Configuring the Island Bus

RST Functionality

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 The RST

 

Button, p. 55) for at least two seconds. The RST button is enabled only in edit mode.

 

In protected mode (See Protecting Configuration Data, p. 164), the RST button is

 

disabled; pressing it has no effect.

 

 

 

Note: Network settings, such as the fieldbus baud and the fieldbus node ID, remain

 

unaffected.

 

 

 

 

CAUTION

 

 

 

 

 

UNINTENDED EQUIPMENT OPERATION/CONFIGURATION DATA

 

 

OVERWRITTEN—RST BUTTON

 

 

Do not attempt to restart the island by pushing the RST button. Pushing

 

 

the RST button (See The RST Button, p. 55) causes the island bus to

 

 

reconfigure itself with factory default operating parameters.

 

 

Failure to follow this precaution can result in injury or equipment

 

 

damage.

 

 

 

 

 

 

RST

The following scenarios describe some of the ways that you can use the RST

Configuration

function to configure your island:

Scenarios

Restore factory-default parameters and values to an island, including to the I/O

￿modules and the CFG port (See Port Parameters, p. 33).

Add a new I/O module to a previously auto-configured (See Auto-Configuration, p. 49) island.

If a new I/O module is added to the island, pressing the RST button will force the auto-configuration process. The updated island configuration data is automatically written to Flash memory.

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Schneider Electric 890USE17700 manual RST Functionality, Unintended Equipment OPERATION/CONFIGURATION Data, Rst

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