Union Switch & Signal Microlok II - User Manual

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2004 Union Switch & Signal India. All Rights Reserved.
July 2005
PRINTED IN INDIA Revision Number: 1.3
UM-6800A
FUNCTIONAL DESCRIPTION
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Union Switch & Signal Microlok II Specifications

General

Brand	Union Switch & Signal
Model	Microlok II
Category	Control Systems
Language	English

Summary

Introduction

System Overview

System Description

Microlok II Hardware

Environmental

Specifies the operating environment for the Microlok II product, including temperature and humidity.

Physical

Describes the physical characteristics of the Microlok II system, including card file dimensions and mounting.

Cardfile

Details the Microlok II card file, a G64/96 bus based file that houses various boards.

CPU Board

Explains the CPU board, controlled by a Motorola microprocessor, housing executive and application software.

Power Supply Board

Describes the power supply board's functions, including voltage conversion and supplying power to vital outputs.

Physical I;O

Covers the physical input/output characteristics, chosen for railway and transit interface devices.

Vital Cut-Off Relay

Details the vital cut-off relay (VCOR) used to control power to vital outputs, managed by the CPU board.

Address Select PCB

Explains the address select jumpers used for board addressing and configuration.

Keying Plug

Describes the keying guides used to ensure correct board installation in card file slots.

Serial I;O

Microlok Protocol

Details the Microlok protocol, including serial stations, addresses, and data timeouts.

Genisys Protocol

Describes the Genisys protocol, covering serial stations, addresses, and data timeouts for non-vital functions.

Microlok II Software

Executive Software

Standard operating system software responsible for vital monitoring and control of the system.

Application Software

User-developed, application-specific logic for system configuration and operation.

Microlok II Vital Diagnostics

System Operating Modes

Normal Mode

The default mode where all outputs and application processing are active.

Selective Shutdown Mode

Mode entered when critical errors prohibit complete operations; vital outputs disabled.

User Selective Shutdown Mode

Mode where vital outputs are disabled, entered based on Application Logic.

Complete Shutdown Mode

Mode with no I/O or logic processing; vital outputs in the most restrictive state.

Reset Menu Mode

Mode where unit remains in initialization; no I/O or processing, vital outputs restricted.

Configuration Mode

Special non-operational mode for Application Configuration, with vital outputs restricted.

Boot Mode

Mode to load Generic System Software or Application Image into the system.

Logic Processing

System Logs

System Event Log

Records up to 5000 critical errors, warnings, and events, overwriting oldest entries.

System Error Log

Records up to 50 of the most recent critical system errors.

System User Data Log

Records user-specified events and state changes, capable of handling many Boolean/numeric changes.

System Merged Event Log

Combines error, warning, and event logs with graphic displays of parameters and events.

System Specification