Camille Bauer LINAX A325 Operating Instructions Manual page 108

Commissioning and use during operation
108
Signal type:
Type Description
1 Instantaneous value (measured value)
2 Status
3 Counter time/operating time
5 Validity:
The status of an analog or math channel is returned. The value returned by the function is 0 if:
• The "cable open circuit" flag is set
• The "invalid measured value" flag is set
However, the value returned is not 0 if:
• The "fault value" flag is set
• The "underrange" or "overrange" flag is set
• The "fault value" flag is set
• The "no value available" flag is set
• Limit value flags are set
Channel number: analog channel 1 = 1, analog channel 2 = 2, digital channel 1 = 1 etc.
Examples:
DI(2;4) -> the status from digital channel 4
AI(1;1) -> the instantaneous value from analog channel 1
Limit value status:
LMT(limit value number)
The function returns the status of a limit value.
The result is 1 if the limit value is violated.
The result is 0 if:
• The limit value is not violated
• The limit value is not switched on
• Limit value monitoring is switched off (e.g. via control input)
6.7.2 Priority of operators/functions
The formula is processed based on generally applicable mathematical rules on the order of
operations:
• Parenthesis first
• Exponents before multiplication and division
• Multiplication and division before addition and subtraction
• Calculate from left to right
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