Analog modules
6.8 Analog input module SM 331; AI 2 x 12 bit; (6ES7331-7KB02-0AB0)
S7-300 Automation System Module data
Manual, 08/2006, A5E00105505-04
6-61
6.8 6.8 Analog input module SM 331; AI 2 x 12 bit; (6ES7331-7KB02-0AB0)
Order number: : "Standard module"
6ES7331-7KB02-0AB0
Order number: "SIPLUS S7-300 module"
6AG1331-7KB02-2AB0
Properties
● Two inputs in one channel group
● Measuring method adjustable per channel group
– Voltage
– Current
– Resistance
– Temperature
● Resolution adjustable per channel group (9/12/14 bits + sign)
● Measuring range selection any, per channel group
● Programmable diagnostics and diagnostic interrupt
● Limit value monitoring adjustable for 2 channels
● Hardware interrupt can be set with limit alarm
● Electrically isolated to CPU and load voltage (not for 2-wire transducers)
Resolution
The measured value resolution is directly proportional to the selected integration time, i.e.
the measured value resolution increases in proportion to the increase in the length of the
integration time at the analog input channel (see Technical data.)
Diagnostics
For information on diagnostics message consolidated at the "group diagnostics" parameter,
refer to the table
Diagnostics messages of analog input modules
.
Hardware interrupts
You can set a hardware interrupt for the channel group in
STEP 7
. However, you always
have to set the hardware interrupt at channel 0.
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