Technical Summary
| Product type designation | SM 1231, AI 8×13 bit |
|---|---|
| Analog inputs | 8; Current or voltage differential inputs |
| Voltage input ranges | +/-10 V, +/-5 V, +/-2.5 V |
| Current input ranges | 4 to 20 mA, 0 to 20 mA |
| Rated DC supply voltage | 24 V |
| Resolution with overrange | 12 bit; + sign |
| Cycle time, all channels max. | 625 μs |
| Current consumption, typ. | 60 mA |
| Power loss, typ. | 1.5 W |
| IP degree of protection | IP20 |
Key Features
SIMATIC S7-1200 analog input module
SM 1231 for the SIMATIC S7-1200 series.
SM 1231 for the SIMATIC S7-1200 series.
8 analog inputs
Provides 8 current or voltage differential inputs.
Provides 8 current or voltage differential inputs.
Voltage and current input ranges
Supports +/-10 V, +/-5 V, +/-2.5 V, 4 to 20 mA, and 0 to 20 mA.
Supports +/-10 V, +/-5 V, +/-2.5 V, 4 to 20 mA, and 0 to 20 mA.
13-bit class designation
Product type designation: SM 1231, AI 8×13 bit.
Product type designation: SM 1231, AI 8×13 bit.
Industrial supply and protection
Rated value (DC): 24 V and IP20 degree of protection.
Rated value (DC): 24 V and IP20 degree of protection.
Applications
Analog signal acquisition
Acquires 8 current or voltage differential inputs.
Acquires 8 current or voltage differential inputs.
Voltage signal measurement
Measures inputs in the +/-10 V, +/-5 V, and +/-2.5 V ranges.
Measures inputs in the +/-10 V, +/-5 V, and +/-2.5 V ranges.
Current signal measurement
Measures inputs in the 4 to 20 mA and 0 to 20 mA ranges.
Measures inputs in the 4 to 20 mA and 0 to 20 mA ranges.
Frequently Asked Questions
What is Siemens 6ES7231-4HF32-0XB0?
It is a SIMATIC S7-1200 SM 1231 analog input module with 8 AI.
How many analog inputs does 6ES7231-4HF32-0XB0 have?
It has 8 current or voltage differential inputs.
Which input ranges does SM 1231 AI 8×13 bit support?
It supports +/-10 V, +/-5 V, +/-2.5 V, 4 to 20 mA, and 0 to 20 mA.
What are the supply and current requirements for 6ES7231-4HF32-0XB0?
Rated value (DC) is 24 V, with current consumption, typ. 60 mA and from backplane bus 5 V DC, typ. 90 mA.
What resolution and cycle time does the module provide?
Resolution with overrange is 12 bit; + sign, and cycle time (all channels) max. is 625 μs.
