Distributed processing type control system
First Claim
1. A distributed processing type control system comprising:
- a plurality of sub-controllers for controlling individually a plurality of local devices different from each other; and
a relaying controller including a rewritable non-volatile memory having predetermined storage areas divided in correspondence with the sub-controllers, the relaying controller being for communicating with an external tool through a first communication path based on a first communication protocol and for communicating with each of the sub-controllers through a second communication path based on a second communication protocol,the relaying controller including data communication relaying means for executing, when receiving a data from the first communication path to be transmitted to the sub-controller, a data configuration conversion of the received data between the communication protocols to transmit the converted data to the second communication path, and for executing, when receiving a data from the second communication path to be transmitted to the external tool, a data configuration conversion of the received data between the communication protocols to transmit the converted data to the first communication path, andthe relaying controller including common non-volatile memory managing means for transmitting a stored data in the corresponding storage area of the non-volatile memory to the sub-controller through the second communication path when receiving a memory reading request from the sub-controller, and for writing, when receiving a memory writing request and a writing data from the sub-controller, the writing data in the corresponding storage area of the non-volatile memory.
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Accused Products
Abstract
A relaying controller communicates with an external tool through a first communication path based on a first communication protocol and communicates with sub-controllers through a second communication path based on a second communication protocol, thus relaying communications between the external tool and the sub-controllers. The relaying controller includes a rewritable non-volatile memory having predetermined storage areas divided in correspondence with the sub-controllers. The relaying controller transmits, in response to a memory reading request from the sub-controller, a stored data in the corresponding storage area to the sub-controller through the second communication path, and writes, in response to a memory writing request from the sub-controller, a writing data received through the second communication path in the corresponding storage area. That is, the relaying controller executes accesses of the sub-controllers to the non-volatile memory.
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Citations
6 Claims
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1. A distributed processing type control system comprising:
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a plurality of sub-controllers for controlling individually a plurality of local devices different from each other; and a relaying controller including a rewritable non-volatile memory having predetermined storage areas divided in correspondence with the sub-controllers, the relaying controller being for communicating with an external tool through a first communication path based on a first communication protocol and for communicating with each of the sub-controllers through a second communication path based on a second communication protocol, the relaying controller including data communication relaying means for executing, when receiving a data from the first communication path to be transmitted to the sub-controller, a data configuration conversion of the received data between the communication protocols to transmit the converted data to the second communication path, and for executing, when receiving a data from the second communication path to be transmitted to the external tool, a data configuration conversion of the received data between the communication protocols to transmit the converted data to the first communication path, and the relaying controller including common non-volatile memory managing means for transmitting a stored data in the corresponding storage area of the non-volatile memory to the sub-controller through the second communication path when receiving a memory reading request from the sub-controller, and for writing, when receiving a memory writing request and a writing data from the sub-controller, the writing data in the corresponding storage area of the non-volatile memory. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification