Ethernet/Ip Communications - Omron FH series User Manual

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EtherNet/IP Communications

You can use an EtherNet/IP tag data link to communicate between the PLC and the Sensor Controller to control
the Sensor Controller from the PLC with command/response communications or to output data after
measurements.
The Sensor Controller supports EtherNet/IP conformance tests.
Tag data link settings are set using Support Software for tag data link settings.
To connect to OMRON Controllers and communicate through EtherNet/IP, you use the Network Configurator to
set up tag data links (i.e., tags, tag sets, and connection settings).
This section describes how to use the Network Configurator to set tag data link settings.
Refer to the following manuals for details on the tag data link settings that are made with the Network
Configurator.
• Reference:
NJ-series CPU Unit Built-in EtherNet/IP Port User's Manual (Cat. No. W506)
• Reference:
CS/CJ-series EtherNet/IP Units Operation Manual (Cat. No. W465)
• Reference:
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (Cat. No. W495)
IMPORTANT
• Since a reasonable amount of measurement takt time is required to have stable communications in an operation under
high load, verify the operation under the conditions that are to be actually applied.
• On a network to which many devices are connected, performance may drop (e.g., responses may be delayed or packets
lost) or communications errors may occur when there is temporarily high traffic on the network. Test the operation under
actual conditions before you start actual operation of the system.
• When the measurement interval is short, the measurement processing load is high, or command processing for
operations such as scene group changing is time-consuming, the Sensor Controller prioritizes measurement processing
and control processing over communication processing. As a result, communication between an external device and the
Sensor Controller may be temporarily interrupted, and a communication error may occur. In this case, set the
communication error timeout time longer than the Sensor Controller's processing time, or lengthen the measurement
interval. Set the communication error timeout time in the tag data link connection settings
Timeout value > Measurement time on Sensor Controller.
*1:
Use Support Software, such as the Network Configurator, to change the tag data link connection settings.
For information on setting the tag data links using the Network Configurator, refer to
(p.228).
Vision System FH/FZ5 Series User's Manual
for Communications Settings (Z342)
*1
as follows:
Tag Data Link Setting Methods
Communicating with EtherNet/IP
2
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