Program Runtime/Part Counter; Program Runtime/Part Counter (Overview); Program Runtime - Siemens SINUMERIK 828D Programming Manual

14.9

Program runtime/part counter

14.9.1

Program runtime/part counter (overview)

Information on the program runtime and workpiece counter are provided to support the
machine tool operator.
This information can be processed as system variables in the NC and/or PLC program. This
information is also available to be displayed on the operator interface.
14.9.2

Program runtime

Function
The "program runtime" function provides internal NC timers to monitor technological
processes, which can be read into the part program and into synchronized actions via the
NC and channel-specific system variables.
The trigger for the runtime measurement ($AC_PROG_NET_TIME_TRIGGER) is the only
system variable of the function that can be written to and is used to selectively measure
program sections. This means that by writing the trigger into the NC program, the time
measurement can be activated and deactivated.
System variable
NC-specific
$AN_SETUP_TIME
$AN_POWERON_TIME
Channel-specific
$AC_OPERATING_TIME
$AC_CYCLE_TIME
Job planning
Programming Manual, 07/2010, 6FC5398-2BP40-0BA0
Meaning
Time since the last control power up with default
values ("cold restart") in minutes.
Is automatically reset to "0" every time the control
powers up with default values.
Time since the last normal control power up ("warm
restart") in minutes.
Is automatically reset to "0" every time the control
powers up normally.
Total runtime of NC programs in automatic mode in
seconds.
The value is automatically reset to "0" every time the
control powers up.
Runtime of the selected NC program in seconds.
The value is automatically reset to "0" every time a
new NC program starts up.
Additional functions
14.9 Program runtime/part counter
Activity
Always active
•
Activated via
•
MD27860
Only AUTOMATIC
•
mode
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