ABB 500MTM02 (1MRB150020R1102) 8-Channel Temperature Measurement Module
Configurable Thermocouple/RTD Acquisition for ABB AC500 PLC Industrial Process Control
1. Core Product Overview
The ABB 500MTM02 (order code: 1MRB150020R1102) is a high-precision 8-channel configurable temperature measurement module exclusively designed for the ABB AC500 PLC series, optimized for real-time multi-point temperature signal acquisition, conditioning and conversion in industrial automation and process control systems. As a supply chain variant of the 500MTM02 base model, it retains identical core performance and compatibility—supporting thermocouples, 2/3/4-wire RTD/PT100/PT1000 and millivolt signals with software-configurable channels, no hardware modification required. Built with industrial-grade ruggedness, it integrates a 16-bit high-resolution ADC, full-channel electrical isolation, intelligent cold junction compensation (CJC) and industrial EMC/surge protection, operating stably in -20°C to +70°C harsh environments with strong electromagnetic interference, dust and temperature fluctuations. Fully compliant with ABB FBP (Flexible Bus Protocol), it achieves plug-and-play integration with all AC500 series CPUs, expansion couplers and power modules, serving as a core component for multi-point temperature monitoring and closed-loop control in critical industrial processes.
• Core Role: 8-channel industrial temperature signal acquisition; thermocouple/RTD signal conversion; AC500 PLC multi-point temperature monitoring; process temperature closed-loop control; equipment thermal status detection
• Model Info: 500MTM02 (base model); 1MRB150020R1102 (ABB official supply chain variant code); AC500 configurable temperature module
• Key Specs: 8 software-configurable channels; 16-bit ADC resolution; ±0.1°C core accuracy; 2.5kV channel-to-channel isolation; -20°C~+70°C operating temp
• Reliability: Intelligent CJC; real-time open/short circuit detection; 50/60Hz notch filtering; IP20 front protection; reverse polarity power protection
2. Sensing Performance & Configurable Channels
The 500MTM02 1MRB150020R1102 is equipped with a precision 16-bit ADC chip and high-stability signal conditioning circuit, delivering ±0.1°C measurement accuracy at 0~100°C and 0.01°C digital resolution, meeting the high-precision temperature monitoring requirements of chemical, metallurgy and power generation processes. All 8 input channels are independently software-configurable without hardware rewiring or modification, supporting mainstream industrial temperature sensors: Type J/K/T/E/R/S/B/N thermocouples, 2/3/4-wire RTD/PT100/PT1000 resistive sensors and 0-200mV millivolt temperature signals—enabling mixed sensor type deployment on a single module for diverse on-site needs. The module integrates built-in intelligent cold junction compensation (CJC) with ±0.2°C compensation accuracy for thermocouple channels, eliminating external compensation modules and simplifying system wiring. Adaptive 50Hz/60Hz notch filtering and low-pass noise reduction effectively suppress power line interference for weak temperature signals, ensuring accurate and stable data acquisition in high-interference industrial sites.
• Input Channels: 8 independent software-configurable channels; mixed sensor type support; no hardware modification required for signal switching
• Supported Sensors: J/K/T/E/R/S/B/N thermocouples; 2/3/4-wire RTD/PT100/PT1000; 0-200mV millivolt temperature signals
• Accuracy & Resolution: ±0.1°C (0~100°C); ±0.3°C full range; 0.01°C digital resolution; 16-bit high-precision ADC conversion
• Signal Conditioning: Intelligent CJC (±0.2°C); 50/60Hz adaptive notch filtering; low-pass noise reduction; factory pre-calibrated
3. Isolation Protection & Fault Diagnosis
The 500MTM02 1MRB150020R1102 adopts a full industrial isolation design to ensure reliable operation in harsh environments, with 2.5kV electrical isolation between each channel and 1kV isolation between channels and ground—effectively eliminating cross-talk between channels and ground loop interference common in industrial wiring. Each channel is equipped with multi-level protection functions: 30V DC overvoltage protection, IEC 61000-4-5 surge protection and IEC 61000-4-2 anti-static protection, preventing module damage caused by sensor wiring errors, external voltage surges or static electricity. The module integrates real-time intelligent fault diagnosis for all 8 channels, with automatic detection of sensor open circuit, short circuit, over-temperature and signal drift anomalies. Fault information is transmitted to the AC500 CPU in real time via the FBP bus, and each channel is equipped with an independent front-panel LED indicator (Normal/Fault) for visual fault status—enabling on-site maintenance personnel to quickly locate and resolve problems, significantly reducing industrial system downtime.
