XYCOM XVME-684 Processor Module

Technical Specifications

Model:XVME-684

Brand:XYCOM

Product type:VMEbus PC/XT Compatible Dual-Slot Processor Module

Power supply:+5V,+12V,-12V VME backplane power

Bus interface:Standard VMEbus,bus master & slave,support VME interrupt IRQ0~IRQ7

Form factor:6U dual-height VME card,occupies 2 adjacent VME slots,dual-board construction

Weight:1.02kg

CPU:Intel 8088,software selectable 4.77MHz / 8MHz

Optional accessory:8087 math coprocessor socket

Memory:Dual-port DRAM,256KB standard,expandable up to 1MB

Graphics:CGA/MCGA compatible graphics controller

Storage:Floppy disk controller,ST506 hard disk interface

Onboard communication:2×RS232 serial port,1×Centronics parallel port

Other onboard interfaces:XT keyboard interface

VME addressing:A16/A24/A32,D08/D16/D32

Onboard indicator:FAIL,PASS LED;RESET switch

Operating temperature:0℃ ~ +70℃

Storage temperature:-40℃ ~ +85℃

Relative humidity:5%~95%,non-condensing

Certification:CE,UL

System compatibility

XVME-684 belongs to XYCOM XVME series industrial VME single board computer.

It installs in XYCOM VME chassis and cooperates with XVME series I/O modules.

Compatible with turbine,compressor and legacy DCS control systems via VME bus.

Commonly used for power plant,oil & gas,petrochemical old equipment maintenance and spare replacement.

Function

Act as controller of VME rack,runs legacy DOS/real-time operating system and early process control programs.

Intel 8088 processor executes control logic,data acquisition and simple calculation tasks.

Dual-port DRAM supports high-speed shared data exchange between local CPU and VME backplane.

CGA compatible graphics supports local display for on-site monitoring and debugging.

Integrated floppy and ST506 hard disk controller for system firmware and data storage.

Dual RS232 and parallel port for serial peripherals and printer connection.

Optional 8087 math coprocessor to boost floating-point computation.

Full VME bus master function,access all VME I/O modules on backplane,read sensor data and output control commands.

Support VME bus arbitration,system reset and seven-level VME interrupt management.

Onboard self-test for CPU,memory,graphics,storage,serial circuit,VME bus interface,fault state displayed via FAIL LED.

Installation

Power off VME chassis.

Insert XVME-684 dual 6U card into two adjacent empty VME slots,tighten front panel fixing screw.

Set base address,interrupt level and memory configuration via board jumpers.

Connect display,serial terminal or floppy/hard disk storage wiring.

Power on chassis,run BIOS and hardware self-test.

The module initializes and communicates with all I/O modules in VME rack.

Interface

VME P1,P2 backplane connector,front panel graphics,serial,parallel port,LED indicators and reset switch.

Feature

6U dual-slot VME single board computer,XYCOM XVME series.

Dual-board structure design,PC/XT compatible architecture,support earliest DOS industrial operating systems.

Dual-port DRAM for high speed VME shared memory data transmission.

CGA video output for local HMI without extra adapter.

Optional 8087 floating-point coprocessor for calculation enhancement.

Full VME bus master capability,support 32-bit VME addressing and data transmission.

Discontinued obsolete VME module,supply only for old production system spare replacement.

Vibration resistant PCB design,suitable for turbine control cabinet.

Diagnostic

FAIL LED on:CPU fault,memory error,graphics/storage failure or VME bus interface damage;

Cannot boot:check backplane contact,DRAM,BIOS setting and storage media;

Serial/parallel communication failure:check wiring,baud rate and transceiver circuit;

VME bus access error:check bus arbitration and interrupt jumper configuration.

Product Brief

XYCOM XVME-684 is legacy VMEbus 6U dual-slot processor module based on Intel 8088 processor with PC/XT compatible architecture.

It serves as controller for VME rack,widely used as spare part for turbine and compressor control,petrochemical and power plant old DCS renovation.

Disclaimer

All parameters are for reference only and not for quotation basis. Goods are scarce and will be powered on for inspection before shipment. Overseas delivery lead time 3-7 working days. This item is only used for equipment maintenance and retrofit.