Festo CPX Series Manual page 144

4. Analogue input module CPX-4AE-I
Channel parameters: Lower limit channel x / Upper limit channel x
Comment If the input value is less than the parameterized lower limit or exceeds the
parameterized upper limit, an appropriate error is displayed (providing the
relevant channel parameter "Monitoring channel x – monitoring lower limit" or
"Monitoring channel x – monitoring upper limit" is active).
The upper limit must always be more than the lower limit.
Modifications to the limits must be made in steps of 16 bits.
Permitted limits:
The limits are checked for validity during parameterisation. Invalid pa-
rameterisations are not accepted – the module uses the previous (last valid)
parameterisations.
The permitted values depend on the parameterized data format (see section
4.4.5). If the module parameter "Monitoring parameterisation errors" as well as
the relevant channel parameter "Monitoring parameterisation errors" is set to
"active", the relevant error will be displayed.
Tab. 4/16: Lower and upper limits channel x
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Festo P.BE-CPX-AX-EN en 1107f