Omron SYSMAC C200HW-PCS01-EV1, Руководство по эксплуатации

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9-6-3 FINS Header Information
This subsection explains the FINS header contents and settings used for FINS
commands and responses.
ICF (Information Control Field)
Information such as the data classification, response request, communications
between networks, and so on, is set in the ICF. The configuration is as follows:
7 6 5 4 3 2 1 0
1 0 0 0 0 0
Response Request Bit
(0: Request response; 1: Don’t request response)
Kind of data (0: command; 1: response)
RSV Reserved (system reserved area)
Set to $00.
GCNT (Permissible Number of Gateways)
Set to $02.
DNA (Destination Network Address)
Specifies the network address of the destination node.
$01 to 7F: (1 to 127)
DA1 (Destination Node Number)
Specifies the destination node number for sending the command. It is used for
FINS, and is different from the IP address used for Ethernet.
$00: Local PC
$01 to 7F (1 to 127): Node in Ethernet
DA2 (Destination Unit Address)
Specifies as an absolute address a unit number at the destination node.
(Example: CPU Special I/O Unit #0 is $10.)
$00: PC (CPU)
$10 to $1F: CPU Special I/O Unit (PC Card Unit is $10.)
$FE:
Communications Unit
SNA (Source Network Address)
$01 to 7F: Local network address (1 to 127)
SA1 (Source Node Number)
$00: Local PC
$01 to 7F (1 to 127): Node in Ethernet
SA2 (Source Node Address)
$00: PC (CPU)
$10 to $1F: CPU Special I/O Unit (PC Card Unit is $10.)
$FE:
Communications Unit
SID (Service ID)
The SID is used to identify the process that data is sent from. Set any desired
number from $00 to $FF for the SID. The same number will be returned in the
response, allowing you to match commands and responses in your application.
FINS Communications From Computers
Section 9-6