XYCOM XVME-428/2 Intelligent Asynchronous Serial Communication Module

Technical Specifications

Model:XVME-428/2

Brand:XYCOM

Product type:VMEbus Intelligent Asynchronous Serial Communication Module(IASCM)

Power supply:+5V VME backplane power

Bus interface:Standard VMEbus,slave communication,support VME interrupt

Form factor:6U dual-slot VME card

Weight:0.62kg

Onboard processor:10MHz Motorola 68000

Serial channels:8 independent asynchronous serial ports,each configurable to RS232C,RS422A or RS485 signal level

Baud rate:Programmable 50 ~ 19200bps

Working mode:Character I/O or record I/O controlled by onboard firmware

VME addressing:A16/D16 compatible,jumper selectable base address

Interrupt:Support VME interrupt triggered by serial transmit/receive event

Operating temperature:0℃ ~ +55℃

Storage temperature:-40℃ ~ +85℃

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

Certification:CE,UL

System compatibility

XVME-428/2 belongs to XYCOM XVME series intelligent serial communication module.

It installs in XYCOM VME chassis and cooperates with XVME series CPU and 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

Multi-channel serial communication expansion for VME control rack.

8 independent serial ports,each channel can be switched to RS232C,RS422A or RS485 to connect field instruments,terminals and controllers.

Onboard 10MHz 68000 processor runs local firmware,handles serial data buffering and protocol processing independently to reduce host CPU workload.

Support character mode and record mode I/O,adapt to different serial data transmission requirements.

Support hardware interrupt to notify VME host CPU after data receiving or transmission completion.

Transmit and receive serial data between field serial devices and VME main CPU over VME backplane.

Onboard self-test for onboard processor,serial transceiver circuit,data bus and VME bus interface fault inspection.

Installation

Power off VME chassis.

Insert XVME-428/2 card into empty dual-slot VME position,tighten front panel fixing screw.

Set base address and interrupt level via board jumpers.

Connect field serial wiring to front panel connector.

Power on chassis,run hardware self-test.

VME CPU scans bus,identifies the board and starts serial communication.

Interface

VME P1 backplane connector,front panel serial wiring terminal,LED indicators:PASS,FAULT.

Feature

Dual slot 6U VME intelligent serial board,XYCOM XVME IASCM series.

8 configurable serial interfaces,support RS232C,RS422A and RS485 three signal types,differential bus mode for multi-drop field network.

Local 68000 intelligent kernel offloads serial communication tasks from VME host processor.

Two firmware I/O modes:character I/O and record I/O.

Programmable baud rate for each individual channel.

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

Vibration resistant PCB design,suitable for turbine control cabinet.

Diagnostic

FAULT LED on:onboard processor or serial transceiver damage,VME bus communication failure;

Cannot be identified by CPU:check VME backplane contact and base address jumper setting;

Serial no communication:check channel signal level configuration,wiring,baud rate and parity;

Intermittent data loss:check cable shielding,grounding and bus terminal resistor for RS485.

Product Brief

XYCOM XVME-428/2 is legacy VMEbus intelligent asynchronous serial communication module with 8 configurable serial ports,support RS485 multi-drop bus.

It provides multi-channel serial data interaction for VME control 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.