SPECICATION NO. ETI/PSI/144 (12/91) SPECIFICATION FOR ... - rdso

6.1.6 Data-logging printers
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6.1.6.1 Two alphanumeric dot-matrix printers with a printing speed or 189
characters per second shall be provided. The printer shall have 132 columns with facility
for friction roller and tractor paper feed. It shall be robust and noiseless.
6.16.2 Data-logging
a) Alarm/Event logging
Logging shall be done of the following:
All events such as signals and alarms, commanded and uncommanded
changes and limit violations of telemetered parameters shall be printed automatically by
the data-logger with date (year, month and day) and time of occurance (hours, minutes,
seconds and milli-seconds) stamp.
b) Diagnostics
The system shall provide diagnostic checks for faults in
(i) The SCADA equipment at the RCC,
(ii) In the communication lines and
(iii) at the controlled stations
These faults shall be printed out with details such as name of controlled
station, card number with date and time stamp.
c) On-demand facility
The facility shall be provided for the operator to obtain reports on-demand
through the keyboard. Such reports may include current status of bistate devices, signals
and alarms at the remote stations, communication failures, telemetry printout and other
information required.
d) Periodic printouts
The dataloggar shall give periodic printouts, whenever required by the
operator, as under:
(i) 15/30 minutes printout giving average values of all the analogue
parameters at TSSs and SPs during the last 15/30 minute period.