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We are a Chinese PLC/HMI/VFD manufacturer with 20 years of experience.

UN 331-7PF11-0AB0


SM 331 2 AI TC thermocouple temperature measurement 300 PLC Module

1). SM331 8AI TC ; 
2). Compatible with Siemens 6ES7331-7PF11-0AB0 ; 
3). Analog expansion input module ;
4). Could connect with Siemens 300 CPU ;
5). 3- year warranty ;

Model SM331
8AI
Thermocouple
Product  Description 8AI;
Thermocouple temperature measurement modules;
Input voltage range: ± 150mV
Power consumption
@ Rate value 24V DC
@ From backplane bus current consumption 100mA
@ From L+ 200mA
@ Power loss 3W
The power of transmitter
@ Supply current /
@ short-circuit protection /
Number of analog inputs 8
Cable Length(Shielded) Max: 100m
Input type and input range
@ voltage ± 150mV(-32000~+32000)
@ current(4wire)
@ current(2wire) /
@ tesistance
@ thermocouple Type: T, E, J, K, N, R, S
@ RTD /
A/D resolution 16bits
Basic conversion time(per channel) 190ms
Interference frequency suppression 400/50/60Hz
Tolerance(Over entire temperature range)
@ Voltage ± 0.6%
@ Current /
@ resistance /
@ temperature ± 1C
Interrupts
Diagnostic interrupt Per group Yes, Configurable
Limit-value interrupt Yes, Configurable
Isolation tested for contact
@ Between channels Yes
@ Between channels and backplane bu Yes
Front connector 40-pin
Dimensions(W x H x D)(mm) 40× 125× 120
Order Number UN 331-7PF11-0AB0

20 years experience

3-year warranty

Support free sample test


  1. Shenzhen Unimat Automation Technology Co., Ltd., established in 2005, is a National High-Tech Enterprise, a Specialized and Innovative Enterprise, and a participant in the development of the national standard for Programmable Controllers, specializing in industrial automation control.
  2. The company's products include PLCs, HMIs, VFDs, and Industrial Internet of Things systems, all of which have complete independent intellectual property rights.

As of December 2023, UniMAT PLC sales have exceeded 2,000,000 units.