| Product Type | Input/output module and accessories |
| Product Model | 6ES7531-7NF10-0AB0 |
| Input current | Current consumption, maximum value 240 mA; when powered by 24 V DC |
| Product Dimensions | 35 MM × 147 MM × 129 MM |
| Power Supply Voltage | Rated value (DC) 24 V Allowable range, lower limit (DC) 19.2 V Allowable range, upper limit (DC) 28.8 V Reverse polarity protection is |
| Weight | 300 g |
High-Performance Analog Input Module for S7-1500 Series: Model AI 8xU/I/RTD/TC ST, a multifunctional analog input module in the SIMATIC S7-1500 PLC system—supports voltage, current, RTD, and thermocouple signals, ideal for complex process control applications.
High Accuracy & Resolution: Uses 16-bit A/D conversion with effective resolution up to 15 bits + sign, and basic accuracy as low as ±0.3%, ensuring precise and stable signal acquisition.
Direct Temperature Measurement Support: Connects RTDs (Pt100/Pt1000) and thermocouples directly without external transmitters—enabling high-precision temperature measurement while saving cost and panel space.
Per-Channel Configuration: Each channel can be individually set for signal type, range, filter frequency, and temperature unit (°C/°F)—offering maximum flexibility for diverse sensors and processes.
Galvanic Isolation: All analog input channels are electrically isolated from the backplane bus—reducing noise interference and enhancing system stability in industrial environments.
