Specifications

How to Configure the Island
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31004624 8/2009
How to Overwrite Flash Memory with the RST Button
Introduction
The RST function allows you to reconfigure the operating parameters and values of
an island by overwriting the current configuration in Flash memory. RST functionality
affects the configuration values associated with the I/O modules on the island, the
operational mode of the island, and the CFG port parameters.
The RST function is performed by holding down the RST button (see page 53) for at
least two seconds. The RST button is enabled only in edit mode. In protected mode
(see page 106), the RST button is disabled; pressing it has no effect.
NOTE: Pressing the RST button does not affect network settings.
RST Configuration Scenarios
The following scenarios describe some of the ways that you can use the RST
function to configure your island:
z Restore factory-default parameters and values to an island, including to the I/O
modules and the CFG port (see page 32).
z Add a new I/O module to a previously auto-configured (see page 46) island.
If a new I/O module is added to the island, pressing the RST button forces the
auto-configuration process. The updated island configuration data is
automatically written to Flash memory.
CAUTION
UNINTENDED EQUIPMENT OPERATION/CONFIGURATION DATA OVER-
WRITTEN—RST BUTTON
Do not attempt to restart the island by pushing the RST button. Pushing the RST
button (see page 53) causes the island bus to reconfigure itself with factory default
operating parameters.
Failure to follow these instructions can result in injury or equipment damage.