Equipment management system, programmable controller and centralized controller
First Claim
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1. An equipment management system comprising:
- a programmable controller that accepts setting of a control program corresponding to a unique function of facility equipment and setting of an identification code from a removable program/code setting unit, that generates control information for said facility equipment by executing the control program, and that transmits the control information for said facility equipment and the identification code; and
a centralized controller that controls said facility equipment according to a control program corresponding to a standard function of said facility equipment, that receives the control information and the identification code transmitted from said programmable controller, and that transmits the control information to said facility equipment only when the identification code from the programmable controller is a valid code for said facility equipment, the identification code being unique to each piece of the facility equipment and calculated from an individual identification number assigned to each piece of the facility equipment, the individual identification number being a manufacturer'"'"'s serial number of the facility equipment, whereinthe programmable controllerdetects a connection to the centralized controller and transmits the identification code accepted from the removable program/code setting unit to said centralized controller when the connection is detected,generates the control information and then transmits the control information to said centralized controller when a control enabling signal that authorizes control of the facility equipment is received from the centralized controller, andinhibits the transmission of the control information to said centralized controller when a control disabling signal that disables control of the facility equipment is received from the centralized controller, andthe centralized controllerreceives the identification code and determines whether the identification code received is the valid code for said facility equipment or not,generates the control enabling signal to the programmable controller which authorizes control of the facility equipment when the identification code from the programmable controller is determined to be the valid code, andgenerates the control disabling signal to the programmable controller that disables control of the facility equipment when the identification code is determined not to be the valid code.
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Accused Products
Abstract
A centralized controller 2 controls facility equipment 3a and 3b according to a sequence control program corresponding to standard functions of the facility equipment 3a and 3b. In addition, the centralized controller 2 receives control information for controlling a unique function of the facility equipment 3a and 3b and a PIN code, which are transmitted from a programmable controller 1, and transmits, if the PIN code is a valid code, the control information to the facility equipment 3a and 3b.
17 Citations
19 Claims
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1. An equipment management system comprising:
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a programmable controller that accepts setting of a control program corresponding to a unique function of facility equipment and setting of an identification code from a removable program/code setting unit, that generates control information for said facility equipment by executing the control program, and that transmits the control information for said facility equipment and the identification code; and a centralized controller that controls said facility equipment according to a control program corresponding to a standard function of said facility equipment, that receives the control information and the identification code transmitted from said programmable controller, and that transmits the control information to said facility equipment only when the identification code from the programmable controller is a valid code for said facility equipment, the identification code being unique to each piece of the facility equipment and calculated from an individual identification number assigned to each piece of the facility equipment, the individual identification number being a manufacturer'"'"'s serial number of the facility equipment, wherein the programmable controller detects a connection to the centralized controller and transmits the identification code accepted from the removable program/code setting unit to said centralized controller when the connection is detected, generates the control information and then transmits the control information to said centralized controller when a control enabling signal that authorizes control of the facility equipment is received from the centralized controller, and inhibits the transmission of the control information to said centralized controller when a control disabling signal that disables control of the facility equipment is received from the centralized controller, and the centralized controller receives the identification code and determines whether the identification code received is the valid code for said facility equipment or not, generates the control enabling signal to the programmable controller which authorizes control of the facility equipment when the identification code from the programmable controller is determined to be the valid code, and generates the control disabling signal to the programmable controller that disables control of the facility equipment when the identification code is determined not to be the valid code. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A programmable controller comprising:
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storage means for accepting, from a removable program/code setting unit, setting of a control program corresponding to a unique function of facility equipment and for accepting setting of an identification code, and for storing the control program and the identification code, the identification code being unique to each piece of the facility equipment and represents a calculation from an individual identification number assigned to each piece of the facility equipment, the individual identification number being a manufacturer'"'"'s serial number of the facility equipment; control information generating means for generating control information for said facility equipment by executing the control program stored in said storage means; and communication means for transmitting the control information for said facility equipment generated by said control information generating means and the identification code stored in said storage means to a centralized controller, wherein the control information generating means detects connection of the communication means to the centralized controller, supplies the control information to the communication means when the connection is detected, causes the communication means to transmit the control information for said facility equipment to said centralized controller when a control enabling signal that authorizes control of the facility equipment is received from the centralized controller, and inhibits the communication means from transmitting the control information for said facility equipment to said centralized controller when a control disabling signal that disables control of the facility equipment is received from the centralized controller. - View Dependent Claims (9, 10, 11, 12)
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13. A centralized controller comprising:
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facility equipment control means for controlling facility equipment according to a control program corresponding to a standard function of said facility equipment; receiving means for receiving control information and an identification code, which are transmitted from a programmable controller, the identification code being unique to each piece of the facility equipment and calculated from an individual identification number assigned to each piece of the facility equipment, the individual identification number being a manufacturer'"'"'s serial number of the facility equipment; decision means for making a decision as to whether the identification code received by said receiving means is a valid code for said facility equipment or not, for generating a control enabling signal to the programmable controller that authorizes control of the facility equipment when the decision result indicates that the identification code is the valid code, and for generating a control disabling signal to the programmable controller that disables control of the facility equipment when the identification code is not the valid code; and transmitting means for transmitting, only when the decision result by said decision means indicates that the identification code is the valid code for said facility equipment, the control information received by said receiving means to said facility equipment. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification