Omron CS1D DUPLEX SYSTEM - 10-2009 Operation Manual page 583

Auxiliary Area Allocations
A20015: Initial Task Flag
A20015 will turn ON during the first time a task is executed after it has reached executable status. It will be ON
only while the task is being executed and will not turn ON if following cycles.
A20200 to A20207: Communications Port Enabled Flags
A300: Error Record Pointer
Executable
status
Executed
1 cycle
A20015
Network communications in-
struction executed for port 0.
A20200
The program is designed so that CMND(490)
will be executed only when A20200 is ON.
Error record 1
Example
Error record 20
CMND
Port 0
SEND
Port 1
PMCR
Port 7
Instruction
execution
1
0
A20200
CMND
00 to 14 hex
Points to the next record to be used.
Stored
Stored
Stored
next
Appendix B
547