Omron CS1G/H-CPUxx-EV1 Programming Manual page 334

Serial Communications
Communications Frames
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 )
(2 bytes
ASCII)
Frame before Conversion
STX Node No.
(× 10 1 )
(02 hex)
(× 10
(2 bytes
ASCII)
Frame after Conversion
FINS header
Remote Remote
network node
address address
(DNA) (DA1)
Serial 00 hex Serial
port
allocated
address
298
FINS command
Remote Etc. MRC SRC
unit
address
(DA2)
Serial 28 03
port unit
address
CompoWay/F
Sub- SID Command
address "0" (MRC, SRC)
"00" (ASCII (4 bytes ASCII)
(ASCII 30 hex)
3030 hex)
etc.
Note 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).
Further, to write the CompoWay/F command to the command storage area
using CMND(490) in frame order (without creating empty bytes), the SID com-
ponent of the CompoWay/F command requires 1 byte of ASCII as 30 hex, so
the subsequent components (s+3 and afterwards) must be set in one byte
each.
CompoWay/F
Sub- End code Command
address (MRC,
(2 bytes
2
)
"00" SRC)
ASCII)
(ASCII (4 bytes
3030 ASCII)
hex) etc.
FINS command FINS end code
Remote MRC SRC MRES SRES
unit ad-
dress
(DA2)
etc.
User- User-
03
28
speci- speci-
port unit
fied fied
address
CompoWay/F
(See note.)
Node No. Sub- SID Command
(× 10 1 )
address "0" (MRC, SRC)
(× 10 2 )
"00" (ASCII (4 bytes ASCII)
(2 bytes (ASCII 30 hex)
ASCII) 3030 hex)
etc.
Text ETX
(ASCII) (03 hex)
Response Text ETX BCC
(MRES,
(ASCII) (03 hex)
SRES)
(4 bytes
ASCII)
CompoWay/F
(See note.)
Node No. Sub- End code
1
address
(× 10 ) (2 bytes
2
"00"
(× 10 ) ASCII)
(ASCII
(2 bytes ASCII)
3030 hex)
etc.
Section 6-3
Text
(ASCII)
BCC
Command Response Text
(MRC, (MRES,
(ASCII)
SRC) SRES)
(4 bytes (4 bytes
ASCII) ASCII)