Omron Corporation

Masahiro Nishi

Hiroaki Yamada

Yasuhiro Kitamura

Atsushi Kamimura

Toshikatsu Nakamura

Provided is a control apparatus that can correctly obtain the execution status information of the instruction whose sender is the control apparatus itself. The controller () controls operations of the IO-Link device () via the IO-Link master (), and includes the writing part () transmitting an instruction for the IO-Link device () and an identification of the instruction to the IO-Link master () and the reading part () retrieving an execution status information (status) indicating the execution status of the instruction by using the identification information.

Control apparatus, relay apparatus, control method for control apparatus, control method for relay apparatus, control program and storage medium

This invention enables an abnormality analysis to be easily and reliably performed in the FA system of the EtherCAT (registered trademark). A controller has a protocol monitor function of operating in a monitor system program, and constantly monitors data communicated with a remote device. The controller has an abnormality diagnosis function of detecting abnormality, and thus holds the data monitored immediately before when abnormality is detected. As the protocol monitor function is incorporated, a protocol monitor does not need to be newly plugged into the network as an external device after the occurrence of abnormality, and the data that becomes the cause can be held from the abnormality that occurred first by monitoring from the beginning of the operation of the system and can be used for analysis.

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Ritto, Japan

Masahiro Nishi