Metso D201832

• Power Input: 24 VDC ±10, rated power consumption 16 W
• Main Processing Chip: 32-bit industrial RISC dual-core processor
• Onboard Memory: 512 KB RAM, 2 MB Flash program storage
• Backplane Bus Master Control: Full ACN bus scheduling authority
• External Communication Ports: 1 × Ethernet RJ45, 1 × RS485 Modbus RTU
• Supported Logic Execution Cycle: Minimum 1 ms real-time control cycle
• Operating Temperature Range: -20 °C ~ +60 °C
• Storage Temperature Range: -40 °C ~ +85 °C
• Humidity Tolerance: 5%–95% non-condensing
• Protection Grade: IP20 module body, IP54 full rack assembly
• Dimensions: 220 H × 160 W × 35 D mm
• Net Weight: 0.85 kg

Functional Features

1. Dual-core 32-bit real-time processor executes full rack logic control algorithms
2. Complete master scheduling authority over all ACN backplane I/O modules
3. Onboard large-capacity Flash memory stores control logic programs and system configuration
4. Dual independent communication ports for upper DCS and local field device connection
5. Hardware multi-level watchdog circuit for automatic fault reset under program deadlock
6. Front panel multi-group LED indicators for running, fault, communication, and power status
7. Supports online program download without rack power shutdown

Performance Parameters

• Logic Execution Speed: 0.1 μs per basic logic instruction
• Max Supported Rack I/O Channel Count: 128 combined analog/digital channels
• Ethernet Communication Rate: 10/100 Mbps auto-adaptive
• Surge Withstand Capacity: 2 kV ESD contact discharge, 4 kV EFT
• Vibration Resistance: 10–150 Hz, 1 g continuous operation
• Max Standard Field Wiring Distance: 100 m shielded cable

Material Composition

• PCB Substrate: FR4 high-Tg industrial multi-layer fiberglass circuit board
• Communication Connectors: Industrial shielded gold-plated RJ45 and RS485 terminals
• Processor Core: Wide-temperature grade automotive dual-core RISC chip
• Shield Frame: Single-layer cold-rolled steel internal circuit shielding
• Mounting Frame: Black extruded aluminum alloy hard anodized anti-corrosion coating

Structural Characteristics

• Standard 1U dual-latch plug-in rack master slot dedicated structure
• Front panel partitioned LED indicator area: power, run, fault, Ethernet, RS485 status
• Rear gold finger connector full ACN backplane bus master interface
• Independent internal compartment layout for processor core circuit and communication circuit
• Built-in high-efficiency heat dissipation aluminum fin for core chip temperature control

Working Principle

Advantage Highlights

1. Dual-core high-speed processor supports ultra-short 1 ms real-time control cycles
2. Single module manages full rack up to 128 I/O channels, reducing rack quantity investment
3. Online program download function eliminates production shutdown during logic modification
4. Multi-layer hardware watchdog circuit ensures uninterrupted system operation
5. Full electrical compatibility with all Metso D2014XX, D2018XX, D2019XX series slave modules
6. Compact single-slot master design maximizes rack space utilization

Applicable Industries

Installation Requirements

1. Install exclusively in dedicated master slot of Metso ACN CS 8/16-slot standard rack
2. Maintain 10 mm vertical ventilation gap between adjacent modules for heat dissipation
3. All external communication cables adopt fully shielded industrial wiring
4. Cabinet PE grounding resistance ≤ 4 Ω to suppress communication interference
5. Stabilize rack backplane 24 VDC power before hot-swapping master module
6. Control cabinet internal continuous operating temperature controlled below 55 °C

Operation & Maintenance Precautions

1. ESD anti-static wrist strap mandatory during module disassembly and wiring
2. Complete backup of control logic program before module replacement
3. Conduct quarterly inspection of Ethernet port contact dust accumulation
4. Do not install adjacent to high-power frequency converter modules
5. Spare master modules stored in sealed anti-static packaging with desiccant packs
6. Cut off external communication cable power before replacing damaged communication ports