Microblock family

Misc microblocks

Icon and symbol

What it does

A Sunrise/Sunset microblock calculates the time the sun will rise and set based on location and time zone information entered in the Snap application or on the Properties page.

The sunrise and sunset outputs produce today's sunrise and sunset times. The output values are in minutes since midnight. The daylight output turns on when the current time falls between sunrise and sunset and turns off when the current time is before sunrise or after sunset.

Reference Name

Use the default reference name unless you want a more descriptive name for graphics or network links.

Limitations:

• lower case only
• limited to 40 characters
• cannot begin with a number
• must be unique within a control program

Editing Privilege

Preset - Each microblock property has an appropriate privilege or role assigned to it. You can use Global Modify in the i-Vu® interface to find out what the actual privilege is.

CAUTION  If you change the Editing Privilege from Preset, the privilege you select will be used for all properties of this microblock, which is not always desirable.

Degrees/Minutes

Enter settings accurately to ensure that the correct sunrise and sunset times are calculated. See an atlas or your local weather station to determine this information for your area. Enter the longitude for a location in the Western Hemisphere (North or South America) as a negative number.

Show Property Page Text

Check to show this microblock's value on the equipment's Properties page.

Property Page Text

You can edit the microblock description that appears on the Properties page. See "Editing Properties page text using special characters" and "Formatting a microblock property" in Snap Help.