Topic: DMD0049

(CONTACT) - if Greater Than

The if Greater Than instruction begins either a new rung, or a new branch in an existing rung, with a normally open comparative contact.

The If Greater Than contact mimics the behavior of a momentary, normally open relay. When the value of the left side is greater than the value of the right side, the contacts are Closed, allowing power flow. When the value of the left side is NOT greater than the value of the right side of the assigned elements are not equal, the contacts are Opened, interrupting power flow.

Parameters:

Note: Use the F9 key (Element Browser) or Down-Arrow key (Auto-Complete) at any time to see a complete list of the memory locations that are valid in the current field of the instruction.

Left Element - designates the first element to compare. This can be any constant value or any readable numeric location

Right Element - designates the second element to compare. This can be any constant value or any readable numeric location

Note: If either left or right side values contain a Time value, the status display will show both values in Time format.

Use the TAB key to move the edit cursor from the Left Element to the Right Element

Status Display:

See Also:

• (CONTACT) - if Equal

• (CONTACT) - if Not Equal
   

• (CONTACT) - if Greater Than

• (CONTACT) - if Greater Than or Equal
   

• (CONTACT) - if Less Than

• (CONTACT) - if Less Than or Equal

Rung Example: