Additional functions
14.9 Program runtime/part counter
Job planning
Programming Manual, 07/2010, 6FC5398-2BP40-0BA0
687
14.9.3 Workpiece counter
Function
The "Workpiece counter" function makes available various counters which can be used in
particular internally in the control to count workpieces.
The counters exist as channel-specific system variables with read and write access in a
range of values from 0 to 999,999,999.
System variable Significance
$AC_REQUIRED_PARTS Number of workpieces to be produced (setpoint number of
workpieces)
In this counter the number of workpieces at which the actual workpiece
count ($AC_ACTUAL_PARTS) will be reset to "0" can be defined.
$AC_TOTAL_PARTS Total number of completed workpieces (actual workpiece total)
This counter specifies the total number of all workpieces produced
since the start time. The value is only automatically reset to "0" when
the control powers up with default values.
$AC_ACTUAL_PARTS Number of completed workpieces (actual workpiece total)
This counter registers the total number of all workpieces produced
since the start time. On condition that $AC_REQUIRED_PARTS > 0,
the counter is automatically reset to "0" when the required number of
workpieces ($AC_REQUIRED_PARTS) is reached.
$AC_SPECIAL_PARTS Number of workpieces selected by the user
This counter supports user-specific workpiece counts. An alarm can be
defined to be output when the setpoint number of workpieces is
reached ($AC_REQUIRED_PARTS). Users must reset the counter
themselves.
Note
ll workpiece counters are set to "0" when the control powers up with default values and can
be read and written independent of their activation.
Note
Channel-specific machine data can be used to control counter activation, counter reset
timing and the counting algorithm.
Note
Workpiece counting with user-defined M command
Machine data can be set so that the count pulses for the various workpiece counters are
triggered using user-defined M commands rather than the end of the program (
M2/M30).
References
For further information about the "Workpiece counter" function see:
● Function Manual, Basic Functions; BAG, Channel, Program Operation, Reset Response
(K1),Chapter: Workpiece counter
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