Automation Server Reset Functions

There are four different types of reset for the automation servers: warm start, cold start, reset, and reset to DFU mode. Depending on the type of reset, the automation server can be reset using the reset button or a command from WorkStation.

You can use a straigthened segment of a paper clip or a similar tool to press the reset button.

Type	Triggered by	Description	Variable values	Configuration, Historic database	IP settings
Warm start	Command from WorkStation	Stops the automation server application and then restarts the application.	Affected according to the configured retain levels for the variables	Retained	Retained
Cold start	Command from WorkStation	Stops the automation server application and then restarts the application.	Affected according to the configured retain levels for the variables	Retained	Retained
Reset	Short push on Reset button Power return	Stops the automation server application and the operating system and then restarts the operating system and the application.	Affected according to the configured retain levels for the variables	Retained	Retained
Reset to DFU mode	3 pushes on Reset button within 2 seconds	Puts the automation server into DFU mode, which enables Device Administrator to communicate with the server.	Not applicable	Not retained	Not retained

Type

Triggered by

Description

Variable values

Configuration, Historic database

IP settings

Warm start

Command from WorkStation

Stops the automation server application and then restarts the application.

Affected according to the configured retain levels for the variables

Retained

Cold start

Command from WorkStation

Stops the automation server application and then restarts the application.

Affected according to the configured retain levels for the variables

Retained

Reset

Short push on Reset button

Power return

Stops the automation server application and the operating system and then restarts the operating system and the application.

Affected according to the configured retain levels for the variables

Retained

Reset to DFU mode

3 pushes on Reset button within 2 seconds

Puts the automation server into DFU mode, which enables Device Administrator to communicate with the server.

Not applicable

Not retained

Parameters and variables that are used to define the system or contain important data in the automation server can be retained in a permanent memory. These parameters and variables are automatically saved in the event of power failure, or request for restart and are reloaded after startup.

You can define what kind of events that retention for the parameters and variables should apply.

Retain Levels for Variables

Variables have a configurable retain level, which controls if the value of the variable is retained after a restart of the automation server. There are three retain levels:

No
Warm start
Cold start

The following table lists what is retained after a warm start, cold start, or reset based on the configured retain level.

Tabelle: Retained Variable Values Depending on Reset Type and Retain Level

Reset type	Retain level: No	Retain level: Warm start	Retain level: Cold start
Warm start	Default value ^a Values configured by a user or application are lost.	Variable retains last value configured by a user. Values configured by an application are retained.	Variable retains last value configured by a user. Values configured by an application are retained.
Cold start	Default value ^a Values configured by a user or application are lost.	Variable retains last value configured by a user. Values configured by an application are lost.	Variable retains last value configured by a user. Values configured by an application are retained.
Reset	Default value ^a Values configured by a user or application are lost.	Variable retains last value configured by a user. Values configured by an application are retained.	Variable retains last value configured by a user. Values configured by an application are retained.

Reset type

Retain level:

Warm start

Retain level:

Cold start

Warm start

Default value ^a

Values configured by a user or application are lost.