Solar Clock Object Attributes - Metasys - LIT-12011964 - Software Application - SCT System Configuration Tool - 16.0

SCT: System Configuration Tool Help
Product
Building Automation Systems > Configuration and Programming Tools > SCT System Configuration Tool
Document type
User Guide
Document number
LIT-12011964
Version
16.0
Revision date
2023-09-29

This object contains attributes common to many Metasys system objects. These common attributes are described in the Common Object Attributes section.

Note: For correct sunrise and sunset calculations, you must apply north/south and east/west rules. North latitudes are preceded by a plus, South latitudes are preceded by a minus. West Longitudes are preceded by a minus, East Longitudes are preceded by a plus. See Table 1.
Table 1. Solar Clock Object Attributes
Name / View Group

Attribute ID Writable (W) Configurable (C)

 Attribute Description

Latitude -- Setup

1041 W C

Defines the angular distance, in decimal degrees, of the current location north or south of the equator. Lines of latitude are also known as parallels. The International standard defines north latitudes as positive values.

Longitude -- Setup

1042 W C

Defines the angular distance, in decimal degrees, of the current location east or west of the Prime Meridian. Lines of longitude are also known as meridians. The International standard defines east longitude as positive values.

Offset -- Setup

956 W C

Defines an offset to the computed Sunrise and Sunset times. The offset value is used to compute Present Value. A positive value makes the day longer and a negative value makes the day shorter.

Periodic Update -- Setup

2192 W C

Determines how often sun position and Present Value attributes update during normal operation. The default value is 5 minutes.