15
Tables 04.00
15.2 List of s
stem variables
15
ï›™
Siemens AG 2000. All rights reserved
15-552
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) – 04.00 Edition
15.2.31 Timers
Identifier Type Description: System variable/value range/index Part pro Sync O S
$A_YEAR
INT $A_YEAR
System time, year
RS R 3
$A_MONTH
INT $A_MONTH
System time, month
RS R 3
$A_DAY
INT $A_DAY
System time, day
RS R 3
$A_HOUR
INT $A_HOUR
System time, hour
RS R 3
$A_MINUTE
INT $A_MINUTE
System time, minute
RS R 3
$A_SECOND
INT $A_SECOND
System time, second
RS R 3
$A_MSECOND
INT $A_MSECOND
System time, millisecond
RS R 3
$AC_TIME
REAL $AC_TIME
Time from the beginning of block in seconds
This variable can only be accessed from synchronized actions
RS R 2
$AC_TIMEC
REAL $AC_TIMEC
Time from the beginning of block in IPO clock cycles
This variable can only be accessed from synchronized actions
RS R 3
$AC_TIMER
REAL $AC_TIMER[n]
Timer – unit in seconds
Time is counted internally in multiples of interpolation cycle
cycle;
To start the counter variable, assign the value
$AC_TIMER[n]=<starting value>
To stop the counter variable, assign a negative value:
$AC_TIMER[n]=–1
The current time value can be read when the timer is running or
when it has stopped. When the timer is stopped by assigning the
value –1, the most up-to-date timer value is retained and can be read.
The dimension is defined in MD $MC_MM_NUM_AC_TIMER.
RS W
S
RW+ 4
$AC_PRTIME_M
REAL $AC_PRTIME_M "ProgramRunTIME-Main"
Set (initialize) the accumulated program runtime (main time)
W4
$AC_PRTIME_A
REAL $AC_PRTIME_A "ProgramRunTIME-Auxiliary"
Set (initialize) the accumulated program runtime (auxiliary time)
W4
$AC_PRTIME_M_
INC
REAL $AC_PRTIME_M_INC "ProgramRunTIME-Main-INCrement"
Increment the accumulated program runtime (main time)
W4
$AC_PRTIME_A_I
NC
REAL $AC_PRTIME_A_INC "ProgramRunTIME-Auxiliary-INCrement"
Increment the accumulated program runtime (auxiliary time)
W4
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