Siemens SINUMERIK 840D Programming Guide

13
Additional Functions 12.98
13.8 Pro
g
ram execution time/Work
p
iece counter
(
as from SW 5.2
)
13
840D
NCU 571
840D
NCU 572
NCU 573
FM-NC 810D 840Di

Siemens AG 2000. All rights reserved
13-460
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) – 04.00 Edition
$AN_SETUP_TIME
Time in minutes since the last setup;
is reset with SETUP
$AN_POWERON_TIME
Time in minutes since the last PowerOn;
is reset with POWERON
The following three timers are defined as
channel-specific system variables and can be
activated via machine data.
$AC_OPERATING_TIME
Total execution time in seconds of NC
programs in the automatic mode
$AC_CYCLE_TIME
Execution time in seconds of the selected NC
program
$AC_CUTTING_TIME
Tool operation time in seconds
$MC_RUNTIMER_MODE
Tool operation time in seconds
All timers are reset with default values when the
control is powered up, and can be read independent
of their activation.
Programming example
1. Activate runtime measurement for the active NC
program; no measurement with active dry run
feedrate and program testing:
$MC_PROCESSTIMER_MODE = 'H2'
2. Activate measurement for the tool operating time;
measurement also with active dry run feedrate and
program testing:
$MC_PROCESSTIMER_MODE= 'H34'
3. Activate measurement for the total runtime and
tool operating time; measurement also during
program testing:
$MC_PROCESSTIMER_MODE= 'H25'
13.8.2 Workpiece counter
Function
The "workpiece counter" function can be used to
prepare counters, e.g. for internal counting of
workpieces on the control. These counters exist as
channel-specific system variables with read and write
access within a value range from 0 to 999 999 999.

Siemens SINUMERIK 840D Specifications

General

Series	SINUMERIK 840D
Axes	Up to 31
Channels	Up to 10
Operating System	Windows-based
Power Supply	24 V DC
Control Unit Type	CNC
Interface	Ethernet, PROFIBUS
Display	TFT color display
Interpolation	Spline
PLC	Integrated PLC
Data Storage	CompactFlash, USB