Error displays and counter
Error memory
The occurrence of exceptions is stored with date and time. To this end there is a
FIFO memory with 16 entries. Beside the three fixed defined values, 4 additional
objects can be recorded in the error memory.
Value list of ru52 system date when the error occurred
Value list of ru53 system time when the error occurred
Error list of ru01 exception state
List of the defined data in ud17
List of the defined data in ud18
List of the defined data in ud19
List of the defined data in ud20
Selection of the data for ud13
Selection of the data for ud14
Selection of the data for ud15
Selection of the data for ud16
Operating hours counter modulation on
The above table contains only the parameters whose recording appears to be most
useful in most cases. In principle, the address of each parameter can be entered in
ud17...ud20.
When a value is entered in the history data selector, the corresponding error
memory is overwritten with 0. The latest entry is always stored in index 1, the old-
est entry is stored in index 16 which is deleted with the next error.
The standardisation of the corresponding parameter must be observed for the in-
terpretation of the values in ud13 … ud14
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