Connectors; Left Open Pins; Comments - ABB UMC100.3 Manual

C U S T O M A P P L I C AT I O N E D I T O R M A N U A L 13
—
Application elements
—

Connectors

Connectors are most useful for connecting two functions blocks which are far away from each other
and would require many crossings. Two connectors with the same name are equal to a direct wire.
To use connectors follow these steps:
1. Drag a connector element from the library window and drop onto the worksheet
2. Double click on the connector and type in the name
3. If the left side of the connector is wired it becomes a sending connector. If the right side of the connector gets wired it
becomes a receiving connector. To complete the connection add another connector and connect it with the target pin.
—

Left Open Pins

Left open pins are generally considered as logical 0 or 0. E.g. the output Q of a logical AND function block will never be logical
1 if one of its input pins is left open. If a parameter like a delay or counter value is left open it is considered as 0.
—

Comments

Comments can be used to describe the implemented logic for later reference. To add a comment drag it from the library
window and drop it onto the worksheet. Double click on the comment field to change the text. Then press return.
To change the text size or the font colour right click on the comment and select the Font context menu item.