Omron CJ2 - 02-2010 User Manual page 444

11 Programming Devices and Communications
Peripheral Bus (Toolbus)
CX-One Support Software, such as the CX-Programmer
CX-Programmer
RS-232C
Host Link System Slave (SYSMAC WAY Mode 1:N)
The Host Link System allows the I/O memory of the PLC to be read/written, and the operating mode to
be changed from a Host computer (personal computer or Programmable Terminal) by executing Host
Link commands or FINS commands that are preceded by a header and followed by a terminator. Alter-
natively, FINS commands (preceded by a header and followed by a terminator) can be sent to a com-
puter connected via the Host Link System by executing Network Communications Instructions
(SEND(090)/RECV(098)/CMND(490)) from the PLC.
Host computer
RS-232C
Host Link commands
or FINS commands
*1 Set pin 5 of the DIP switch on the front panel of the CPU Unit to OFF, and set the serial communications mode
in the PLC Setup to Host Link.
11-16
Applicable port
USB port
FINS commands sent via
SEND/RECV/CMND
instructions from the PLC
Serial
Communi-
CPU Unit
cations
Unit
RS-232C port
Yes
Yes No
Applicable port
Serial
Communi-
CPU Unit
cations
Unit
USB port RS-232C port
Yes
No Yes
*1
CJ2 CPU Unit Software User's Manual