Siemens 6ES7231-4HF32-0XB0
Siemens 6ES7231-4HF32-0XB0
Siemens 6ES7231-4HF32-0XB0
Siemens 6ES7231-4HF32-0XB0
Siemens 6ES7231-4HF32-0XB0
Siemens 6ES7231-4HF32-0XB0
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    Discontinued / Obsolete by OEM
    Apter Power stocks genuine Siemens 6ES7231-4HF32-0XB0 AI expansion boards, providing original, factory-sealed PLC hardware.

6ES7231-4HF32-0XB0

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The Siemens 6ES7231-4HF32-0XB0 is a 8-channel differential analog input module designed to seamlessly expand the process monitoring capabilities of your SIMATIC S7-1200 PLC system.
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Technical specifications for 6ES7231-4HF32-0XB0

  • Manufacturer:
    Siemens
  • Part Number:
    6ES7231-4HF32-0XB0
  • Product Family:
    Siemens Simatic S7-200
  • Product Type:
    Analog Input SM 1231 Module
  • Stock:
    2
  • Analog Input Channels:
    8; Current or voltage differential inputs
  • Rated Supply Voltage:
    24 V DC
  • Current Consumption:
    60 mA/ 90 mA
  • Power Loss:
    1.5 W typical
  • Conversion Cycle Time:
    Maximum 625 µs for all 8 channels combined
  • Voltage Input Ranges:
    ±10 V, ±5 V, ±2.5 V (Input Resistance: 9 MOhm)
  • Current Input Ranges:
    0 to 20 mA, 4 to 20 mA (Input Resistance: 280 Ω)
  • Destruction Limits:
    Max. 35 V for voltage / Max. 40 mA for current inputs
  • Resolution / Accuracy:
    12 bits + sign bit; ±0.1% basic operational limit at 25°C
  • Weight:
    0.18 kg
  • Estimated shipping dimensions:
    4.4x7.4x9.9cm
  • Tariff Code:
    8537101190
  • Country of origin:
    Germany
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Applications Environmental Ratings Certifications & Standards

Features:

  • High-Precision 13-Bit Conversion Architecture
  • Robust Hardware Protection and Noise Immunity
  • Comprehensive Multi-Level Diagnostics Suite
The Siemens 6ES7231-4HF32-0XB0 features a 12-bit plus sign analog-to-digital converter that delivers exceptional measurement accuracy. With a remarkably low operational error limit of just ±0.1% at 25°C for both voltage and current ranges, this expansion module guarantees highly reproducible data collection for sensitive process variables.

Engineered for harsh electrical environments, the Siemens 6ES7231-4HF32-0XB0 boasts a high destruction limit of 35V for voltage inputs and 40mA for current inputs. It features advanced common-mode voltage filtration up to 12V and a 40 dB interference suppression rating to eliminate 50/60 Hz grid noise.

The Siemens 6ES7231-4HF32-0XB0 features an active diagnostic alarm matrix that monitors live system integrity. Technicians benefit from automated wire-break detection on critical 4-20 mA loops and internal backplane bus monitoring, allowing processing facilities to mitigate unexpected faults before they escalate.

The 6ES7231-4HF32-0XB0 Siemens SIMATIC S7-1200 Analog Input SM 1231 Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6ES7231-4HF32-0XB0 SIMATIC S7-1200 Analog Input SM 1231 Module Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Siemens 6ES7231-4HF32-0XB0 SIMATIC S7-1200 Analog Input SM 1231 Module

General

  • Manufacturer Siemens
  • Model 6ES7231-4HF32-0XB0
  • Condition New Original ready stock
  • Product Family 6ES7221-1BH32-0XB0,6ES7222-1BH32-0XB0,6ES7222-1HF22-0XA0
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Water and Wastewater Treatment: The Siemens 6ES7231-4HF32-0XB0 is heavily utilized to monitor continuous flow rates, tank levels, and pH levels via 4-20 mA transmitter loops.
  • Factory Automation and Assembly Lines: This module interfaces with multi-axis sensors and positioning equipment using voltage feedback signals (±10V) to maintain precise material alignment.
  • HVAC and Building Management Systems: The Siemens 6ES7231-4HF32-0XB0 monitors differential air pressures, duct humidity levels, and climate control values across large facility networks.
  • Extended Operational Temperatures: Supports an operational layout range of -20°C to 60°C for horizontal arrays, adapting well to unconditioned field enclosures.
  • Extreme Atmosphere Protection: Certified to operate safely without performance loss under high non-condensing relative humidity levels of up to 95% at 25°C.
  • Corrosive Pollutant Resistance: Engineered to resist chemical stress in harsh environments, limiting SO₂ exposure to <0.5 ppm and H₂S to <0.1 ppm.
  • Global Industrial Approvals: Bears the CE Mark alongside definitive UL and cULus listings, allowing for trouble-free import and compliance verification across North America and Europe.
  • Hazardous Location Safety: Fully compliant with FM (Factory Mutual) standards, proving the hardware's structural safety within potentially explosive industrial zones.
  • Marine & Offshore Compliance: Holds accredited Marine Approvals, confirming high resistance against continuous structural vibration on marine vessels and offshore rigs.
Description
Optimized for space-constrained control cabinets, the Siemens 6ES7231-4HF32-0XB0 packs 8 high-precision differential analog inputs into a compact 45mm housing. This allows industrial operators to scale up factory field device connections without expanding rack space, significantly lowering deployment costs.

