Point Identifiers and Descriptions
Points have two identifiers, a Point ID and a Long Point ID, and two descriptions, a Short Description and a Long Description that are assigned at point creation (either user-provided or auto-created by the system). Once a point has been created, its Point ID cannot be changed.
CygNet naming standards for point identifiers are as follows:
| Component | Valid Character Set | Limits |
|---|---|---|
|
Point ID |
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z (uppercase) 0 1 2 3 4 5 6 7 8 9 ! (exclamation point) # (pound) $ (dollar) % (percent) ^ (caret) & (ampersand) _ (underscore) = (equals) + (plus) [ (opening bracket) ] (closing bracket) { (opening brace) } (closing brace) | (vertical pipe) < (less than) > (greater than) |
8 character limit No spaces |
|
Long Point ID |
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z (uppercase) 0 1 2 3 4 5 6 7 8 9 ! (exclamation point) # (pound) $ (dollar) % (percent) ^ (caret) & (ampersand) _ (underscore) = (equals) + (plus) [ (opening bracket) ] (closing bracket) { (opening brace) } (closing brace) | (vertical pipe) < (less than) > (greater than) |
31 character limit No spaces |
Note: The dash (-) and the tilde (~) are also valid characters but are not recommended.
Auto-Creation of Point IDs and Descriptions
When you create a point, you can specify values for the Point ID, Long Point ID, Short Description, and Long Description fields, and the system will not overwrite the values provided. If you leave these fields blank however, the system will automatically assign values for each field as follows:
- The Point ID is auto-numbered, and contains a maximum of 8 characters.
- The Long Point ID is a concatenation of the point’s Facility, an underscore, and UDC (Facility_UDC), and contains a maximum of 31 characters.
- The Short Description and Long Description are set to the description of the UDC. Because the UDC description can contain up to 40 characters, the short description will sometimes need to be truncated, whereas the long description will not.
- Short Description contains a maximum of 24 characters
- Long Description contains a maximum of 80 characters
