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Checksum errors
F.F 00 00 x1 00
F.F 00 00 x2 00
F.F 00 00 x4 00
F.F 00 00 x8 00
D000062026 en a – E650 Series 4 – ZMD400AT/CT, ZFD400AT/CT – User Manual
8
4
2
1
Figure 77. Group 3 of error messages
The first digit in the third group can have the value 0 (no error message) or
1 (error message set).
The second digit can have values between 0 (no error message) and F
(all four error messages set). Significance:
Program checksum error (fatal error)
The meter does not operate and must be exchanged.
The same applies to messages where the bit is set:
F.F .. .. x3/x5/x7/x9/xB/xD/xF ..
Backup data checksum error (critical error)
This error message appears when the backup data checksum test fails.
Load profile data will be marked in the status code (bit 2 "corrupted
measurement" and bit 0 "critical error" set). 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 ..
Parameter checksum error (critical error)
This error message appears when the parameter checksum test fails.
Load profile data will be marked in the status code (""bit 0 "critical error"
set). The meter may contain incorrect data and must be exchanged.
The same applies to messages where the bit is set:
F.F .. .. x5/x6/x7/xC/xD/xE/xF ..
Load profile 1 checksum error (non-critical error)
Load profile 1 data of the defective memory area will be marked in the
status code (bit 2 "corrupted measurement" set).
The error can be reset via communication. Reset the load profile first
and then the error. If it occurs repeatedly, the meter must be replaced as
soon as possible.
The same applies to messages where the bit is set:
F.F .. .. x9/xA/xB/xC/xD/xE/xF ..
Group 3 of error messages
of E650 meters
Sum of values
Value in hexadecimal code
8
4
2
1
Program checksum error
Backup data checksum error
Parameter checksum error
Load profile 1 checksum error
Stored values checksum error
Event log checksum error
Calibration data checksum error
Load profile 2 checksum error
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