• Isolation Design: 2.5kV channel-to-channel isolation; 1kV channel-to-ground isolation; optical signal transmission; isolated channel power supply
• Industrial Protection: 30V DC overvoltage protection; IEC 61000-4-5 surge protection; IEC 61000-4-2 anti-static; full EMC compliance (IEC 61000-4)
• Fault Diagnosis: Real-time open/short circuit detection; sensor over-temperature alarm; signal drift monitoring; channel-level fault reporting to AC500 CPU
• Fault Indication: Independent LED per channel; module status LED; FBP bus fault feedback; non-volatile fault logging
4. AC500 Integration & Installation
The 500MTM02 1MRB150020R1102 is fully compatible with ABB FBP (Flexible Bus Protocol), achieving plug-and-play integration with all AC500 series CPUs (500CPU03/02/01), expansion couplers (500SCM01) and power communication modules (500CSP04)—supporting distributed I/O topologies for long-distance multi-point temperature acquisition in large-scale industrial plants. It features standard 35mm DIN rail mounting with a compact form factor (120×100×65mm), fitting into standard industrial control cabinets and distributed I/O enclosures without occupying extra space. The module uses detachable spring-type terminal blocks for fast, tool-free and reliable on-site wiring, supporting direct connection with thermocouple/RTD sensors without external signal conversion or amplification modules. Powered by 24V DC (18-30V) from the AC500 system, it has reverse polarity protection and ultra-low power consumption (<3W). The front panel is designed with clear multi-LED indicators for power, module operation, FBP bus status and 8 channel working conditions, realizing one-click visual system diagnosis for on-site maintenance.
• Protocol Compatibility: ABB FBP bus; plug-and-play with all AC500 CPUs/couplers; distributed temperature acquisition; hot expansion supported
• Mounting & Wiring: 35mm standard DIN rail; 120×100×65mm compact size; detachable spring terminal blocks; tool-free wiring; direct sensor connection
• Power Supply: 24V DC system power (18-30V); reverse polarity protection;<3W ultra-low power consumption; isolated channel power
• Operation & Diagnostics: Front-panel multi-LED indicators; online channel configuration via AC500 software; remote fault query; real-time temperature data transmission
5. Variant Note & Industrial Compliance
Variant Status: 1MRB150020R1102 is a supply chain variant of the 500MTM02 base model, with identical core performance, specs and AC500 compatibility—only minor batch/component variations for supply chain flexibility, fully interchangeable with other 500MTM02 variants (e.g., 1MRB150020R0712) for spares and system upgrade.
Key Industrial Sectors: Steel/metallurgy smelting; chemical/petrochemical process control; thermal/hydro/wind power generation; food/beverage/pharmaceutical processing; cement manufacturing; automotive heat treatment; power plant boiler monitoring; industrial furnace control.
Certifications & Compliance: IEC 61131-2 (industrial control); IEC 61010-1 (electrical safety); IEC 61000-4 (EMC/surge/anti-static); IEC 60068 (vibration/shock); CE/UL/RoHS certified; -20°C to +70°C operating temperature; IP20 front panel dust protection.
Spare Part & Warranty: ABB genuine original module; factory pre-calibrated for temperature accuracy; 18-month standard warranty; free online calibration tool for AC500 system; fully compatible with all AC500 firmware versions; technical support for sensor matching and system configuration.
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Technical Documentation | ABB 500MTM02 1MRB150020R1102 | AC500 8-Channel Configurable Temperature Measurement Module
