VMIC VMIVME-7452 Storage Module

Module Feature

VMIVME-7452, part number 332-037452-645 C, is a 6U single-slot VMEbus storage module developed by VMIC (GE Fanuc / Abaco Systems). This board integrates IDE hard disk and 3.5-inch floppy disk controller with on-board mechanical carrier, supporting installation of 2.5 inch IDE hard disk and standard floppy drive inside the VME card frame. It works as VME slave device, the VME host can directly access onboard storage media via VME bus address mapping. The carrier provides shock damping protection for mechanical disks to adapt to vibration in industrial rack environment. Front panel is equipped with activity LED for disk read/write status indication. Built-in BIT diagnostic circuit monitors disk power supply, drive presence and read/write error events, fault information can be read through VME status register. Rugged Eurocard PCB with conformal coating,shock and vibration screened for power plant cabinet environment,widely used in gas/steam turbine VME control chassis local log storage,aerospace ground test bench and hardware-in-loop real-time simulation VME chassis.

Working principle

VME CPU board sends read and write commands to VMIVME-7452 through VME bus. Onboard FPGA converts VME bus signals into standard IDE and floppy control signals to operate the installed disk drives. Disk data is cached temporarily by onboard buffer and transmitted back to VME host. BIT circuit continuously checks disk power, drive detection and media access errors, and updates status register and activity LED state.

Onboard components

VME interface FPGA,IDE & floppy disk controller,data buffer register,mechanical disk carrier with shock absorber,power regulation circuit,BIT fault monitoring logic,VME J1/J2 edge connector,front-panel status LED array.

LED indicators

Front panel LED indicators for disk activity and module fault alarm.

Hardware self-diagnosis

Visual inspection of PCB,components and solder joints;board ID register readback verification;disk presence detection test;read/write access test for IDE and floppy media;VME A16 read/write communication validation.

Programming software

VMIC storage driver library and configuration utility,supports VxWorks,Linux and QNX real-time operating systems;software tool for disk mounting,media format operation and BIT error log reading.

Electrical & Process Parameters

Model: VMIVME-7452,332-037452-645 C Brand: VMIC Device type: 6U VMEbus IDE hard disk & floppy storage module Bus standard: VMEbus, A16 short addressing, D08/D16/D32 data transfer Storage support:2.5 inch IDE hard disk,3.5 inch floppy disk drive Control mode: VME slave access,onboard shock-damped disk carrier,BIT disk health monitoring,overcurrent protection Power supply: +5 V, +12 V from VME backplane Cooling: Convection cooling Protection: Disk power overcurrent cutoff,shock absorption for mechanical media Mounting: Standard single-height 6U VME front panel ejector locking Protection class: PCB with optional conformal coating

Mechanical & Structure

Mounting: Single-slot 6U VME Eurocard Protection class: PCB with optional conformal coating

Environmental

Operating temperature:0℃ ~ +70℃ Storage temperature:-40℃ ~ +85℃ Ambient humidity:20~80% non-condensing Certification: CE compliant Status: VMIC 6U VME single-slot IDE hard disk and floppy local storage board

Installation

Follow ESD safety procedure before handling.Fully power off VME chassis.Insert VMIVME-7452 into vacant 6U VME slot and lock front panel ejector latches.Install IDE hard disk and floppy drive into onboard carrier.Set jumpers for disk master/slave address.Power on chassis,load VMIC storage driver,run BIT disk diagnostic before commissioning.

Interface

VME J1/J2 backplane connector,onboard IDE and floppy drive headers,disk activity status register pins.

Diagnostic

Board undetected: poor VME backplane contact,damaged edge connector or incorrect A16 address setting. Disk not detected: power rail failure or master/slave jumper misconfiguration. Disk read/write error: bad disk media or IDE controller hardware fault. Fault LED lit: overcurrent or disk communication timeout.

Product Brief

VMIC VMIVME-7452 332-037452-645 C 6U VME storage module,onboard shock-damped IDE hard disk and floppy disk carrier with BIT disk health monitoring,provides local persistent data storage for turbine control and aerospace hardware-in-loop simulation VME racks.