Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 Reference Manual page 1032

Serial Communications Instructions
992
Controlling Signals
00001
S
C
N
15
S: D00300 1
15 12
C: D00400
0
Related PLC Setup Settings
CX-Programmer Settings for the CPU Unit's Built-in RS-232C Port
TXD
When CIO 00001 turns ON, the
D00300
status of bit 15 of D00300 is
output as the RS signal and the
D00400
status of bit 14 is output as the
&0
ER signal.
14 13 12
0 0 0
Turns OFF ER signal.
Turns ON RS signal.
11 8 7 4 3 0
0 3 0
Byte Order
#0: Most significant bytes first
RS and ER Signal Control
#3: RS and ER signal control
Serial Port Specifier
#0: CPU Unit's built-in RS-232C port
Always #0.
Section 3-24