22. DISPLAYING AND SETTING DATA
A data protection key can be installed on the machine side for protection
of various NC data. The following three input signals are offered,
according to type of data to be protected.
D KEY 1
Allows input of tool compensation amount.
D KEY 2
Allows setting data input and macro variable input.
D KEY 3
Allows part program input and editing.
D KEY 4
Allows input of PMC data (counter, data table).
This function displays a history of the key and signal operations,
performed by the operator, upon the occurrence of a failure or alarm. The
history can also be displayed for previously generated alarms.
The following history data is recorded :
D MDI key/soft key operation sequences
Example : A to Z, <POS>, <PAGE↑>, [SF1]
D On/off status transitions of selected input and output signals
Example : G0000.7↑, SBK↑
D NC alarm information
Example : P/S0010
D Time (date, time) stamp
Example : 97/09/25
The history data can be output to an input/output device, connected via
the RS–232–C interface. Previously output history data can be input from
an input/output device.