Fins Commands And Responses; Fins Communications Service; Sending And Receiving Fins Commands And Responses - Omron SYSMAC CS1W-RPT01 Operation Manual

FINS Commands and Responses

6-4 FINS Commands and Responses
6-4-1

FINS Communications Service

6-4-2

Sending and Receiving FINS Commands and Responses

Automatically prepared and added.
2 bytes
FINS header
Automatically pre- Command code
pared and added.
2 bytes 2 bytes
FINS header
Command
Automatically
added. code
202
The FINS communications service is a communications protocol developed
by OMRON for FA control devices. It can be used for reading from and writing
to PLC memory, or for controlling various operations, without having to create
a user's program at the PLC. The FINS communications service has its own
independent address system which does not rely on the actual network
address system, so it can carry out communications in the same way regard-
less of whether the PLC at the local node is on a Controller Link Network or
some other FA network (e.g., SYSMAC NET or SYSMAC LINK). For details
on FINS commands, refer to the FINS Commands Reference Manual (W227).
FINS commands can be sent by using the CMND instruction with a CVM1,
CV-series, CS/CJ-series, or CQM1H-series PLC. The following diagram
shows the data format for sending FINS commands and receiving responses.
The data that is sent and received is all hexadecimal unless otherwise noted.
2,000 bytes max.
Text
Command
Response
1,998 bytes max.
Response Text
code
Word
@CMND
Command
S
D
C
Word
Response
Controller
CPU Unit
Link Unit
Section 6-4
1 byte 1 byte
15 87
S
S+1
S+2
1 byte 1 byte
15 87
D
D+1
D+2
Computer
CS/CJ, CVM1,
CV-series,
or CQM1H-
series PLC
Controller Link
Support Board
0
0