Parameters Parameter Specification Product Range Modicon TM7 Distributed I/O System Module Type Analog Input Module (for RTD - Pt100/Pt1000) Commercial Reference TM7BAI4PLA Number of Channels 4 Sensor Type Resistance Temperature Detector (RTD) Supported RTD Types Pt100 (according to IEC 60751), Pt1000 Connection Modes Configurable per channel: 2-wire, 3-wire, or 4-wire (for optimal accuracy compensation). Measurement Range Typically -200°C to +850°C for Pt100. Resolution 0.1°C Accuracy Typically ±0.2°C (for Pt100, within a specified temperature range, e.g., 0°C to 100°C). Accuracy depends on connection mode (4-wire being the best). Excitation Current Low-current excitation to minimize sensor self-heating. Wire Break Detection Yes, for all connection modes. Update Time Typically 100 ms per channel (configurable). Filtering Configurable digital filtering for signal stabilization. Isolation Channel-to-channel and channel-to-bus isolation (typically 500 V AC). Connection Removable screw terminal block or pluggable connector. Diagnostic LEDs Green LED per channel (indicates active/valid measurement). Red LED per channel (indicates fault, e.g., wire break, sensor error). Module STATUS LED (system status). Communication Interface Integrated CANopen or Modbus TCP (via the TM7 communication head). Power Supply 24 V DC (via integrated power connector). Operating Temperature -25°C to +70°C Storage Temperature -40°C to +85°C Relative Humidity 10% to 95% (non-condensing) Protection Class Typically IP67 (when connectors are properly mated). Mounting Direct mounting or on a DIN rail (with adapter). Certifications CE, UL, cUL, RoHS compliant.