Omron Sysmac NY512-1300, Руководство пользователя

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7 Tag Data Link Functions
NY-series Industrial Panel PC / Industrial Box PC Built-in EtherNet/IP Port User’s Manual (W563)
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Tag data links are automatically started immediately after the data link parameters are downloaded
from the Network Configurator. (They are automatically started after the CPU Unit’s power is turned ON
or the Unit is restarted.)
Additional Information
A Tag Data Link Connection Timeout error will occur if a connection is not established with the
target device within 1 minute after the tag data links are started in operation as the originator
device. Reconnection processing is continued periodically even after this error occurs to auto-
matically recover. If the application environment allows this error to be ignored, such as when a
target device is started later than the originator device, you can change the event level to the
observation level.
You can start and stop tag data links for the entire network from the user program or from the Network
Configurator.
Precautions for Correct Use Precautions for Correct Use
Use the same method (i.e., either the user program or the Network Configurator) to both start
and stop tag data links. For example, if you use the
_EIP_TDLinkStopCmd (Tag Data Link Com-
munications Stop Switch) system-defined variable stop tag data links, you cannot start them
from the Network Configurator.
 Using Commands in the User Program
You can change the corresponding elements in the following system-defined variables to TRUE in
the user program to start and stop tag data links for individual devices. (Refer to
Section 3 System-
defined Variables Related to the Built-in EtherNet/IP Port. )
• _EIP_TDLinkStartCmd (Tag Data Link Communications Start Switch)
• _EIP_TDLinkStopCmd (Tag Data Link Communications Stop Switch)
Additional Information
• Change the Tag Data Link Start Switch to TRUE, while the Tag Data Link Communications
Stop Switch is FALSE. If the Tag Data Link Stop Switch is TRUE, the tag data links do not start
even if the Tag Data Link Start Switch is changed to TRUE. Furthermore, if the Tag Data Link
Start Switch and the Tag Data Link Stop Switch are both TRUE, an error occurs, the Multiple
Switches TRUE Error system-defined variable changes to TRUE, and the event is recorded in
the event log.
• After you start the tag data links, do not force the Tag Data Link Start Switch to change to
FALSE from the user program or from the Sysmac Studio. It will change to FALSE automati-
cally.

Using the Network Configurator
You can select I/O Connection - Start or I/O Connection - Stop from the Network Menu to start
and stop tag data links for individual devices.
7-2-12 Starting and Stopping Tag Data Links
Automatically Starting Tag Data Links
Starting and Stopping Tag Data Links for the Entire Network