Key Features
- Analog input module: SM 1231, AI 8×13 bit with 8 analog inputs.
- Supported input signals: Supports voltage and current differential inputs, including +/-10 V, +/-5 V, +/-2.5 V, 0 to 20 mA, and 4 mA to 20 mA.
- Conformal coating and temperature range: Conformal coating with operating temperature range -20…+60 °C.
- Supply and power data: Rated value (DC): 24 V. Current consumption, typ.: 45 mA. Power loss, typ.: 1.5 W.
- Diagnostics features: Alarms, diagnostics function, diagnostic alarm, monitoring the supply voltage, wire break, and diagnostic indication LEDs for input status and maintenance.
- Physical details: Width 45 mm, height 100 mm, depth 75 mm, with required front connector.
Technical Summary
| Product type designation | SM 1231, AI 8×13 bit |
|---|---|
| Based on | 6ES7231-4HF32-0XB0 |
| Rated value (DC) | 24 V |
| Current consumption, typ. | 45 mA |
| from backplane bus 5 V DC, typ. | 90 mA |
| Power loss, typ. | 1.5 W |
| Number of analog inputs | 8; Current or voltage differential inputs |
| Cycle time (all channels) max. | 625 μs |
| Input ranges | Current; Yes; 4 to 20 mA, 0 to 20 mA |
| Resolution with overrange (bit including sign), max. | 12 bit; + sign |
| IP degree of protection | IP20 |
| Ambient temperature during operation min. | -20 °C; = Tmin (incl. condensation/frost); start-up @ 0 °C |
| Ambient temperature during operation max. | 60 °C; = Tmax |
| Conformal coating | Yes; Conformal coating, Class A |
| required front connector | Yes |
Applications
- Analog signal acquisition: Acquires voltage and current differential input signals on 8 analog channels.
- Voltage and current measurement: Processes input ranges of +/-10 V, +/-5 V, +/-2.5 V, 0 to 20 mA, and 4 mA to 20 mA.
Frequently Asked Questions
What is the exact model of this Siemens analog input module?
It is Siemens 6AG1231-4HF32-4XB0, a SIPLUS S7-1200 SM 1231 analog input module.
How many analog inputs does 6AG1231-4HF32-4XB0 provide?
It provides 8 analog inputs.
Which input ranges are supported by this SM 1231 module?
It supports voltage input ranges of +/-10 V, +/-5 V, and +/-2.5 V, and current input ranges of 0 to 20 mA and 4 mA to 20 mA.
What supply and power data are listed for the module?
Rated value (DC) is 24 V, current consumption, typ. is 45 mA, and power loss, typ. is 1.5 W.
What connection and physical details should be checked before ordering?
The module requires a front connector and measures 45 mm wide, 100 mm high, and 75 mm deep.
