Control system, control method, control program, and recording medium
AssigneeOMRON Corporation
InventorsToshiyuki Ozaki, Hiroyuki Tsuchida, Koyo Ozaki, Ryosuke Tsuzuki, Ryota Hasegawa, Shoichi Ohnaka
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Abstract
An IO-Link master includes: an IO-Link communication port that communicates with an IO-Link device according to a predetermined communication protocol; a digital input port that receives a first signal value output from the IO-Link device; and a determiner that determines whether abnormality is generated in a digital input line connecting the digital input port to the IO-Link device based on a second signal value received with the IO-Link communication port and the first signal value.
Claims19
A control system comprising a processor configured with a program to perform operations comprising:
- operation as a device communication port comprising a signal receiver configured to receive a first signal from an external device and communicator configured to receive a second signal from the external device according to a predetermined communication protocol;
- and
- operation as a determiner configured to determine whether a signal line connecting the signal receiver to the external device is abnormal based on a determined condition associated with the first signal and the second signal.
A control method comprising:
- receiving a second signal from an external device according to a predetermined communication protocol;
- receiving a first signal from the external device;
- and
- determining whether a signal line through which the first signal is transmitted is abnormal based on a determined condition associated with the first signal and the second signal.
A non-transitory computer-readable recording medium storing instructions which, when executed by a processor, cause the processor to perform operations comprising:
- receiving a first signal from an external device;
- receiving a second signal from the external device according to a predetermined communication protocol;
- and
- determining whether a signal line through which the first signal is transmitted is abnormal based on a determined condition associated with the first signal and the second signal.
Dependencies are inferred from the claim text.