Omron SYSMAC C200H-ASC02 Operation Manual page 128

PC Statements and Refresh Timing
PC STOP
After the ON PC GOSUB statement is executed, the PC's interrupt number is written in. When the Write flag is
set, the ASCII Unit busy flag is set for one scan time, but the GOSUB statement is not executed. Only after
the PC ON statement is executed will the ON PC GOSUB statement be executed.
I/O Refresh
C200H CPU
ASCII Unit
PC STOP Statement Execution
Interrupt Number
(word n bits 04 through 07)
WRITE Flag (word n bit 01)
ASCII Unit (word n+3 bit 00)
122
I/O Refresh
Instruction Execution
I/O Refresh
Instruction Execution
PC STOP Statement Execution
Appendix C
I/O Refresh
Instruction Execution