6ES7231-4HF32-0XB0 Siemens SIMATIC S7-1200 Analog Input Module
Price:
1-99$
MOQ:
1
Delivery Time:
in stock / 1-3 work days
Brand:
SIEMENS
Product Description
Siemens SIMATIC S7-1200 Analog Input Module
The Siemens 6ES7231-4HF32-0XB0 is a high-precision 8-channel Analog Input Module for the SIMATIC S7-1200 series, designed as an expansion module for compact and scalable automation solutions. This high-end configuration offers superior resolution and flexibility, supporting voltage, current, resistance (RTD), and temperature (Thermocouple) signals directly without external signal conditioners.
Key Features & Benefits
Ultra-High Precision Acquisition
- 25-bit Sigma-Delta ADC delivers exceptional measurement precision (±0.1% of full scale typical)
- Up to 16-bit + sign bit effective resolution for fine signal granularity
- Fast sampling capability: scans all 8 channels in as little as 250 µs
Universal Signal Compatibility
- Software-configurable inputs for voltage, current, or temperature sensors
- Voltage ranges: ±10V, ±5V, ±2.5V, 0-10V
- Current ranges: 0-20mA, 4-20mA (with open-circuit detection)
- RTD support: Pt100, Pt200, Pt500, Pt1000, Ni100, Ni1000 (2/3-wire)
- Thermocouple support: Type J, K, T, E, R, S, B, N with integrated cold junction compensation
Robustness & Reliability
- Galvanic isolation: 500 VDC channel-to-channel and channel-to-backplane
- Overvoltage protection up to ±35 V DC
- Conformal coating protects against dust, moisture, and corrosive gases
Advanced Diagnostics & Usability
- Channel-level diagnostics for wire breaks, short circuits, and out-of-range values
- LED status indicators for RUN and ERROR conditions
- Seamless integration with S7-1200 CPU via expansion bus
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | 6ES7231-4HF32-0XB0 |
| Product Series | SIMATIC S7-1200 |
| Module Type | Analog Input (AI) |
| Number of Channels | 8 (Single-ended or Differential) |
| ADC Resolution | 25-bit (Sigma-Delta) / 16-bit effective |
| Input Types | Voltage, Current, RTD, Thermocouple (Software Selectable) |
| Voltage Range | ±10 V, ±5 V, ±2.5 V, 0-10 V |
| Current Range | 0-20 mA, 4-20 mA |
| Temperature Sensors | RTD (Pt100/1000, Ni100/1000), TC (J, K, T, E, R, S, B, N) |
| Accuracy | ±0.1% of Full Scale (Typical) |
| Isolation | 500 VDC (Channel-to-Channel, Channel-to-Backplane) |
| Sampling Rate | Up to 4 kHz (per channel) / 250 µs cycle time (all channels) |
| Power Supply | 24 V DC (via backplane bus from CPU) |
| Power Consumption | Approx. 1.8 W (from 5V bus) |
| Dimensions (H x W x D) | 100 mm x 45 mm x 75 mm |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Protection Rating | IP20 / NEMA 1 (Type 1) |
| Certifications | UL, cUL, CE, C-Tick, CCC, ATEX (Zone 2), IECEx |
Typical Applications
Process Control: Temperature, pressure, flow, and liquid level monitoring in chemical reactors
HVAC Systems: Precise temperature control in air handling units and chillers
Water/Wastewater Treatment: pH monitoring, flow rate measurement, and pressure control
Pharmaceutical & Food & Beverage: Batch process control and sterilization monitoring
Energy Management: Power parameter acquisition in substations
Machine Building: Multi-point temperature monitoring for industrial equipment
Related Products & Series
Other S7-1200 Analog Modules
Compatible Controllers
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Xiamen Online Union Technology Co., Ltd
Location
103, No.26, Zhenhai Road, Siming District, Xiamen, China
Contact Person
Jeff Wu