Omron CJ - 09-2009 Operation Manual page 386

Explanations of PLC Setup Settings
←ON
SYSMAC RUN
ERR/ALM
CJ1G-CPU44
INH
PROGRAMMABLE
PRPHL
CONTROLLER
COMM
OPEN
MCPWR
BUSY
PERIPHERAL
PORT
Note
338
Note When pin 5 of the DIP switch on the front of the CPU Unit is ON, the CPU Unit
automatically detects the communications parameters of a Programming
Device (including Programming Consoles) connected to the RS-232C port.
Those automatically detected parameters are not stored in the PLC Setup.
RS-232C port communications settings when DIP switch
pin 5 is OFF:
Default settings:
Host link mode, 1 start bit, 7 data bits, even parity,
2 stop bits, and a baud rate of 9,600 bps
User-defined settings:
Set the communications mode (host link, NT Link,
no-protocol*, or peripheral bus) and other settings
such as the baud rate.
*See notes 1 and 2 for details on no-protocol mode.
1. A no-protocol transmission delay (address 162) can be set in no-protocol
mode. The operation of this delay is shown in the following diagram.
No-protocol delay
2. The following table shows the message formats that can be set for trans-
missions and receptions in no-protocol mode. The format is determined by
the start code (ST) and end code (ED) settings. (From 1 to 256 bytes can
be received in no-protocol mode.)
Start code setting
None
Yes
Delay
Transmission
TXD(236)
End code setting
None Yes
DATA DATA+ED
ST+DATA ST+DATA+ED
Section 7-2
Time
CR+LF
DATA+CR+LF
ST+DATA+CR+LF