Omron CP1L - Page 423

389
Serial Communications Section 6-3
Create frame in the host com-
puter and send the command to
the PLC. Receive the response
from the PLC.
Application:
Use these methods when com-
municating primarily from the
host computer to PLCs in the
network.
Remarks:
The FINS command must be
placed between a Host Link
header and terminator and then
sent by the host computer.
Send the command frame with
the CPU Unit’s SEND, RECV, or
CMND instruction. Receive
response from the host com-
puter.
Application:
Use this method when commu-
nicating primarily from the PLC
to the host computer to transmit
status information, such as error
information.
Remarks:
The FINS command will be
placed between a Host Link
header and terminator when it is
sent. The FINS command must
be interpreted at the host com-
puter and then the host com-
puter must return a response.
Command
flow
Command type Communications method Configuration
FINS
Header Terminato
r
FINS command (with
Host Link header and
terminator) sent.
OR
Directly connect the host computer in a 1:1
or 1:N system.
SYSMAC
CP1L
L1 L2/N COM010305070911010305070911
00 02 04 06 08 10 00 02 04 06 08
10
00 01 02 03 04 06 00 01 03 04 06
COM COM COM COM 05 07 COM 02 COM 05
07
IN
OUT
COMM
COMM
SYSMAC
CP1L
L1 L2/N COM010305070911010305070911
00 02 04 06 08 10 00 02 04 06 08
10
00 01 02 03 04 06 00 01 03 04 06
COM COM COM COM 05 07 COM 02 COM 05
07
IN
OUT
COMM
COMM
SYSMAC
CP1L
L1 L2/N COM010305070911010305070911
00 02 04 06 08 10 00 02 04 06 08
10
00 01 02 03 04 06 00 01 03 04 06
COM COM COM COM 05 07 COM 02 COM 05
07
IN
OUT
COMM
COMM
Command
Host compute
r
SYSMAC
CP1L
L1 L2/N COM010305070911010305070911
00 02 04 06 08 10 00 02 04 06 08
10
00 01 02 03 04 06 00 01 03 04 06
COM COM COM COM 05 07 COM 02 COM 05
07
IN
OUT
COMM
COMM
FINS
Header
Terminator
FINS command
(with
Host Link header and
terminator) is sent.
Directly connect the host computer in a 1:1
system.
SYSMAC
CP1L
L1 L2/N COM010305070911010305070911
00 02 04 06 08 10 00 02 04 06 08
10
00 01 02 03 04 06 00 01 03 04 06
COM COM COM COM 05 07 COM 02 COM 05
07
IN
OUT
COMM
COMM
SEND/RECV/
CMND