Method and apparatus for loading a control program into a refrigeration system
First Claim
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1. A programmable control system for controlling heating or cooling elements, said programmable control system comprising:
- a programmable processor for executing a control program defining control functions for the heating or cooling elements;
a memory system associated with said processor for storing the control program to be executed by the programmable processor;
a device for receiving a card containing both the control program and a copy program containing all instructions to be executed by the programmable processor during transfer of the control program; and
logic for transferring the control program from the card to said memory system upon insertion of the card into said card receiving device, said logic being responsive to the first address issued by said programmable processor following receipt of the card for addressing the first instruction of the copy program.
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Abstract
A programmable system for controlling the refrigeration of a transportable container is provided. The system is programmed by insertion of a card into the control system so as cause a control program to be transferred from the card to a memory within the control system.
17 Citations
25 Claims
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1. A programmable control system for controlling heating or cooling elements, said programmable control system comprising:
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a programmable processor for executing a control program defining control functions for the heating or cooling elements; a memory system associated with said processor for storing the control program to be executed by the programmable processor; a device for receiving a card containing both the control program and a copy program containing all instructions to be executed by the programmable processor during transfer of the control program; and logic for transferring the control program from the card to said memory system upon insertion of the card into said card receiving device, said logic being responsive to the first address issued by said programmable processor following receipt of the card for addressing the first instruction of the copy program. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 17, 18, 19, 20)
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11. A method for programming a control system for controlling heating or cooling elements, said method comprising the steps of:
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storing a control program defining control functions for the heating or cooling elements on a card capable of being registered with a card reading device in the control system; storing a copy program on the card containing all necessary instructions to be executed by a processor for the copying of the control program into a memory associated with the processor; and transferring the control program stored on the card to a memory internal to the control system in accordance with instructions in the copy program whereby the control system is thereafter operative to control the heating or cooling elements as defined by the thus stored control program. - View Dependent Claims (12, 13, 14, 15, 16)
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21. A programmable control system for controlling heating or cooling elements, said programmable control system comprising:
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a programmable processor for executing a control program defining control functions for the heating or cooling elements; a memory system associated with said processor having a plurality of addressable storage locations capable of storing the control program; a device for receiving a card containing both the control program and a copy program containing all instructions to be executed by the programmable processor when transferring the control program to said memory system, said device being operative to generate a signal indicating when a card is fully inserted; and addressing logic, responsive to addressing from the processor and to the signal indicating full insertion of the card, for first defining an addressable storage location on the card containing the first instruction of the copy program and thereafter defining the addresses of the addressable storage locations in the memory system that are to receive the control program in accordance with instructions of the copy program stored on the card. - View Dependent Claims (22, 23, 24, 25)
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Specification