Programmable Logic Controller Guide: Selection, Application, and Maintenance for Engineers
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- Part number
- 6ES7231-4HA30-0XB0
- Model no
- SB 1231, AI 1x12 bit
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· From Türkiye
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SIMATIC S7-1200Siemens 6ES7231-4HA30-0XB0 SIMATIC S7-1200 SB 1231 1AI 12-Bit PLC I/O Module
SIMATIC S7-1200 SB 1231 signal board, 1 analog input, +/-10V or 0-20mA, 12-bit
Description
About the SB 1231, AI 1x12 bit
About the SB 1231, AI 1x12 bit
The Siemens 6ES7231-4HA30-0XB0 is a SIMATIC S7-1200 signal board (SB 1231) adding one analog input channel, selectable for +/-10 V, +/-5 V, +/-2.5 V voltage ranges or 0-20 mA current, with 11-bit plus sign resolution. It plugs directly into the CPU housing without using rack space, wired through a required front connector.
Certifications & Standards
- CE
- CSA
- UL
- cULus
- FM
- RCM
- KC
- Marine
Selection Notes
One parameterizable channel covering both voltage (+/-10 V down to +/-2.5 V) and 0-20 mA current inputs lets this board read a single transmitter without dedicating a full analog expansion module to it, which matters on S7-1211C/1212C CPUs with only one signal-board slot. Pick a multi-channel analog input module instead once the panel has more than one analog signal to bring in, since this board's 11-bit-plus-sign resolution and single channel are sized for adding one measurement point, not a full analog I/O bank.
Applications
Reading a single analog transmitter or sensor (0-10 V, 4-20 mA loop within the 0-20 mA range, or a smaller +/-2.5/5 V signal) directly into a compact SIMATIC S7-1200 CPU without adding an expansion module.
Specification
Full specification
General information 1
| Product type designation | SB 1231, AI 1x12 bit |
|---|
Supply voltage 1
| Rated value (DC) | 24 V |
|---|
Input current 1
| from backplane bus 5 V DC, typ. | 55 mA |
|---|
Show all 83 specifications ↓ Show less ↑80 more values in Identification, Power loss, Analog inputs, Analog outputs, Analog value generation for the inputs, Errors/accuracies, Interrupts/diagnostics/status information, Standards, approvals, certificates, Ambient conditions, Connection method, Version Classification, Logistics.
Identification 10
| Part number | 6ES7231-4HA30-0XB0 |
|---|---|
| Type designation | SB 1231, AI 1x12 bit |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 6940408100909 |
| ETIM class | EC001420 |
| eCl@ss | 27242201 |
Power loss 1
| Power loss, typ. | 0.4 W |
|---|
Analog inputs 19
| Number of analog inputs | 1; Current or voltage differential inputs |
|---|---|
| permissible input voltage for current input (destruction limit), max. | ±35 V |
| permissible input voltage for voltage input (destruction limit), max. | 35 V |
| permissible input current for voltage input (destruction limit), max. | 40 mA |
| permissible input current for current input (destruction limit), max. | 40 mA |
| Cycle time (all channels) max. | 156.25 µs; 400 Hz suppression |
| Input ranges: Voltage | Yes; ±10V, ±5V, ±2.5V |
| Input ranges: Current | Yes; 0 to 20 mA |
| Input ranges: Thermocouple | No |
| Input ranges: Resistance thermometer | No |
| Input ranges: Resistance | No |
| Input ranges (rated values), voltages: -10 V to +10 V | Yes |
| Input ranges (rated values), voltages: Input resistance (-10 V to +10 V) | ≥9 MOhm |
| Input ranges (rated values), voltages: -2.5 V to +2.5 V | Yes |
| Input ranges (rated values), voltages: Input resistance (-2.5 V to +2.5 V) | ≥9 MOhm |
| Input ranges (rated values), voltages: -5 V to +5 V | Yes |
| Input ranges (rated values), voltages: Input resistance (-5 V to +5 V) | ≥9 MOhm |
| Input ranges (rated values), currents: 0 to 20 mA | Yes |
| Input ranges (rated values), currents: Input resistance (0 to 20 mA) | ≥ 250 Ohm |
Analog outputs 2
