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Service
Errors for write/read
access
F.F 00 x1 00 00
F.F 00 x2 00 00
F.F 00 x4 00 00
F.F 00 x8 00 00
D000030110 d – E650 Series 3 (ZMD400AT/CT, ZFD400AT/CT) – User Manual
4
2
1
8
Fig. 6.4
Group 2 of error messages
In the second group both digits can have values between 0 (no error mes-
sage) and F (all four error messages set). Significance:
Main memory access error (fatal error)
This error message appears if the main memory could not be accessed
several times during the start-up of the meter.
The meter may contain incorrect data and must be exchanged.
The same applies to messages where the bit is set:
F.F .. x3/x5/x7/x9/xB/xD/xF
Backup memory access error (non-critical error)
This error message appears if the backup memory could not be accessed
several times.
The meter may contain incorrect data and must be exchanged.
The same applies to messages where the bit is set:
F.F .. x3/x6/x7/xA/xB/xE/xF
Measuring system access error (non-critical error)
The meter supplies this message in the event of repeated failures when ac-
cessing the measuring system. It can sometimes occur if meters are in-
stalled with a completely discharged supercap which causes an incorrect
start-up behaviour.
Power-up meter and wait for a short time, then clear error via commu-
nication. If the error doesn't reoccur, it is recommended to equip the meter
with a battery. If the error reoccurs, replace the meter.
The same applies to messages where the bit is set:
F.F .. .. x5/x6/x7/xC/xD/xE/xF.
Time device access error (non-critical error)
The meter sets this message in the event of repeated failures when
accessing the time device. The calendar clock may display an invalid time
or date.
The error can be reset via communication. If it occurs repeatedly, the
meter must be exchanged.
The same applies to messages where the bit is set:
F.F .. .. x9/xA/xB/xC/xD/xE/xF.
Group 2 of error message
of E650 meters
Sum of values
Value in hexadecimal code
4
2
1
8
Main memory access error
Backup memory access error
Measuring system access error
Time device access error
Load profile memory access error
not used
Communication unit access error
not used
79/93
© Landis+Gyr AG
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