Siemens SIMATIC User Manual

Analog modules
6.3 Analog input module SM 331; AI 8 x 16 bit; (6ES7331-7NF00-0AB0)
S7-300 Module data
308 Manual, 06/2017, A5E00105505-AJ
High-speed update of measured values
A high-speed update of measured values at two channels of a channel group is three times
compared to the activation of several channel groups.
Example: When channels 0 and 1 are active with 2.5 ms filtering, both channels return new
measured values to the PLC at intervals of 10 ms. (with other settings, the refresh rate is
equivalent to the filter setting.)
High-speed update of measured values is only possible if both channels of channel group 0
and 1 are active, that is, the "measuring type" parameter is set. However, only one of the two
channel groups 0 or 1 may be active (not concurrently active.)
Terminal assignment
The diagrams below show various wiring options

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)