5-4
IM MW100-01E
5.2 Main Module Specifications
Characters used in expressions:
Up to 120 per channel
For communication input channels only, a maximum of
8 characters can be used per channel. Four arithmetic
operations and calculation constants can be written in
addition to the communication input channel number.
Number of stacks: 35 or fewer per expression
Conditional expression: Other expressions can be nested in conditional expressions.
Conditional expressions can be nested together.
Operators cannot be used to combine conditional
expressions.
MATH span: When displaying waveforms on the Web, set the upper and
lower limit values.
The setting range is –9,999,999 to 99,999,999.
Decimal place setting: 0 to 4
Computation range: A given result during computation must be within ± 3.4 ×
10
38
.
Math output value: Data output by the computation (for binary output)
Data Type Description
–9,999,999-99,999,999 Normal output range
2,147,450,879 (7FFF7FFFh) Plus over
–2,147,385,343 (80018001h) Minus over
–2,147,319,806 (80028002h) Skip
* If the computation fails, the previous value is output.
MATH constants: 60
Precision: Mantissa, 5 digits; exponent, 2 digits
Range: –9.9999E+29 to –1.0000E-30,0,1.0000E-30 to
9.9999E+29
MATH reference channels:
Measurement channel
MATH channels*
Communication input channels
Flag input channels
MATH constant
Program channels
* If an expression refers to its own channel or a channel of a
larger number than its own channel, the data from the previous
MATH interval is used.
Communication input channels: 300
Numerical values in expressions can be substituted using
communication input.
Precision: Mantissa, 5 digits; exponent, 2 digits
Range: –9.9999E+29 to –1.0000E-30,0,1.0000E-30 to
9.9999E+29
Flag input channels: 60
Flag value can be substituted in computational expressions.
Range: 0, 1
Varies according to the operation of the Event/Action function.
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