Logic blocks
Function Blocks - FM 458-1 DP 3-3
Edition 03.2003
3.2 PAS7 Initiate process interrupt at the S7-CPU
PAS7
Supplementary interrupt info
DW IFO QF BO
error output
Reset error
BO RES
Trigger mode
BO TMB
Initiate interrupt
BO I
This function block, which initiates a process interrupt to the SIMATIC
S7-CPU, can only run with an FM 458-1 DP application module.
The function block initiates a process interrupt at the associated S7 CPU.
The IFO double word is transferred to the S7-CPU as supplementary
interrupt information.
NOTE
A process interrupt is only acknowledged after the process interrupt
OBs (organization block) has been executed on the S7-CPU.
The block does not wait for the acknowledgment. The OB is
parameterized in the HWConfig for the associated S7-CPU.
The process interrupt is only initiated, if the S7-CPU is not processing a
process interrupt from the FM 458-1 DP application module.
Output QF has the value 1, if a new process interrupt is initiated,
although the last process interrupt was still not acknowledged or the
block was not configured on FM 458-1 DP.
Output QF has the value 0, if the acknowledgment from the S7-CPU has
been received, or if input RES has the value 1.
The interrupt is initiated as a function of the input TMB:
• for TMB = 0, if a signal changes from 0 to 1 at input I, or.
• for TMB = 1, if any signal transition occurs at input I.
IFO
Supplementary interrupt information (default: 0)
RES
Reset error (default: 0)
TMB
Trigger mode, both edges (default: 0)
I
Initiate an interrupt (default: 0)
QF
Error output (default: 0)
Computation time [µs] FM 458-1 DP 3,3
Available online no
Can be configured in Interrupt tasks
Cyclic tasks
Executed in Normal mode
Special features -
Symbol
Brief description
Mode of operation
I/O
Configuringdata
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