Bosch CL300 - Cyclic Program Execution; Interrupt−Controlled Program Execution

SoftwareDescription
FlexibleAutomation
5−12
5.3.1 Cyclic Program Execution
The modules of the user program are executed according to the se
quence specified in the OM1 organizational module. OM1 is automati
cally called by the system after start−up.
OM1
CM
CM
CM
CM
CM
EP
I/OUpdate
PM1
EM
PM8
EM
PM5
EM
PM4
EM
PM3
EM
.
.
PM1
PM3
PM8
PM4
PM5
Fig.5−7Cyclic Program Execution
5.3.2 Interrupt−controlled Program Execution
When a positive edge of one of the special interface input interrupt sig
nals EI1.0−EI1.2 occurs, cyclic program execution is interrupted after
the current command has been executed, and another organizational
module, OM2, OM3, or OM4 with a fixed allocation to the interrupt input is
started. Interrupt input priority is EI1.0, EI1.1 and EI1.2.
In this organizational module, the user can program the desired re
sponse to the interrupt signal. Further interrupts are disabled, but can be
enabled using the PLC command IF". After interrupt signal processing,
cyclic program execution is resumed at the point of interruption.