Basics of Datalogger (Eff) - Black Box of Indian Railway signal Now @Webi Class by CM Jha Sir

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Processor Based Data Logger

The status of various Railway Signal Control and interlocking relays are essentially to be logged in order to verify, diagnose its operation, maintenance and faults. Data logger logs the change of status of every relay connected to it. Logged data transmitted upon to the central place to generate various exceptions, reports and other information by application software.

Salient Features:

Micro-Processor based system

Maximum 4096 opto isolated digital inputs @ 16 mSec sampling and 96 individually isolated analog input voltage channels @ 1 Sec.

Non-volatile data storage (more than 26 lacks) in NAND Flash and can be retrieved into Memory Card.

LCD, LED and Key Board interface for User interaction

Printer interface for Hard copy of logged data

8 serial communication ports with high data rates

In built dual Modem for network

Suitable for different types of Communication media like

Main telecom cable

Quad Cable

Analog Channel of OFC, digital microwave and analog microwave 64KBPS data channel on OFC or digital microwave and E1 Data Channel with 2MBPS

Potential free relay contacts to control from central place

Audio – Visual alarms on exceptions and faults

Front End Processor:

It buffers Data between server and data logger network and sends data to CMU

Multiple serial ports (max 9 ports) to connect network in various points

Software filter for Redundant data

10 lacks events storage

Network Management of Data Loggers (NMDL)

Front end application software at central control place

status of all the data loggers in the network

Online status of digital/analog inputs

Data selective viewing

Online graphical mimic display of every station layout

Auto backup on exceeding configured size of data base.

On-Line Station Simulation

Supervisory System for easy Maintenance of Data logger Network.

On-line Asset-Failure Alarms.

Auto SMS of Asset Failure.

Auto Mailing Facility of Asset-Failure Reports.

On-line/Offline Yard Simulation.

Asset Lifetime Alerting.

Log of events Report.