MQTT JSON Schema A Driver Guide - Disable Device (Actions that are Specific to the MQTT JSON Schema A Driver)

Disable Device

Associated with: MQTT JSON Schema A Device items

Security permission required to access this pick action: Disable Points

NOTE: The 'Disable...' series of pick actions are assigned the 'Disable Points' security permission so that users with that permission can disable database items without necessarily being given the full 'Configuration' security permission. A user, such as an operator, whose User Account is given the 'Disable Points' permission but not the 'Configure' permission can disable a database item, but is prevented from altering the rest of that item's configuration.

Use this pick action to take an MQTT JSON Schema A Device item Out of Service.

The Disable Device pick action clears the Device's In Service property, so that the Device is no longer active.

You might want to disable a Device database item, for example, if Geo SCADA Expert has detected a problem with the publishing device that the database item represents. Once the problem has been rectified, use the Enable Device pick action to place the Device back In Service.

Geo SCADA Expert logs an entry in the Event Journal whenever either pick action is used. The entry indicates whether the Device has been enabled or disabled.

Be aware that disabling an MQTT JSON Schema A Device also de-activates its dependants, although their configuration will remain unchanged. Dependants include items such as points that are associated with the Device.

When the Device is disabled, Geo SCADA Expert unsubscribes from the topic, and so no longer receives messages relating to that topic.

If using this pick action with the Automation Interface, you need to specify the method name Disable.