Yokogawa Standalone MW100 - Manual (Page 82)

1-68
IM MW100-01E
Handling Units in Computations
In computations, computed values (measured and computed data) are handled as
numbers without units. Also, they are unrelated to the math channel units.
Example:
Expression = 001 + 002 + K01
001 (measurement ch 1) = 20 mV, 002 (measurement ch 2) = 30 V, K01 (math constant)
= 10
Given the above, the computed result is 60.
Alarm Level
You can implement alarm actions based on the computed data. Four levels can be set
per channel. The alarm types are upper limit, lower limit, delay upper limit, and delay
lower limit. There is no hysteresis function. There is no hysteresis function.
Pulse Integration (TLOG.PSUM)
The input number of pulses is integrated for the measurement channels of the 10-CH
Pulse Input Module, or the DI channels of modules that accept digital input.
• Pulse Integration with the 10-CH Pulse Input Module
The number of pulses per measurement interval is integrated on the module. The
integration continues with the TLOG.PSUM computation on the main module.
0 to 10000 pulses/s
• Pulse Integration with DI Channels
The ON/OFF statuses are measured on the module, and the number of changes from
OFF to ON are retained.
The integration continues with the TLOG.PSUM computation on the main module.
Integration is performed at an interval of 100 ms or more, but pulse integration is
performed at the measurement interval of modules that accept digital input (DI).
• 0 to 40 pulses/s (measurement interval: 10 ms, duty: 50%)
• 0 to 4 pulses/s (measurement interval: 100 ms, duty: 50%)
• 0 to 0.8 pulses/s (measurement interval: 500 ms, duty: 50%)
1.15 MATH Function (/M1 Option)