Omron V780-HMD68-EIP-JP, Руководство пользователя

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7 Ethernet/IP Communications
7 - 2 UHF RFID System V780-series Reader/Writer User’s Manual (EtherNet/IP
TM
) (Z402)
7-1 Outline
Data is exchanged cyclically between Ethernet devices on the EtherNet/IP network using tag data links
as shown below.
To exchange data, a connection is opened between two EtherNet/IP devices.
One of the nodes requests the connection to open a connection with a remote node. The node that
requests the connection is called the originator, and the node that receives the request is called the tar-
get. The host device (PLC) and Reader/Writer function as the originator and target.
The memory locations that are used to exchange data across a connection are specified as tags.
You can specify memory addresses or variables in the host device (PLC) for tags.
A group of tags consists of an output tag set and an input tag set.
7-1-1 EtherNet/IP Communications Protocol
Data Exchange Method
Data Exchange Memory Locations
EtherNet/IP
• D100 • Output_10□
Input Output
Tag set name: ABC Tag set name: Output_10□
Output tags
Input tags
Connection
Originator Target
• Input_11
□
• D200
Input Output
Tag set name: XYZ
Tag set name: Input_11□
Output tags Input tags
Connection
Target
Originator
CS/CJ-series CPU Unit
An example of connection with a CS/CJ-series CPU Unit is shown below.
An example of connection with a NJ/NX-series CPU Unit is shown below.
Reader/Writer
Connection
EtherNet/IP EtherNet/IP
NJ/NX-series CPU Unit
Var_In_a
Var_In_c
Var_In_b
Var_Out_d
Var_Out_f
Var_Out_e
I/O refreshed. I/O refreshed.
• Var_Out_d
• Var_Out_e
• Var_Out_f
• Var-Out1
• Var-Out2
• Var-Out3 • Var_In_a
• Var_In_b
• Var_In_c
• DM00200
• WR300
• DM20100
Input
Input
Outputs
Output
Tag set name: ABC
Tag set name: XYZ
Tag set name: IN1
Tag set name: OUT1
Output tags
Output tags
Input tags
Input tags
Connection
Originator Target
Target
Originator
I/O refreshed. I/O refreshed.
Reader/Writer