Built to handle dynamic plant floor environments, the Siemens 6ES7231-4HF32-0XB0 supports multiple standard industrial signal ranges including ±10V, ±5V, ±2.5V, as well as 0-20 mA and 4-20 mA current loops. Each channel configuration offers excellent noise immunity and flexible integration for diverse sensor types.

Equipped with a fast 13-bit ADC (12-bit plus sign), the Siemens 6ES7231-4HF32-0XB0 ensures rapid analog-to-digital value generation with a total cycle time of just 625 µs across all channels. Parameterizable integration times and four-step value smoothing allow engineers to stabilize erratic process variables effortlessly. 

The Siemens 6ES7231-4HF32-0XB0 actively minimizes plant downtime via sophisticated on-board diagnostics, featuring real-time supply voltage monitoring and wire-break detection. Clear LED status and maintenance indicators provide frontline technicians with immediate visual troubleshooting data.
Alternative Names
6ES723I-4HF32-0XB0 6ES7231-4HF32-OXBO 6ES7231-4HF32-0X80 6ES7231 4HF32 0XB0 6ES7221-1BH32-0XB0 6ES7231-4HF32-0XB0 6ES72314HF320XB0
Technical notes
The Siemens 6ES7231-4HF32-0XB0 module features a configurable smoothing filter design; it supports four levels of measurement value smoothing—none, low, medium, and high—and utilizes this filtering to mitigate the impact of industrial interference signals.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What is the input impedance of the Siemens 6ES7231-4HF32-0XB0 channels, and how does it prevent signal degradation?
When configured for voltage measurement (±10 V, ±5 V, or ±2.5 V), the Siemens 6ES7231-4HF32-0XB0 provides an input resistance of 9 MΩ, minimizing current draw from the loop. For current configurations (0-20 mA / 4-20 mA), it drops to a precise 280 Ω internal resistance. This ensures minimal signal loss over long field cable runs, keeping your data points accurate up to its 13-bit ADC threshold.
How do you configure the digital smoothing levels on the Siemens 6ES7231-4HF32-0XB0 to handle electrical noise?
Engineers can parameterize signal smoothing in STEP 7 Basic or TIA Portal across four preset steps: None, Low, Medium, or High. The Siemens 6ES7231-4HF32-0XB0 applies a moving average filter based on the chosen tier.
Does the Siemens 6ES7231-4HF32-0XB0 support 2-wire transmitters directly, and what happens during a field wire break?
The Siemens 6ES7231-4HF32-0XB0 features differential inputs and does not feed loop power directly to 2-wire devices; an external 24V DC power supply must be wired into the loop. If a wire break occurs on a 4-20 mA signal path, the channel value drops below the lower limit, triggering the module’s diagnostic alarm and illuminating the red maintenance LED for fast troubleshooting.
What are the layout orientation and temperature constraints when installing the Siemens 6ES7231-4HF32-0XB0?
Thermal management of the Siemens 6ES7231-4HF32-0XB0 depends on its mounting layout. Horizontal DIN-rail installation allows the module to operate from -20°C to 60°C due to optimized airflow. However, if your control panel requires a vertical layout, the maximum safe operating temperature drops to 50°C to prevent internal heat build-up.
Which international hazardous area certifications does the Siemens 6ES7231-4HF32-0XB0 hold for global projects?
The Siemens 6ES7231-4HF32-0XB0 is fully certified for international environments, carrying FM approval, UL, cULus, and CE markings. This validates its use in Class I, Div. 2 industrial settings. It also features Marine approval, allowing system builders to install this card on ocean vessels or offshore platforms subject to severe vibration.
How can I submit a price quote request for 6ES7231-4HF32-0XB0?
Contact us with the target quantity, destination country/region, and project timeline to receive an immediate quote for the 6ES7231-4HF32-0XB0.

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