Nematron Pointe Controller - Manual (Page 340)

Appendix C: Ladder Diagram Block Reference Pointe Controller User Guide
338
C.1 Relays and Coils
C.1.1 Normally Open Contact (XIC)
When used in a Ladder Diagram, this block acts as a relay that controls the
passing of the rung state from the left to the right. The state is passed only if the
value of the associated Bit tag is true or 1.
Select the tool (from the Relays and Coils toolbar) and click on a ladder rung
to insert the following block:
Once the block is inserted, you can double-click on it to configure it.
Functional Description
When the input state from the left becomes on, the value of the associated Bit
tag is checked. If the tag is true or 1, then the output state to the right is turned
on. If the tag is false or 0, then the output state is kept off.
The relay is checked every time the ladder is scanned , so long as the input state
remains on.
Configuration Reference
Any Bit tag may be associated with the block: %IX, %MX, %QX, or T_DONE.
C.1.2 Normally Closed Contact (XIO)
When used in a Ladder Diagram, this block acts as a relay that controls the
passing of the rung state from the left to the right. The state is passed only if the
value of the associated Bit tag is false or 0.
Select the tool (from the Relays and Coils toolbar) and click on a ladder rung
to insert the following block:
Once the block is inserted, you can double-click on it to configure it.