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 engage in data exchange.

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. Address

 

127 is always the NIM’s address. Addresses 1 through 12 are available for

 

addressable Advantys STB modules. The remaining addresses are not used in a

 

basic island configuration.

 

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.

Addressable Only the Advantys STB I/O modules in the basic segment require island bus

Modules addresses.

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

PDMs

￿empty bases termination plate

30

890USE19600 April 2004

Page 30
Image 30
Schneider Electric 890USE19600 Version 1.0 Auto-Addressing, About the Island, Bus Address, Basic island configuration