2 Instrument description
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2.6 Math / logic module
The math and logic module is available as an extra from instrument software
133.03.xx. As is the case with the counters/integrators/timers, the math and
logic module, too, are channels that are not available in hardware, but are cal-
culated through the instrument software.
The math and logic module consists of 2 parts:
- the math module for calculating analog values and
- the logic module for calculating boolean values (0 or 1).
Math module Using the math module, measurement inputs can be used to calculate new
“virtual” channels.
There are no separate math channels for the calculated channels, the existing
analog channels 1 — 3 (6) are used instead. In configuration, you have to se-
lect the Mathematics option under the parameter “Sensor” for the required
channel.
Configuration ➔ Analog input x ➔ Sensor = Mathematics
Each of the 6 channels can either be used for recording the corresponding
channel, or as a math channel. With a 3-channel instrument, three additional
“virtual” channels can thus be created.
When the measurement inputs AE1 and AE2 are mathe-
matically linked, the measurement inputs AE3 — AE5 in
the example above are not available as sensor inputs.
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