Modular pool/spa control system

1. A method of integrating a relay bank for use with a pool or spa control system, comprising the steps of:

establishing electrical connection between the relay bank and a control panel of the pool or spa control system;

discovering the relay bank by a processor of the control panel; and

assigning the relay bank a network address from the control panel upon discovery of the relay bank.

2. The method of claim 1 , wherein the step of discovering the relay bank further comprises:

broadcasting a query for new devices from the processor of the control panel;

transmitting a query response from the relay bank; and

receiving the query response from the relay bank by the processor of the control panel.

3. The method of claim 2 , further comprising the step of transmitting a second query response from the relay bank if the query response transmitted from the relay bank is not received by the processor of the control panel.

4. The method of claim 3 , further comprising the step of indicating an error condition if a number of query responses transmitted from the relay bank is greater than a preset threshold without the query response transmitted from the relay bank being received by the processor of the control panel.

5. The method of claim 1 , wherein the step of assigning the relay bank a network address further comprises:

sending a message to the relay bank which assigns the relay bank a network address from the processor of the control panel;

transmitting a network assignment response from the relay bank that includes information about the relay bank;

receiving the network assignment response transmitted from the relay bank by the processor of the control panel; and

storing information included in the network assignment response into a memory of the control panel.

6. The method of claim 5 , wherein the information about the relay bank includes at least one of capabilities of the relay bank, firmware revision of the relay bank, and system location of the relay bank.

7. The method of claim 6 , further comprising the step of updating the firmware of the relay bank with a firmware update file.

8. The method of claim 7 , further comprising the step of receiving the firmware update file by the processor of the control panel from one of a removable memory connected to the control panel and the Internet.

9. The method of claim 5 , further comprising the step of transmitting a second network assignment response from the relay bank if the network assignment response is not received by the processor of the control panel.

10. The method of claim 9 , further comprising the step of indicating an error condition if a number of network assignment responses transmitted from the relay bank is greater than a preset threshold without the network assignment response transmitted from the relay bank being received by the processor of the control panel.

11. The method of claim 1 , further comprising the step of configuring the relay bank after the relay bank has been assigned a network address,

wherein the step of configuring the relay bank further comprises mapping a specific function to at least one of a plurality of relays of the relay bank.

12. The method of claim 11 , wherein the step of configuring the relay bank is performed using one of the control panel and a remote control unit in communication with the control panel.

13. A method of integrating a smart component for use with a pool or spa control system, comprising the steps of:

establishing an electrical connection between the smart component and a control panel of the pool or spa control system;

discovering the smart component by a processor of the control panel; and

assigning the smart component a network address from the control panel upon discovery of the smart component.

14. The method of claim 13 , wherein the step of establishing an electrical connection between the smart component and a control panel of the pool or spa control system includes attaching the smart component to a connector of the main control panel.

15. The method of claim 13 , wherein the step of establishing an electrical connection between the smart component and a control panel of the pool or spa control system includes attaching the smart component to a relay of a relay bank that is integrated with the main control panel.

16. The method of claim 13 , wherein the step of establishing an electrical connection between the smart component and a control panel of the pool or spa control system includes attaching the smart component to a connector of an expansion panel that is integrated with the main control panel.

17. The method of claim 13 , wherein the step of establishing an electrical connection between the smart component and a control panel of the pool or spa control system includes attaching the smart component to a relay of a relay bank that is integrated with an expansion panel.

18. The method of claim 13 , wherein the step of discovering the smart component further comprises:

broadcasting a query for new devices from the processor of the control panel;

transmitting a query response from the smart component; and

receiving the query response from the smart component by the processor of the control panel.

19. The method of claim 18 , further comprising the step of transmitting a second query response from the smart component if the query response transmitted from the smart component is not received by the processor of the main control panel.

20. The method of claim 19 , further comprising the step of indicating an error condition if a number of query responses transmitted from the smart component is greater than a preset threshold without the query response transmitted from the smart component being received by the processor of the control panel.

21. The method of claim 13 , wherein the step of assigning the smart component a network address further comprises:

sending a message to the smart component which assigns the smart component a network address from the processor of the control panel;

transmitting a network assignment response from the smart component that includes information about the smart component;

receiving the network assignment response transmitted from the smart component by the processor of the control panel; and

storing information included in the network assignment response into a memory of the control panel.

22. The method of claim 21 , wherein the information about the smart component includes at least one of capabilities of the smart component, firmware revision of the smart component, and system location of the smart component.

23. The method of claim 22 , further comprising the step of updating the firmware of the smart component with a firmware update file.

24. The method of claim 23 , further comprising the step of receiving the firmware update file by the processor of the control panel from one of a removable memory connected to the control panel and the Internet.

25. The method of claim 21 , further comprising the step of transmitting a second network assignment response from the smart component if the network assignment response is not received by the processor of the control panel.

26. The method of claim 25 , further comprising the step of indicating an error condition if a number of network assignment responses transmitted from the smart component is greater than a preset threshold without the network assignment response transmitted from the smart component being received by the processor of the control panel.

27. The method of claim 23 , further comprising the step of configuring the smart component after it has been assigned a network address,

wherein the step of configuring the smart component further comprises configuring the smart component to function for particular operations.

28. The method of claim 27 , wherein the step of configuring the smart component is performed using one of the control panel and a remote control unit in communication with the control panel.

29. A method of integrating an expansion panel for use with a pool or spa control system, comprising the steps of:

establishing an electrical connection between the expansion panel and a control panel of the pool or spa control system;

discovering the expansion panel by a processor of the control panel; and

configuring the expansion panel from the control panel upon discovery of the expansion panel.

30. The method of claim 29 , further comprising the step of configuring one or more relay banks and smart components integrated with the expansion panel.