Landis+Gyr ZMQ202, User Manual

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6.3 Errors
Errors are graded according to their severity and are classified as Fatal
Errors, Alarms and Operational Indications. The type of error that has
occurred can be established from the error information on the meter as
follows:
Error Type Term according
to IEC870-5
Display Alarm LED Alarm Output
Fatal Error ---- FF and error code Off Closed
(OK = contact open)
Alarm
Error Indication FF and error code in
rolling display
Entry in Event Log
(if activated by
parameter setting)
On Closed
(for 1..9 seconds or
until the alarm is
cleared, depending
on parameter
setting)
Operational
Indication
Warning message FF and error code in
rolling display (with
some operational
indications)
Entry in Event Log
(if activated by
parameter setting)
Blinking
(if activated
by parameter
setting)
Closed, while the
event is present
(if activated by
parameter setting)
When two or more errors occur simultaneously, the hexadecimal code
values are added.
6.3.1 Fatal Errors
Errors that prevent the meter from performing the measuring function are
classified as Fatal Errors.
When a Fatal Error occurs, the meter must be changed. Refer to Chapter 4
for how to Install / De-install a meter,
page 41
.
Fatal Errors are shown on the display and in the event log (depending on
parameter settings) as follows:
Display Description Event log number
FF 00010000 Main memory (RAM) 73
FF 00020000 FLASH memory 74
FF 00000100 ROM microprocessor 81
FF 00000200 Back-up data (FLASH) 82
FF 00000400 Parameter (FLASH) 83
FF 00000040 FLASH identifier not valid 95