For a device or entity to automatically perform an action when data point event, with
or without arguments, occurs, you can create a rule in Security Center.
What you should know
Event-based rules only apply to SNMP and TCP devices.
Procedure
-
From the Config
Tool home page,
open the Plugins task.
-
From the entity browser, select the Industrial
IoT plugin role and click the
Rules tab.
-
In the Rules section, click Add a
rule ().
-
In the Information section, enter a name and
description.
-
In the Conditions section, select On
event from the Condition list and provide
the following information:
- Select a source type
- Select whether the rule applies to a device, device type, entity, or
entity type. Selecting a device or entity type means that the rule
applies to all devices or entities that inherit the properties of
that type.
- Select a source
- Based on the selected source type, select a specific device, device
type, entity, or entity type to which the rule applies.
- Select an event
- Select the device event that the rule applies to.
-
(Optional) To add an argument to the rule, click Add an
argument (), and select an argument, an operator, and a value.
-
In the Actions section, select
the action that you want to occur when the condition is met.
The action can be one of the following:
- Raise an event
- Raise the custom event you select.
- Trigger an alarm
- Trigger the alarm you select.
If you added an argument to your
event, the Auto-acknowledge option would
also be available. Select this option if you want the system to
automatically acknowledge the alarm when the condition that
triggered the rule is no longer true.
- Change the state
- Change the state of the device to the state you select.
- Write on a data point
- Write a specified value to the data point you select.
-
(Optional) To add more actions to the rule, click Add
action () and configure the action.
-
Click Apply.
Results
The rule is enabled by default. To disable the rule, move
the slider to OFF.
Example
Suppose your company has printers that can send the SNMP trap
Low ink when
the ink level is low. You can create a rule for all your printers to convert the SNMP
trap into the
Security Center custom event,
Toner level low, and trigger the alarm
Replace toner, every time a
printer reports that it is almost out of ink.