Tmeic Corporation

Vittal Rao

Akira Nojima

Ryo Shimizu

Nobuo Shimizu

When a general-purpose operation part () is hidden by a window part (), it becomes hard for an operator to visually check an association state between a field device (A,B) and a hardware switch (). If such a display state has occurred, an HMI server () stops a health check signal which is being output to a PLC (). The PLC () detects the stop of the health check signal and forcibly cancels the association state between the field device (A,B) and the hardware switch (). Thus, a human error can be prevented.

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Tokyo, Japan

Vittal Rao