Instruction Manual

Pointe Controller User Guide Chapter 5: Developing Controller Programs
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5.9 Types of Ladder Diagram Blocks
To make it easier to select from the 79 available Ladder Diagram blocks, they are
grouped into nine block types or libraries. These libraries can be accessed by
selecting the corresponding tools from the Ladder Diagram toolbar:
Clicking on a library toolbar button will make that library’s own toolbar appear
just below the main Library Diagram toolbar. From there, you can select
individual blocks and place them in your diagram.
TIP: A complete description for each block – including configuration details – can
be found in Appendix C, “Ladder Diagram Block Reference.” Direct page links are
provided below.
5.9.1 Relays and Coils
Selecting this library tool activates the Relays and Coils toolbar, which
allows the placement of relay contacts and coil-type objects in your
ladder diagram.
This library includes the following blocks:
TOOL DESCRIPTION FOUND ON...
Normally Open Contact Page 338
Normally Closed Contact Page 338
Rising Edge Relay Page 339
Falling Edge Relay Page 339
Output Coil Page 340
Negated Output Coil Page 341
Latched Coil Page 341
Unlatched Coil Page 342
Rising Edge Coil Page 343
Falling Edge Coil Page 343
Falling Edge Detector Page 344