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Siemens 6ES7231-4HA30-0XB0 SIMATIC S7-1200 Analog Input SB 1231
The Siemens 6ES7231-4HA30-0XB0 is a SIMATIC S7-1200 SB 1231 analog input signal board designed to expand the analog input capability of compatible S7-1200 CPUs. It provides 4 analog input channels for standard 0–10 V, ±10 V, 0–20 mA, and 4–20 mA signals, with 12-bit resolution plus sign. Its compact design makes it suitable for industrial instrumentation, process monitoring, machine automation, and applications requiring additional analog signal acquisition.
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Categories: PLC I/O Modules
Description
The Siemens SIMATIC S7-1200 SB 1231 AI 1×12 bit provides one differential analog input for standard industrial voltage and current signals. The input supports ±10 V, ±5 V, ±2.5 V, and 0–20 mA ranges, with an 11-bit resolution plus sign bit and a full-scale data range of −27648 to +27648. The voltage input has an impedance of 150 kΩ, while the current input has an impedance of 250 Ω.
The signal board uses an integrating measurement principle and supports parameterizable integration time, selectable interference suppression at 400, 60, 50, or 10 Hz, and four levels of measured-value smoothing. It also provides overflow/underflow diagnostics, a common-mode rejection of 40 dB, and supports shielded twisted-pair cabling up to 100 m.
QTech Safety is a leading supplier of Siemens 6ES7231-4HA30-0XB0 SIMATIC S7-1200 Analog Input SB 1231 in Ireland, offering competitive prices and fast worldwide shipping across United Kingdom (UK), Germany, France, Italy, Spain, United States USA, Canada, Mexico, and Western Australia (Perth). Buy Siemens PLC I/O Modules from one of Ireland’s most trusted industrial safety equipment suppliers.
Features of Siemens 6ES7231-4HA30-0XB0 SIMATIC S7-1200 Analog Input SB 1231
- Compact analog input signal board for SIMATIC S7-1200 controllers.
- Provides 1 differential analog input for voltage or current measurement.
- Supports voltage ranges of ±10 V, ±5 V, and ±2.5 V.
- Supports a 0–20 mA current input range.
- Provides 11-bit resolution plus sign bit.
- Uses an integrating measurement principle.
- Supports parameterizable integration time and measured-value smoothing.
- Provides selectable interference suppression at 400, 60, 50, or 10 Hz.
- Supports overflow and underflow diagnostics.
- Uses a compact 38 × 62 × 21 mm design.
- Can be mounted directly on an S7-1200 CPU.
- Suitable for adding one analog input where cabinet space is limited.
Technical Specifications of Siemens 6ES7231-4HA30-0XB0
- Product Type: SB 1231, AI 1×12 bit
- Number of Analog Inputs: 1
- Input Type: Differential voltage or current
- Voltage Ranges: ±10 V, ±5 V, ±2.5 V
- Current Range: 0–20 mA
- Resolution: 11 bit + sign bit
- Full-Scale Data Range: −27648 to +27648
- Measurement Principle: Integrating
- Integration Time: Parameterizable
- Interference Suppression: 400 / 60 / 50 / 10 Hz
- Smoothing: None / weak / medium / strong
- Voltage Input Impedance: 150 kΩ
- Current Input Impedance: 250 Ω
- Maximum Withstand Voltage: ±35 V
- Maximum Withstand Current: ±40 mA
- Accuracy at 25°C: ±0.3% of full scale
- Accuracy from −20°C to 60°C: ±0.6% of full scale
- Common-Mode Rejection: 40 dB, DC to 60 Hz
- Operational Signal Range: −35 V to +35 V including common-mode voltage
- Cable Length: 100 m, twisted and shielded
- Diagnostics: Overflow/underflow
- Field-Side Isolation: None
- Rated Supply Voltage: 24 V DC
- Current Consumption from SM Bus: 55 mA
- Power Dissipation: 0.4 W
- Degree of Protection: IP20
- Operating Temperature: −20°C to 60°C
- Storage/Transport Temperature: −40°C to 70°C
- Relative Humidity: Up to 95% at 25°C without condensation
- Front Connector: Required
- Dimensions (W × H × D): 38 × 62 × 21 mm
- Weight: Approx. 35 g
- Product Family: SB 1231 analog input modules
Applications
The Siemens 6ES7231-4HA30-0XB0 SIMATIC S7-1200 Analog Input SB 1231 is commonly used in:
- Adding one analog input to an S7-1200 CPU
- Monitoring 0–20 mA industrial transmitters
- Measuring ±10 V and other standard voltage signals
- Compact machine automation systems
- Process monitoring and control applications
- Space-constrained control panels
Why Choose QTech Safety?
At QTech Safety, we’re more than just a safety supplier we’re your trusted partner in workplace protection and compliance.
Here’s why companies across UK and Ireland (EU) choose us for safety products and training:
- Comprehensive Range of Safety Equipment:
From gas detection and PPE to industrial safety tools, we offer one of the widest selections of trusted brands all at competitive Irish market prices. - Test & Measurement Instruments You Can Trust:
We supply a wide range of test and measurement instruments from the most leading and trusted brands, including industrial sensors, multimeters, oscilloscopes, accelerometers, proximity sensors, and other advanced measurement tools to support accurate diagnostics, condition monitoring, calibration, and maintenance applications. - Expert Health & Safety Training:
We provide professional health and safety training programmes designed to help your workforce stay compliant and confident on the job. - Fast, Reliable Delivery Worldwide:
Whether you’re in Texas United States or Perth Western Australia, our fast delivery service ensures you get your safety equipment quickly and efficiently. - Trusted by European Businesses:
We’re proud to support industries across Europe (UK) with certified safety solutions, expert advice, and responsive customer service.
We Ship Worldwide
At QTech Safety, we supply industrial sensors and instrumentation across Ireland, offering fast and reliable worldwide delivery. Through strong global logistics partnerships, we ensure efficient shipping and professional support for customers in Europe, North America, and Australia.
🡆 Europe (United Kingdom, Ireland, Germany, France, Italy, Spain, and the rest of European Union)
🡆 Australia (Western Australia WA, Queensland QLD, and New South Wales NSW)
🡆 North America (United States, Canada, Mexico)
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