Measurement Types And Ranges - Siemens SIMATIC Manual

Parameter reassignment in RUN
If you reassign parameters in RUN, the following special characteristic applies.
SF LED is lit:
If a diagnostics was pending prior to reconfiguration, the SF LEDs (on CPU, IM or module)
may be lit even though diagnostics are no longer pending and the module is operating
correctly.
Solution:
● Only assign new parameters if no diagnostics is pending, or
● unplug module and plug it in again.
6.3.1

Measurement types and ranges

Introduction
The measurement type and range is configured at the "measuring range" parameter in
STEP 7
The default setting of the module is "voltage" measurement with "± 10V" range. You can use
these default settings without having to program the SM 331; AI 8 x 16 Bit in
Measurement types and ranges
Table 6- 5
Selected type of measurement
Voltage V:
Current
S7-300 Module data
Manual, 06/2017, A5E00105505-AJ
6.3 Analog input module SM 331; AI 8 x 16 bit; (6ES7331-7NF00-0AB0)
.
Measurement types and ranges
Measuring range
± 5 V
1 V to 5 V
± 10 V
0 mA to 20 mA
± 20 mA
4 mA to 20 mA
Analog modules
STEP 7
.
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