9 Examples 01.91
9.1.3 Description of the PLC program
9.1.3.5 Interface for the operating example
DB 146 includes the interface for data distributor and loading operation/unloading operation.
Signals from operator panel:
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DB 146, DW 1
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Disable
loading/unloading
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Acknowledgement
loading, negative
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15 14 13 12 11 10
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Acknowledgement
loading, positive
Disable loading/unloading
The user can disable loading/unloading procedures by setting a static "1" interface signal.
Acknowledgement loading, positive
This signal must be assigned if the data were transferred from the loading line to a magazine
location and the data distributor has to read in the next tool block.
Acknowledgement loading, negative
This signal must be assigned if "Loading with operator guidance" is to be aborted or
terminated.
Signals for user:
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Address key
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Comment
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DB 146, DW 2
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a
Interface for
DW 2...DW 5 valid
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15 14 13 12 11 10
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No empty loc. found
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Load location
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Unload location
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Job running
Interface DW 2...DW 5 valid
This bit is set to "1" by the data distributor for the duration of one cycle when the signals to
the user (DW 2...DW 5) have been updated.
9–30
© Siemens AG 1991 All Rights Reserved 6FC5 197-0AA40-1BP1
SINUMERIK 840/880 (PJ)
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