Filter
Top Products
142
FINS Commands and Responses Section 6-2
Refer to SYSMAC CS/CJ Series Communication Commands Reference Man-
ual (W342) for details on FINS commands.
6-2-2 Sending/Receiving FINS Command/Responses
FINS commands are sent using the CMND(490) instruction for CS/CJ-series
PCs. Send/receive FINS commands and responses and the data formats
used are illustrated in the following diagram. Unless otherwise specified, all
data is hexadecimal.
Command Codes 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 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.
(For CS/CJ-series PC)
Command
Response
Word
Word
1 byte 1 byte
1 byte 1 byte
FINS header
Automatically
generated
and attached
2 bytes
540 bytes max.
Command
code
Tex t
DeviceNet
Unit
CS/CJ-series CPU Unit
DeviceNet network
Command
FINS header
Automatically
generated
and attached
2 bytes 538 bytes max.
Command
code
Tex t
2 bytes
Response
code
Response