Patent ID: 6629247
Filing Date: 2003-09-30
Classification: H02J

Abstract:
A method for communicating information in an Uninterruptible Power Supply (UPS) system, the method comprising the steps of:initiating transmission of a first UPS message at a first time according to a UPS controller area network message frame format from a first UPS module in the UPS system, the first UPS message having a first message type and including first priority information in a separate priority field in a first arbitration field of the first message; initiating transmission of a second UPS message at the first time according to the UPS controller area network message frame format from a second UPS module in the UPS system, the second UPS message having the first message type and including second priority information in the separate priority field in a second arbitration field of the second message; receiving the first UPS message at a third UPS module if the first priority information is a greater priority value than the second priority information; and receiving the second message at the third UPS module if the second priority information is a greater priority value than the first priority information.