Omron CS1W-ETN11 Operation Manual page 119

Sending Commands From a Host Computer
FINS Command Frame Configuration
FINS header
FINS command
FINS parameter/data
FINS Response Frame
Configuration
FINS
parameter/data field
FINS Header Information
98
Size (bytes)
1
ICF
1
RSV
1
GCT
1
DNA
1
DA1
1
DA2
1
SNA
1
SA1
SA2 1
1
SID
MRC 1
1
SRC
Parameter/
2000 max.
data field
The response code (one byte each for MRES and SRES) for the command is
added at the beginning of the FINS parameter/data field in the response
frame.
Size (bytes)
10
FINS header
FINS command 2
MRES
1
SRES
1
1998 max.
Data
ICF (Information Control Field)
7 6 5 4 3
Bit
1 0 0 0
RSV (Reserved by system)
Set to 00 (Hex).
GCT (Permissible Number of Gateways)
Set to 02 (Hex).
DNA (Destination Network Address)
Specifies the number of the network where the destination node is located.
00 (Hex): Local network
01 to 7F (Hex): Destination network number (1 to 127)
DA1 (Destination Node Address)
Specifies the number of the node where the command is being sent. This
node number is the address used for FINS, and is different from the IP ad-
Contents
Displays frame information
Reserved by system.
Permissible number of gateways
Destination network address
Destination node address
Destination unit address
Source network address
Source node address
Source unit address
Service ID
Main request code
Sub-request code
Command parameters and send data
The data length depends on the MRC and SRC.
Contents
Same as in command frame.
Same as in command frame.
Main response code
Sub-response code
Response data
There are some frames in which
the data length is 0.
2 1 0
0 0
Response Request Bit
(0: Response required; 1: Response not required)
Kind of data (0: command; 1: response)
Section 5-4