MTL 8502-BI-DP bus interface module

Specific Parameters

Electrical Parameters

Input Voltage: 24V DC (±10% fluctuation range)

Maximum Load Current: 2A (continuous output)

Power Acquisition Method: Obtained from MTL 8000 series carrier module

Isolation Voltage: 2.5kVrms (between signal and power supply, no breakdown for 1 minute)

Signal Isolation Type: Optoelectronic isolation (digital signal channel)

Communication Parameters

Communication Protocols: Profibus-DP (compatible with DP V1/V2 versions), HART protocol (process variable transmission)

Maximum Communication Rate: 6 Mbps (rate adjustable via host configuration)

Maximum Transmission Distance: 200 meters (without repeater, using shielded twisted pair)

Interface Type: RS485 (differential signal transmission, supporting half-duplex mode)

Supported Nodes: 1 Profibus-DP master station, 24 slave stations (I/O modules)

Diagnostic Information Transmission: Supports Profibus extended diagnostics, including 8 types of status codes such as module faults and channel abnormalities

Environmental Parameters

Operating Temperature Range: -40℃ to +70℃ (wide-temperature design, suitable for extreme working conditions)

Storage Temperature Range: -40℃ to +85℃ (no condensation)

Relative Humidity: 5% to 95% (non-condensing, when temperature ≤40℃)

Protection Class: IP67 (module body, dustproof and waterproof, usable in humid environments)

Vibration Resistance: Complies with IEC 60068-2-6 standard (10Hz-2000Hz, acceleration 5g, 30 minutes per axis direction)

EMC Compliance: Emission meets EN 61000-6-4, immunity meets EN 61000-6-2

Physical Parameters

Mounting Type: 35mm standard DIN rail mounting / panel screw fixing

Overall Dimensions (L×W×H): 102mm×76mm×25mm (excluding connector protrusions)

Net Weight: Approximately 0.3kg

Connector Type: M12 8-pin industrial connector (signal interface), Phoenix terminal (power interface)

Housing Material: Glass fiber reinforced nylon (flame retardant grade UL94 V-0)

Product Performance

High-Speed Data Transmission Capability: The maximum communication rate of 6 Mbps enables real-time data interaction within 1ms, meeting the millisecond-level control requirements of scenarios such as precision chemical industry and automated production lines, with a data transmission bit error rate ≤10⁻¹².
Strong Anti-Interference Performance: The optoelectronic isolation and differential signal transmission design can still maintain signal integrity in strong electromagnetic environments such as inverter clusters and high-voltage equipment, ensuring no loss or error of I/O data.
Comprehensive Diagnostic Function: Real-time monitoring of the working status of 24 I/O modules through Profibus extended diagnostics, with a fault response time ≤100μs, supporting remote reading of fault codes without on-site disassembly and inspection.
Wide Environmental Adaptability: The operating temperature range of -40℃ to +70℃ and IP67 protection class allow direct installation in outdoor control cabinets or humid workshops without additional temperature control or protection measures.
Flexible Expansion Capability: A single module supports cascading of 24 I/O modules, and can be expanded to up to 3 branch links through the Profibus-DP bus, adapting to the networking needs of automation systems of different scales.