Motorola MVME162PA-344SE VME Bus Single Board Computer Embedded Controller

MVME162PA-344SE  VME162PA344SE is a rugged 6U VME single-board computer originally manufactured by Motorola, now categorized as legacy GE Automation hardware. It adopts Motorola MC68040 CPU with integrated floating-point unit and second-gen Petra ASIC chipset, designed as the master central controller for VME64 industrial rack systems. The suffix SE represents the wide-temperature reinforced enhanced version, optimized for continuous operation under severe industrial vibration and temperature fluctuation environments.

This Motorola VME CPU board integrates complete memory arrays, multi-channel serial ports, optional Ethernet & SCSI interfaces, and four IndustryPack expansion slots for flexible I/O expansion. It supports mainstream real-time operating systems including VxWorks and QNX, widely deployed on vintage semiconductor thermal furnaces, power plant turbomachinery monitoring racks and railway signal control cabinets, serving as critical maintenance spare parts for obsolete VME distributed control platforms.

Main Specifications

• Brand: Motorola (subsequent GE Intelligent Platforms); Model: MVME162PA-344SE; Form Factor: 6U VMEbus Eurocard
• Processor: Motorola MC68040 microprocessor, 32MHz clock speed, built-in FPU floating-point coprocessor
• Memory Configuration: 16MB ECC SDRAM, 128KB battery-backed SRAM, 1MB onboard Flash firmware memory
• Storage & Clock: 8K×8 NVRAM with battery-powered real-time clock for fault log retention during power loss
• Communication Ports: Four EIA-232-D serial ports, optional 10/100Mbps Ethernet, SCSI storage interface
• Expansion Resources: Four 32-bit IndustryPack IP slots with independent DMA channels, VMEchip2 bus controller
• Timer & Safety: Six 32-bit hardware timers + dedicated watchdog timer for automatic system fault recovery
• Environmental Rating (SE Version): Operating temperature -40℃ ~ +70℃, reinforced anti-shock & anti-vibration circuit
• Diagnostic Features: Front panel LED status indicators, onboard POST self-test and serial debug firmware

Core Functions

• Act as system master controller of the entire VME rack, executing real-time control algorithms, production logic sequences and safety interlock protection programs.
• Implement high-speed A32/D32 VME backplane bus communication via DMA engine, synchronously collecting analog measuring signals and digital switch states from all slave I/O modules.
• Transmit furnace process curves, equipment operating parameters and historical fault logs to local HMI touch panels and remote upper monitoring hosts through Ethernet and serial console ports.
• Battery-backed SRAM and NVRAM preserve critical calibration data and failure records without external power supply, facilitating post-failure maintenance analysis.
• Hardware watchdog timer automatically triggers full system reset upon program crash or bus communication timeout to avoid unplanned production line shutdown.
• Four IndustryPack expansion slots support pluggable analog input, motion control and fieldbus IP modules to flexibly expand measurement and control channels without extra rack slots.

Application Scenarios

• Core CPU board replacement for Centrotherm solar diffusion furnaces and semiconductor vacuum thermal processing VME automation racks.
• Maintenance spare parts for steam/gas turbine machinery protection monitoring systems in thermal power and hydropower generating plants.
• Railway locomotive traction auxiliary control cabinets and subway signal interlock VME bus control system main computing unit.
• Retrofit and component overhaul for vintage industrial laser processing, printing and automated test VME control racks.
• Long-term backup spare inventory for electronics, photovoltaic and heavy energy industry factories equipped with legacy Motorola VME embedded control systems.
• Global aftermarket repair stock for obsolete VMEbus distributed control platforms deployed across manufacturing and power generation workshops.