# Changing Substation ES Parameters

Before starting the Substation ES region, you might have to change certain installed default parameters to help identify the target environments and personalize settings to suit operational requirements or site standards.

## Mandatory Interface Selection

No host-side system interfaces have been activated for the System Initialization Parameters (SIP) of Substation ES. Proceed to your selected SIP member (whose default is SXSSIP$1) and activate the interfaces by uncommenting the appropriate keyword INTF-MEMBER.

## Generally Useful Interface Changes

Avoid changing Substation ES parameters before installation. However, changes of certain parameters are useful and can help identify the target environments and personalize settings to suit operational requirements or site standards.

The following table lists the useful interface parameters.

Parameter | Location
--- | ---
DESCR | The SIP member of each interface.
CONSOLE-MSG | Console output selection.

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