UN 231-5PD32-0XB0
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SM 1231 Analog input 1200PLC Module which is similar as Siemens S7 - 1200 PLC
1) SM 1231 4RTD 16-bit resolution
2) Compatible with Siemens 6ES7 231-5PD32-0XB0;
3) Analog input module;
4) Could connect with Siemens 1200 CPU and Modules;
5) 3-year warranty;
6) 2-3 working days after payment can ship;
7) Material: ABS, IC
Model | SM 1231 Al 4×16 bits RTD |
Order number | UN 231-5PD32-0XB0 |
General | |
Dimension W x H x D ( mm ) | 45×100×75 |
Weight | 220 g |
Power consumption | 1.5 W |
Current consumption (SM bus) | 80 mA |
Current consumption (24 VDC) | 40 mA |
Analog input | |
Number of input channels | 4 |
Type | RTDs and Resistors |
Range | Platinum (Pt), copper (Cu), nickel (Ni), LG-Ni or resistance |
Resolution Temperature Resistance |
0.1ºC/0.1F 15 bits + sign bit |
Maximum withstand voltage | ±35 V |
Noise suppression | 85 dB,10 Hz/50 Hz/60 Hz/400 Hz |
Common mode rejection | >120 dB |
Impedance | ≥10 MQ |
Isolation Field side and logic side On-site side and 24VDC side 24 V DC side and logic side |
707V DC(Type test) |
Channel-to-channel isolation | None |
Repeatability | ±0.05 %FS |
Measurement principle | Integral |
Cold junction error | --- |
Cable length (meter) | Maximum length to sensor 100 m |
Cable resistance | 20Ω,2.7Ω for 10 ΩRTD |
Diagnosis | |
Overflow/Underflow | √ |
Break circuit | √ |
24V DC low voltage | √ |
20 years experience
3-year warranty
Support free sample test

- 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.
- 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.