Siemens SIMATIC S7-1200

Extended instructions
9.5 Interrupts
S7-1200 Programmable controller
426 System Manual, V4.2, 09/2016, A5E02486680-AK
9.5.2.2
QRY_CINT (Query cyclic interrupt parameters)
Table 9- 103
QRY_CINT (Query cyclic interrupt)
LAD / FBD
SCL
Description
ret_val := QRY_CINT(
ob_nr:=_int_in_,
cycle=>_udint_out_,
phase=>_udint_out__,
status=>_word_out_);
Get parameter and execution status from a cyclic
interrupt OB. The values that are returned existed
at the time QRY_CINT was executed.
Table 9- 104 Data types for the parameters
Parameter and type
Data type
Description
OB_NR
IN
OB_CYCLIC
OB number (accepts symbolic name like OB_MyOBName)
RET_VAL
OUT
Int
Execution condition code
CYCLE
OUT
UDInt
Time interval, in microseconds
PHASE
OUT
UDInt
Phase shift, in microseconds
STATUS OUT Word Cyclic interrupt status code:
• Bits 0 to 4, see the STATUS table below
• Other bits, always 0
Table 9- 105 STATUS parameter
Bit
Value
Description
0
0
During CPU RUN
1
During startup
1
0
The interrupt is enabled.
1
Interrupt is disabled via the DIS_IRT instruction.
2 0 The interrupt is not active or has elapsed.
1
The interrupt is active.
4 0 The OB identified by OB_NR does not exist.
1
The OB identified by OB_NR exists.
Other Bits
Always 0