and Maximum Value limits. If the value is above the AboveMax limit, it is set below
BelowMin.
Figure 3-88: Function block LIMIT