Title:
SEQUENCE CONTROLLER
Document Type and Number:
Japanese Patent JP3296480
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide the sequence controller which makes good use of receive data received normally from a station even if receive data from some station can not be received normally.
SOLUTION: This device is equipped with a communication device 10 which receives data sent from respective stations through a communication line and sends the data to the respective stations, an intermediate buffer 70 having 1st, 2nd and 3rd buffer circuits buff 1 to buff 3 storing the data sent and received by the communication device 10, and a buffer controller 40 which specifies which of the buffer circuits of the intermediate buffer 70 is stored with the data sent and received by the transmission device 10. In this case, when the communication device 10 receives data from some station normally, the data is written to the buffer circuit that the buffer controller 40 specifies and when the current received data is not normal, next data which is received normally is written to the same buffer circuit.
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Inventors:
Naohiko Odagiri
Application Number:
JP27416797A
Publication Date:
July 02, 2002
Filing Date:
October 07, 1997
Export Citation:
Assignee:
Yokogawa Electric Corporation
International Classes:
G06F15/16; G05B19/05; G06F15/163; (IPC1-7): G05B19/05
Domestic Patent References:
| JP9261226A | ||||
| JP23803A | ||||
| JP2186407A | ||||
| JP4232504A | ||||
| JP225904A |
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