Analog modules
6.9 Analog input module SM 331; AI 8 x RTD; (6ES7331-7PF01-0AB0)
S7-300 Module data
380 Manual, 06/2017, A5E00105505-AJ
6.9 Analog input module SM 331; AI 8 x RTD; (6ES7331-7PF01-0AB0)
6.9.1 Analog input module SM 331; AI 8 x RTD (6ES7331-7PF01-0AB0)
Order number
6ES7331-7PF01-0AB0
Properties
● 8 inputs in 4 channel groups
● Measurement type programmable for each channel group
– Resistor
– Temperature
● Programmable resolution for each channel group (15 bits + sign)
● Measuring range selection for each channel group
● Configurable diagnostics and diagnostic interrupt
● Limit monitoring adjustable for 8 channels
● Hardware interrupt can be set for violation of the limit
● Fast measurement update for 4 channels
● Hardware interrupt can be set for end of scan cycle
● Potential-free from the CPU
● Supports the Configuration in RUN function
Resolution
The resolution of measured values is independent of the selected integration time.
Diagnostics
You can find the diagnostic messages grouped under the "Group diagnostics" parameter in
the section Diagnostic messages of the analog input modules.
Hardware interrupts
You can set hardware interrupts in STEP 7 for channel groups 0 and 1. However, set a
hardware interrupt only for the first channel of a channel group, that is, either at channel 0, or
at channel 2.
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