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Maintenance
Communication
Errors
Other Errors
6.2.1.1
Representation of Error Codes
i
D000029326 en g – E450 PLC 1-phase ZCX100Px – User Manual
Due to the temporary nature of communication errors they do not cause the
F.F register to be displayed. However communication errors do get stored
in the error register. They are cleared when communication is restored.
Communication errors do not usually require meter replacement.
These errors do not cause the F.F register to be automatically shown on
the display but are stored in the error register. The meter continues normal
operation and doesn't usually have to be replaced.
The error code is split up in four groups of two digits.
Each digit of the error code represents four errors (i.e. four bits of the error
register). The status of the four bits is shown in hexadecimal code i.e. the
single digits may show values between 0 (no error message set) and F (all
four error messages set).
Error codes are added
As all errors are shown in hexadecimal code, a single error can appear in
various ways depending on the presence of other errors.
Example:
Two errors are shown as:
Another two errors occur:
The register reads:
Byte 4
Error register
7
6
5
4
Valency
8
4
2
1
0 3
Error code
Fig. 6.1 Display of error codes
FF 01000200
FF 02000800
FF 03000A00
Byte 3
3
2
1
0
7
6
5
4
3
2
1
0
8
4
2
1
8
4
2
1
8
4
2
1
0 0
03000A00
Byte 2
Byte 1
7
6
5
4
3
2
1
0
7
6
5
4
8
4
2
1
8
4
2
1
8
4
2
1
0 A
0 0
© Landis+Gyr
47/54
3
2
1
0
8
4
2
1
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