Siemens SIMATIC S7-1200 G2 SM 1231 AI 8x 14 bit Analog Input Module (6ES7231-4HF50-0XB0)

The Siemens SIMATIC S7-1200 G2 SM 1231 AI 8x 14 bit Analog Input Module (6ES7231-4HF50-0XB0) is a high-performance signal module designed for the SIMATIC S7-1200 PLC system. It provides 8 analog inputs with 14-bit resolution, supporting voltage and current signals for precise measurement and monitoring in industrial automation applications.

Advantages

This module offers reliable and accurate analog signal acquisition with galvanic isolation between channels and the backplane bus, ensuring signal integrity and protection. Its compact design and DIN rail mounting simplify installation, while the diagnostic functions (wire break, overflow/underflow) enhance system maintainability.

Suitable for

• Industrial automation and process control systems
• Machine building and manufacturing
• Building automation and energy management
• Data acquisition and monitoring applications

Key specifications

• Product Type: Analog Input Signal Module
• Series Compatibility: SIMATIC S7-1200 PLC
• Number of Analog Inputs: 8
• Resolution: 14 bit
• Input Signal Types: Voltage, Current
• Voltage Input Ranges: +/-10V, +/-5V, +/-2.5V, +/-1.25V, 0-10V, 0-5V, 0-2.5V, 0-1.25V
• Current Input Ranges: 0-20mA, 4-20mA
• Isolation: Yes, between channels and backplane bus
• Supply Voltage: 24V DC (via backplane bus)
• Power Consumption: Max. 1.5 W
• Basic Error Limit (Voltage): +/- 0.1% (at 25 °C)
• Basic Error Limit (Current): +/- 0.2% (at 25 °C)
• Operating Temperature (Horizontal): 0 °C to 50 °C
• Operating Temperature (Vertical): 0 °C to 40 °C
• Mounting Type: DIN Rail
• Diagnostics: Wire break, overflow/underflow
• Firmware Version: G2 (Generation 2)

Recommendations

For optimal performance, use this module with a compatible SIMATIC S7-1200 CPU and ensure proper wiring and configuration according to the manufacturer's guidelines. The module is ideal for applications requiring high-accuracy analog input acquisition.