Communications Frames; Compoway/F - Omron SYSMAC CS1W-SCB41-V1 Operation Manual

Communications Frames

6-8 Communications Frames
6-8-1

CompoWay/F

Command Frame
Frame before Conversion
FINS header
Remote Remote
network node
address address
(DNA) (DA1)
Serial port 00 hex
allocated
address
or local or local
network network
address node
address
Frame after Conversion
STX Node No.
(× 10 1 )
(02 hex)
(× 10 2 )
(ASCII code
2 bytes)
Note
Host Link FINS Protocol Conversion and Use of Network
Routing tables are required to enable the serial communications path to be
treated as a network. This is because with Host Link FINS, the FINS remote
node address is used to specify the target (communications partner PLC that
is the Host Link slave). Therefore, the node to which the Board/Unit is
mounted cannot always be specified, depending on the FINS remote node
address. To specify the Unit at the target requires the FINS remote unit
address. Therefore, the serial port cannot always be specified depending on
the FINS unit address.
The network address for the serial communications path is used to specify
from the network the node to which the Board/Unit is mounted and the serial
port. Therefore, routing tables must be used to enable the serial communica-
tions path to be treated as a network.
Host Link FINS Protocol Conversion and Use of Serial Connection
Routing tables are not required to enable serial communications paths to be
treated as networks. The serial port in the node can be specified without rout-
ing tables by specifying the network address as the unit address of the serial
port.
FINS command
Remote Etc. MRC SRC
unit
address
(DA2)
Serial 28 03
Node No.
(× 10 1 )
port unit
(× 10 2 )
address
(ASCII code
2 bytes)
CompoWay/F
Sub- SID Command
address "0" (MRC, SRC)
"00" (ASCII (ASCII code
(ASCII code code 4 bytes)
3030 hex) 30 hex)
etc.
CompoWay/F commands use ASCII as the transmission code. Therefore, be
sure to use ASCII for the CompoWay/F command after the FINS command
code 2803 hex (from node number to text) using CMND(490) or other instruc-
tion.
Example: If the CompoWay/F command MRC SRC is "01" "02" (where the
quotation marks (" ") indicate ASCII characters), 0, 1, 0, 2 must be treated as
ASCII characters. Therefore, set "01" as 3031 hex (not 01 hex), and "02" as
3032 hex (not 02 hex).
CompoWay/F
(See note.)
Sub- SID Command
address "0" (MRC, SRC)
"00" (ASCII (ASCII code
(ASCII code code 4 bytes)
3030 hex) 30 hex)
etc.
Text ETX BCC
(ASCII code) (03 hex)
Section 6-8
Text
(ASCII code)
237