Key Features
- Analog input module for SIMATIC S7-1200: SM 1231 analog input module with 8 AI.
- Voltage and current input ranges: Supports +/-10 V, +/-5 V, +/-2.5 V, or 0-20 mA/4-20 mA.
- Resolution and conversion detail: 12 bit+sign or (13 bit ADC); Resolution with overrange (bit including sign), max.: 12 bit; + sign.
- Diagnostics and alarms: Alarms, diagnostics function, diagnostic alarm, monitoring the supply voltage, and wire break detection are supported.
- Supply and installation data: Rated value (DC): 24 V; current consumption, typ.: 60 mA; from backplane bus 5 V DC, typ.: 90 mA.
Applications
- Analog signal acquisition for SIMATIC S7-1200: Acquires current or voltage differential inputs for a SIMATIC S7-1200 controller.
Technical Summary
| Product type designation | SM 1231, AI 8×13 bit |
|---|---|
| Number of analog inputs | 8; Current or voltage differential inputs |
| Voltage input ranges | ±10V, ±5V, ±2.5V |
| Current input ranges | 4 to 20 mA, 0 to 20 mA |
| Rated value (DC) | 24 V |
| Current consumption, typ. | 60 mA |
| from backplane bus 5 V DC, typ. | 90 mA |
| Power loss, typ. | 1.5 W |
| Cycle time (all channels) max. | 625 μs |
| Resolution with overrange (bit including sign), max. | 12 bit; + sign |
| Integration time, parameterizable | Yes |
| IP degree of protection | IP20 |
Frequently Asked Questions
What is Siemens 6ES7231-4HF32-0XB0 used for?
It is an SM 1231 analog input module for SIMATIC S7-1200 with 8 AI.
Which input signals does 6ES7231-4HF32-0XB0 support?
It supports voltage inputs of +/-10 V, +/-5 V, and +/-2.5 V, and current inputs of 0-20 mA and 4-20 mA.
What are the power requirements for this SM 1231 module?
Rated value (DC): 24 V. Current consumption, typ.: 60 mA. From backplane bus 5 V DC, typ.: 90 mA.
What diagnostics are available on 6ES7231-4HF32-0XB0?
It supports alarms, diagnostics function, diagnostic alarm, monitoring the supply voltage, and wire break detection.
