Omron CJ1M-CPU series - Page 21

15
(2) Functional differences for Interrupt inputs
The following operation differences exist between CJ1M / CJ2M in the interrupt input function. If used,
check that the operation is not affected.
Interrupt Inputs
CJ1M
CJ2M
Description
Update method for
interrupt counter SV
(Counter Mode)
Updating interrupt
counter SV in Auxiliary
Area
Updating interrupt
counter SV in Auxiliary
Area
and then executing
M
SKS again to enable
interrupts
Add MSKS instruction, if
you use this operation.
Update method for
interrupt counter PV
(Counter Mode)
･ Updating with INI
instruction
･ U
pdating interrupt
counter PV in Auxiliary
Area
Updating with INI
instruction
Change to INI instruction,
if you use Auxiliary
for
updating.
Updating timing for
interrupt counter PV
(Counter Mode)
･Once per count
･
When PRV i
nstruction is
executed
･Every cycle
･
When
count completion
interrupt occurs
･W
hen PRV instruction is
executed
Make sure that it does
not affect operation.
If it is affected, it is
necessary to change the
program etc.
Operation of interrupt
counter when interrupts
are disabled with DI
instruction
Counter operation not
countinued
Counter operation
continued, but int
errupt
wil
l not occur at count
completion
Make sure that it does
not affect operation.
If it is affected, it is
necessar
y to change the
program etc.