Specifications

How to Configure the Island
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EIO0000000051 6/2010
3.1 Understanding Island Bus Addresses
How Do Modules Automatically Get Island Bus Addresses?
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 engages in data
exchange. All Advantys STB I/O modules and preferred devices engage in data
exchange and require island bus addresses.
About the Island Bus Address
An island bus address is a unique integer value in the range 1 through 127 that
identifies the physical location of each addressable module on the island. The NIM's
address is always 127. Addresses 1 through 32 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 Modules
Advantys STB I/O modules and preferred devices are auto-addressable. Enhanced
CANopen modules are not auto-addressable. They require manual address
settings.
Because they do not exchange data on the island bus, the following are not
addressed:
z bus extension modules
z PDMs such as the STB PDT 3100 and STB PDT 2100
z auxiliary power supplies, such as the STB CPS 2111
z termination plate