XYCOM XVME-401 Serial Communication Module

Technical Specifications

Model:XVME-401

Brand:XYCOM

Product type:VMEbus Quad RS422A/RS485 Serial Communication Module

Power supply:+5V @1.4A typical,max 1.6A; +12V @100mA typical,max 110mA

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

Form factor:Single-height 6U VME card

Weight:0.33kg

Serial channels:4 independent RS422A/RS485 ports,support full-duplex RS422A and half-duplex RS485

Controller chip:Dual Zilog Z8530 SCC serial communication controller

Baud rate:50~19200bps asynchronous,up to 57.6KB/s; synchronous up to 500KB/s

Modem signals:RTS,CTS,DCD,DTR for each channel

Address space:1K short I/O address space,jumper selectable base address

Interrupt:7 selectable VME interrupt levels,16 independent interrupt vectors

Operating temperature:0℃ ~ +65℃

Storage temperature:-40℃ ~ +85℃

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

Certification:CE,UL

System compatibility

XVME-401 belongs to XYCOM XVME series 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

Long-distance serial communication expansion for VME control rack.

4 independent serial channels,support RS422A full-duplex and RS485 half-duplex mode,realize data exchange with remote field instruments and controllers.

Dual Z8530 SCC chip,support asynchronous,synchronous and bit-oriented communication protocols.

Each channel integrates complete modem control signals,suitable for multi-drop bus connection.

Independent baud rate generator for every port,flexible baud rate configuration.

Support hardware interrupt when data receive/transmit complete,reduce host CPU load.

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

Onboard self-test for serial controller,data bus and VME bus interface fault inspection.

Installation

Power off VME chassis.

Insert XVME-401 card into empty single-height VME slot,tighten front panel fixing screw.

Set base address and interrupt level via board jumpers.

Connect serial devices to front JK1 and JK2 25pin D-sub connectors.

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 JK1,JK2 25pin D-sub connectors,LED indicators:PASS,FAULT.

Feature

Single height VME 4-channel RS422A/RS485 serial board,XYCOM XVME series.

Differential signal transmission,strong anti-interference,support long distance field wiring.

Dual Z8530 SCC serial controller,multiple communication protocol support.

Each port equipped with full modem handshake signals,reliable serial transmission.

Independent programmable baud rate for each channel.

VME slave interface,easy plug-in installation.

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:serial controller damage or VME bus communication failure;

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

Serial no communication:check RS422/485 wiring,baud rate,parity and terminal resistor setting;

Intermittent data loss:check cable shielding,grounding and bus terminal matching.

Product Brief

XYCOM XVME-401 is legacy VMEbus quad RS422A/RS485 serial communication module.

It provides multi-channel long-distance differential 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.