| Number of analog outputs | 0 |
|---|---|
| Cable length: shielded, max. | 100 m; shielded, twisted pair |
Analog value generation for the inputs 9
| Measurement principle | integrating |
|---|---|
| Integration and conversion time/resolution per channel: Resolution with overrange (bit including sign), max. | 11 bit; + sign |
| Integration and conversion time/resolution per channel: Integration time, parameterizable | Yes |
| Integration and conversion time/resolution per channel: Interference voltage suppression for interference frequency f1 in Hz | 40 dB, DC to 60 Hz |
| Smoothing of measured values: parameterizable | Yes |
| Smoothing of measured values: Step: None | Yes |
| Smoothing of measured values: Step: low | Yes |
| Smoothing of measured values: Step: Medium | Yes |
| Smoothing of measured values: Step: High | Yes |
Errors/accuracies 1
| Temperature error (relative to input range), (+/-) | 25 °C ±0.3%, to 55 °C ±0.6% total measurement range |
|---|
Interrupts/diagnostics/status information 6
| Alarms | Yes |
|---|---|
| Diagnostics function | Yes |
| Alarms: Diagnostic alarm | Yes |
| Diagnoses: Wire break | No |
| Diagnostics indication LED: for status of the inputs | Yes |
| Diagnostics indication LED: for maintenance | Yes |
Standards, approvals, certificates 8
| CE mark | Yes |
|---|---|
| CSA approval | Yes |
| UL approval | Yes |
| cULus | Yes |
| FM approval | Yes |
| RCM (formerly C-TICK) | Yes |
| KC approval | Yes |
| Marine approval | Yes |
Ambient conditions 13
| Free fall: Fall height, max. | 0.3 m; five times, in product package |
|---|---|
| Ambient temperature during operation: min. | -20 °C |
| Ambient temperature during operation: max. | 60 °C |
| Ambient temperature during operation: horizontal installation, min. | -20 °C |
| Ambient temperature during operation: vertical installation, min. | -20 °C |
| Ambient temperature during storage/transportation: min. | -40 °C |
| Ambient temperature during storage/transportation: max. | 70 °C |
| Air pressure acc. to IEC 60068-2-13: Operation, min. | 795 hPa |
| Air pressure acc. to IEC 60068-2-13: Operation, max. | 1 080 hPa |
| Air pressure acc. to IEC 60068-2-13: Storage/transport, min. | 660 hPa |
| Air pressure acc. to IEC 60068-2-13: Storage/transport, max. | 1 080 hPa |
| Relative humidity: Operation at 25 ℃ without condensation, max. | 95 % |
| Pollutant concentrations: SO2 at RH < 60% without condensation | S02: < 0.5 ppm; H2S: < 0.1 ppm; RH < 60 % condensation-free |
Connection method 1
| required front connector | Yes |
|---|
Version Classification 4
| eClass | 16 27-24-22-01 |
|---|---|
| ETIM | 10 EC001420 |
| IDEA | 4 3562 |
| UNSPSC | 15 32-15-17-05 |
Logistics 6
| Net weight | 0.029 kg |
|---|---|
| Country of origin | CN |
| Shipping weight | 0.529 kg |
| Ships from | Türkiye |
| Dispatch | 12 Nov |
| Stock | In stock |
Source: manufacturer data · Last verified: 01 Nov 2026
Documents
Documents for 6ES7231-4HA30-0XB0
No documents are on file for this part yet.
Ask us for the datasheet
Certifications
Certifications and standards
- CE mark
- CSA approval
- UL approval
- cULus
- FM approval
- RCM (formerly C-TICK)
- KC approval
- Marine approval
Quick answers
Questions about the SB 1231, AI 1x12 bit
Which supply voltage is SB 1231, AI 1x12 bit rated for?
The rated operational voltage of SB 1231, AI 1x12 bit is 24 V AC.
What is the HS code of SB 1231, AI 1x12 bit for customs?
The tariff (HS) code on file for SB 1231, AI 1x12 bit is 85389091.
What is the EAN of SB 1231, AI 1x12 bit?
The EAN (GTIN) of SB 1231, AI 1x12 bit is 6940408100909.
Where does SB 1231, AI 1x12 bit ship from, and how fast?
SB 1231, AI 1x12 bit ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.
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Reviews
Customer reviews
Series
Siemens SIMATIC S7-1200
- Brand
- Siemens
- Series
- SIMATIC S7-1200
