Fail-Safe Blocks
Fail-Safe Systems
8-120 A5E00085588-03
8.13.6 F_MAX3_R
Function
This block compares three inputs and then outputs the maximum value at the
output. All the inputs are preset with a value of -3,402823e+38 (largest negative
REAL number), so that even a maximum value can be formed from only two
inputs.
OUT = MAX {IN1, IN2 , IN3}
I/Os
Name Data Type Explanation Default
Inputs:
IN1 F_REAL Input variable 1 -3.402823e+38
IN2 F_REAL Input variable 2 -3.402823e+38
IN3 F_REAL Input variable 3 -3.402823e+38
Output:
OUT F_REAL Maximum value -3.402823e+38
Error Handling
If the operation generates an invalid REAL number the event will be recorded in
the Diagnostic Buffer.
Error Information in Diagnostic Buffer
Error Code (W#16#...) Description
75D9H
Invalid REAL number generated by the operation.
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