User's Manual

ANSI Electric Meter v3.1 User’s Guide 21
 Display Advance: When pushed and released in less than 3 seconds, the
display immediately advances to the next item. After a change to a new item
due to the activation of the push button, the display shows the item until
either the button is pushed again or the regular scroll time (on time) expires,
whichever occurs first. Once the regular scroll time expires, the display
returns to its normal operation.
 Prepay Credit Alarm Silencing: When the audible prepay credit alarm is
activated (due to a low or exhausted prepay credit level) the button can be
pushed for any length of time to silence the alarm.
 Push Button Hold Time: When the button is pushed and held down for
longer than 3 seconds, the display changes to show the number of seconds
that the button has been held, and the ID code changes to “PTIM.” This
allows you to track how long the button has been held in order to activate a
desired function.
Self Tests and Diagnostic Messages
The meter performs a comprehensive self-test at power-up and periodically performs
additional diagnostics and self-tests, with messages created to indicate the
occurrence of alarm or error conditions. Some self-tests are performed every second,
minute, hour, daily, or weekly, and some self-tests are performed on power-up only.
Detected faults can be read by the Data Concentrator and transmitted to NES
System Software, and can also be read directly from the meter via the optical port
using the Provisioning Tool. Diagnostic or alarm flags are set for the specific
condition and must be cleared either via the optical port (using the Provisioning Tool)
or by NES System Software through the Data Concentrator. You can configure the
meter to show selected message codes on the display as cautions or errors.
Understanding Display Diagnostic Codes
The diagnostic codes are hexadecimal values, which will allow all possible diagnostic
events to be shown on the display simultaneously. If more than one error or caution is
occurring, the displayed characters are a combination of the error or caution values.
Diagnostic Event Descriptions
The following table lists the diagnostic events that can generate error or caution
messages. The Display Code column shows the value for each event, and is the value
shown on the meter display when only one event in each digit position is being
reported. When more than one event is being reported for the same digit position, the
displayed value is the sum of the event codes. Message codes are displayed on 2
screens, with scrolling between them occurring at the standard scroll time set for the
normal display sequence.
Error or Caution
Item
Display
Code
Description Self-Test
Schedule
Screen 1
Display Code Digit Position 8
Configuration Error 00000002 PLC communications IC initialization failed At power-up
System Reset 00000004 Watch-dog reset or event buffer overflow occurred. May
be due to momentary voltage interruption.
Upon
occurrence