Title:
CONTROL DEVICE AND CONTROL METHOD
Document Type and Number:
Japanese Patent JP3911976
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a control device and control method capable of securing the safety of an operator in action in case of an error.
SOLUTION: In this control method for controlling the same controlled system by concurrently executing plural control programs, error information including an error code output from the respective control programs in executing the respective control programs, and operation information including a stop code are respectively written in an error information storing frame 25 and a stop code writing frame 27, and when error announcement is given in case of an error in either control program, according to the states of the error information storing frame 25 and the stop code writing frame 27, error indication is performed by an indication processing part 28. Thus, in case of an error, after the stop of the other control program is confirmed, error announcement is given so as to secure the safety of the operator in action against error.
Inventors:
Nobuyuki Sueto
Takahashi Koichi
Takahashi Koichi
Application Number:
JP2000246837A
Publication Date:
May 09, 2007
Filing Date:
August 16, 2000
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
G05B9/02; H05K13/04; G05B23/02; (IPC1-7): G05B9/02; G05B23/02; H05K13/04
Domestic Patent References:
| JP8339211A |
Attorney, Agent or Firm:
Fumio Iwahashi
Hiroki Naito
Daisuke Nagano
Hiroki Naito
Daisuke Nagano
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