MTL 8502-BI-DP Profibus DP Interface Module
The MTL 8502-BI-DP is a high-performance isolated analog input module with a built-in Profibus DP interface, designed for industrial process automation and hazardous area signal transmission. It converts 2 channels of analog input signals (4-20mA or 0-10V) to digital data and communicates them to a Profibus DP control system. The module provides electrical isolation between input signals and the Profibus DP bus, protecting the control system from interference and ground loops.
Technical Specifications
Product Type: Isolated analog input module / Profibus DP interface
Module Type: Bus Interface Module (BIM) for MTL8000 Series
Number of Analog Input Channels: 2 channels
Input Signal Types: 4-20 mA, 0-10 V (configurable)
Resolution: 16 bits
Accuracy: ±0.1% FS
Communication Interface: Profibus DP, RS485
Communication Speed: 9.6 kbps to 12 Mbps
Isolation Voltage: 250 V AC or 350 V DC (between input and bus)
Power Supply: 24 V DC ±10%
Power Consumption: ≤3 W
Operating Temperature: -20°C to +70°C
Storage Temperature: -40°C to +85°C
Relative Humidity: 5% to 95% (non-condensing)
LED Indicators: Power, Run, Fault status
Mounting: DIN rail
Protection Rating: IP20
Weight: Approx. 0.4 kg
Certifications: CE, ATEX, IECEx, RoHS
Intrinsic Safety Certification: Ex ia (for hazardous area field devices)
Profibus DP Integration
The 8502-BI-DP serves as a Bus Interface Module (BIM) for the MTL8000 Series intrinsically safe I/O system. It connects up to 24 MTL I/O modules to a Profibus DP master controller, providing real-time data transmission for distributed control applications. The module's high 16-bit resolution ensures accurate signal conversion, while the built-in self-diagnostic functions and LED status indicators enable easy monitoring of module and channel status. The 8502-BI-DP is designed for use in hazardous areas, with ATEX and IECEx certification for Ex ia applications, allowing field devices to be located in Zone 0, 1, or 2 hazardous areas.
Application Domains
The MTL 8502-BI-DP is used in petrochemical plants for remote I/O monitoring, oil and gas facilities for wellhead and pipeline instrumentation, pharmaceutical manufacturing for sterile process monitoring, power generation for boiler and turbine instrumentation, and metallurgical plants for furnace temperature monitoring.
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