Sending/Receiving Fins Command/Responses - Omron CS1W-DRM21 Operation Manual

FINS Commands and Responses
6-2-2

Sending/Receiving FINS Command/Responses

2 bytes
FINS header
Automatically
Command
generated
code
and attached
2 bytes
FINS header
Automatically Command
generated code
and attached
Command Codes
Response Codes
146
Refer to SYSMAC CS/CJ Series Communication Commands Reference Man-
ual (W342) for details on FINS commands.
FINS commands are sent using the CMND(490) instruction for CS/CJ-series
PLCs. Send/receive FINS commands and responses and the data formats
used are illustrated in the following diagram. Unless otherwise specified, all
data is hexadecimal.
(For CS/CJ-series PLC)
540 bytes max.
Text
Command
DeviceNet network
Response
2 bytes 538 bytes max.
Response Text
code
Command codes are represented by a 2-byte hexadecimal code. FINS com-
mands always begin with a 2-byte command code and any parameters that
are required follow the command code.
Response codes are represented by a 2-byte hexadecimal code that indicates
the results of command execution. The first byte provides the main response
code (MRES), which classifies the results, and the second byte provides the
sub-response code (SRES), which provides details on the results.
Word
@CMND
Command
Word
Response
DeviceNet
Unit
Section 6-2
1 byte 1 byte
1 byte 1 byte
CS/CJ-series CPU Unit