Schneider Electric 890USE17700 manual Auto-Addressing

Configuring the Island Bus

Auto-Addressing

Introduction	Each time that the island is powered up or reset, the NIM automatically assigns a
	unique island bus address to each module on the island that will engage in data
	exchange. All Advantys STB I/O modules and preferred devices engage in data
	exchange and require island bus addresses.
About the Island	An island bus address is a unique integer value in the range 0 through 127 that
Bus Address	identifies the physical location of each addressable module on the island.
	Addresses 0, 124, 125 and 126 are reserved. Address 127 is always the NIM’s
	address. Addresses 1 through 123 are available for I/O modules and other island
	devices.
	During initialization, the NIM detects the order in which modules are installed and
	addresses them sequentially from left to right, starting with the first addressable
	module after the NIM. No user action is required to address these modules.

Addressable The following module types require island bus addresses:

ModulesAdvantys STB I/O modules preferred devices standard CANopen devices

Because they do not exchange data on the island bus, the following are not addressed:

bus extension modules

PDMs such as the STB PDT 3100 and STB PDT 2100

￿empty bases termination plate

46 890USE17700 April 2004