Pc Operation Flowchart - Omron SYSMAC C500 Installation Manual

Introduction
PC Operation
Flowchart
Sets error flag and
lights indicator
Alarm
Error or alarm?
Error
Power application
Clears data areas and re-
sets System counters
Checks I/O Unit connection
Resets watchdog timer
Checks hardware and
program memory
No
Check OK?
IR data to Output Units
Processes Remote I/O
Resets watchdog timer
Services peripheral devices
Has the application program
been completely executed?
Yes
Resets watchdog timer
Data from Input
Units to IR Area
Resets watchdog
timer and application
program counter
Executes the program
End of Program?
Yes
No
Mathematical
processes
Section 1
Initial
proc-
essing
on
power
appli-
cation
Common
processes
Out
refresh
Remote
I/O
proc-
esses
PC
No
cycle
time
Servic-
ing pe-
ripheral
de-
vices
In refresh
7