Communications Processing Flow - Omron FH series User Manual

Communications Processing Flow

For EtherNet/IP communications, the following five communications areas are set in the PLC to perform
communications.
Input tag set to the
Sensor Controller
Output connection to
PLC
The above five areas are set using Support Software that can set tag data link settings (e.g., Sysmac Studio Ver.
1.10 or later, Network Configurator). The areas can be specified by using I/O memory addresses or variable
names.
For details on tag data link settings using the Network Configurator, refer to
Or, if you are connecting to a non-OMRON PLC or EtherNet/IP unit, download the EDS file for the Sensor
Controller from your OMRON website and follow the procedures in the user's manual for the external device you
want to connect to and in the instructions for the software that you use to set the tag data link settings.
The flow of EtherNet/IP communication between a PLC and the Sensor Controller is shown below.
218
Communicating with EtherNet/IP
(1) Command Area (command/
response method)
(2) User Input Area
(3) Response Area (command/
response method)
(4) Data Output Area (data
output after measurement)
(5) User Output Area
You write the control commands to execute for the Sensor Controller
to this area.
You write data that you define for the FH Sensor Controller to this
area.
The FH Sensor Controller writes the results of executing the control
commands that were written in the Command Area to this area.
The FH Sensor Controller writes the output data for the measurement
to this area after execution of the measurement.
The FH Sensor Controller writes data that you define to this area.
Tag Data Link Setting Methods (p.228).
Vision System FH/FZ5 Series User's Manual
for Communications Settings (Z342)