Control method for automatic gathering of status data for distri

Details Control method for automatic gathering of status data for distri Control method for automatic gathering of status data for distri

1996-01-05

1998-10-13

Dung, Dinh C.

Boots, shoes, and leggings

364138, G06F 1342

Patent

active

058226150

ABSTRACT:
A basic system of an NC unit and a distributed type remote I/O unit executes time division signal transaction through a half-duplex serial communication line, and in case where the distributed type remote I/O can not detect a receiving start state of a transmission frame from the basic system of the NC unit for a specified period of time, output is reset, and the basic system of the NC unit checks a type of and data setting in the distributed type remote I/O unit, and also checks a result for an input/output test and the current situation of communication according to a header pattern of a transmission frame.

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