Siemens SIMATIC S7-200 RTD Input Module 6ES7231-7PB21-0XA0
Siemens SIMATIC S7-200 RTD Input Module with 2 Analog Inputs.
The Siemens 6ES7231-7PB21-0XA0 is an EM 231 RTD Input Module for the SIMATIC S7-200 series, specifically designed for S7-22X CPUs. This module offers two analog inputs (2AI) and supports a wide array of RTD and resistance sensors, including PT100, PT200, PT500, PT1000, PT10000, NI100, NI120, NI1000, CU10, and resistance measurements from 150 to 600 ohms. It boasts a high resolution of 15 bits plus sign for precise data acquisition.
This module is ideal for temperature and resistance monitoring in various industrial applications where accuracy is paramount. Its robust design ensures reliable performance in demanding environments, making it suitable for process control, automation, and monitoring systems across industries like manufacturing, chemical processing, and energy.
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| Part Number | 6ES7231-7PB21-0XA0 |
| Manufacturer | Siemens |
| Series | SIMATIC S7-200 |
| Type | RTD Input Module |
| Analog Inputs | 2 |
| RTD Types | PT100/200/500/1000/10000, NI100/120/1000, CU10 |
| Resistance Range | 150/300/600 Ohm |
| Resolution | 15 Bit + Sign |