Siemens SIMATIC User Manual

Parameter sets of signal modules
A.9 Parameters of analog input module SM 331; AI 8 x 13 Bit
S7-300 Module data
558 Manual, 06/2017, A5E00105505-AJ
Temperature measurement
The table below lists the temperature measurement codes to be enterd at byte 0 of data
record 1 (see the previous figure.)
Table A- 21 Temperature measurement codes of the analog input module
Temperature unit for linearization
Code
degrees Celsius
2#0000 0000
Degrees Fahrenheit 2#0000 1000
Kelvin
2#0001 0000
Interference frequency suppression
The table below contains the frequency codes to be entered at byte 1 of data record 1 (see
the previous figure.) Make allowances for the resultant integration time at each module!
Table A- 22 Interference frequency suppression codes of the analog input module
Interference frequency suppression
Integration time
Code
60 Hz 50 ms 2#01
50 Hz
60 ms
2#10
Measurement types and measuring ranges
The table below contains all the measurement types and measuring ranges of the analog
input module, including their codes. Enter these codes at bytes 2 to 13 in data record 1 (refer
to the previous figure.)
Note
The front connector of the analog input module must be wired in accordance with the
measuring range!

Siemens SIMATIC Specifications

General

Product type designation	SIMATIC
CPU	Varies by model
Memory	Varies by model
Input/Output	Varies by model
Communication	Varies by model
Programming Language	STEP 7
Operating Temperature	0°C to 60°C (varies by model)
Protection Class	IP20
Category	Programmable Logic Controller (PLC)