Controlling outdoor lighting using time schedules

Use case

Your customer wants to automatically control the outdoor lighting.

In the morning:
- Activate the lighting when it is still dark, but only after 7:00. This means that the lighting is activated when the sun rises after 7:00.
- Deactivate the lighting at sunrise, if it was activated.
In the evening:
- Activate the lighting when it becomes dark, but only before 19:00. This means that the lighting is activated when the sun sets before 19:00.
- Deactivate the lighting at 19:00, if it was activated.

For this example, there are 2 solutions. Both are described below:

a solution with 2 time schedules
a solution with 6 time schedules

Procedure - using 2 time schedules

Creating the control and the time schedules

Create a lamp (LAMP1).
Create a daily time schedule from sunrise until sunset (TIME1).
Create a daily time schedule from 7:00 until 19:00 (TIME2).

Creating the condition

Create a condition (COND1) that uses the time schedules to control the outdoor lighting. From sunset until sunrise (TIME1 = false) and from 7:00 until 19:00 (TIME2 = true) the outdoor lighting is activated. Use the following logic:

IF (TIME1: On/off = false) and (TIME2: On/off = true)
THEN LAMP1: Value = on
ELSE LAMP1: Value = off

Filling the cabinet and addressing the device

Fill the cabinet with ...	and address the following device ...
a switching module (3X) 2U (MOD1)	lamp LAMP1.

Example

Click here to download the programming example (nhc2 file).

Procedure - using 6 time schedules

Creating the control and the time schedules

Create a lamp (LAMP1).
Create the following time schedules:
- a daily time schedule before sunrise (TIME1)
- a daily time schedule after 7:00 (TIME2)
- a daily time schedule at sunrise (TIME3)
- a daily time schedule before 19:00 (TIME4)
- a daily time schedule after sunset (TIME5)
- a daily time schedule at 19:00 (TIME6)

Creating the conditions

Create a condition (COND1) that activates the lighting before sunrise and after 7:00. Use the following logic:
- IF (TIME1: On/off = true) and (TIME2: On/off = true)
- THEN LAMP1: Value = on
- ELSE leave empty
Create a condition (COND2) that deactivates the lighting at sunrise. Use the following logic:
- IF ( TIME3: On/off = true)
- THEN LAMP1: Value = off
- ELSE leave empty
Create a condition (COND3) that activates the lighting before 19:00 and after sunset. Use the following logic:
- IF (TIME4: On/off = true) and (TIME5: On/off = true)
- THEN LAMP1: Value = on
- ELSE leave empty
Create a condition (COND4) that deactivates the lighting at 19:00. Use the following logic:
- IF (TIME6: On/off = true)
- THEN LAMP1: Value = off
- ELSE leave empty

Filling the cabinet and addressing the device

Fill the cabinet with ...	and address the following device ...
a switching module (3X) 2U (MOD1)	lamp LAMP1.

Example

Click here to download the programming example (nhc2 file).