Example 2: Activate fans and siren

Learn how to set up Vutlan logic schemes: Adding logic schemes & Logic schemes panel

Example

For example, you have a telecommunication rack with servers and equipment. You need to activate fans inside a rack when the temperature reaches 36°C. If the temperature reaches 44°C you need to activate fans, alarm the siren for 90 seconds, and notify the administrator via e-mail and SMS.

You have:

#

Device

Description

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Device

Description

1

Temperature

Temperature sensor installed inside a rack

2

Power-1 Fun

Controls fans

3

Power-2 Alarm

Controls siren alarm

4

Mail admin

Notification via e-mail. Created by user

5

SMS admin

Notification via SMS. Created by user

1. Edit the thresholds of "High warning" and "High alarm" levels for the temperature sensor.  Set "High warning level" to 36°C and "High alarm level" to 44°C, with useless "Low" thresholds set to minimum.

2. Configure relay settings. Choose a name and set "Pulse duration", it determines the time at which the alarm will be activated.

3. Create "E-mail" and  "SMS" notifications. Follow the steps in the section: Creating notifications.

4. Go to the "Logic Schemes" menu.  Add 3 logic schemes as follows:

 

a. First logic scheme will turn on "Power-1 Fun" when the temperature reaches 36°C (high warning level).

 

b. Second logic scheme will turn on the "Power-1 Fan" when the temperature reaches 44°C (high alarm level). The "Power-2 Alarm" is switched to pulse for 90 seconds, as it was previously configured. SMS and e-mail notifications will be sent.

 

c. Third logic will turn off the "Power-1 Fan" and "Power-1 Alarm" when the temperature falls into "normal" ("Normal" level is between "low warning" and "high warning" levels. Thus below 36°C in this example).