Sample Project Data Types - 1756-PLS

Use the Tag Editor in the
Logix Designer
 application to make configuration changes to the 1756-PLS module. A sample program, supplied with this version of the software, provides a set of data types for use by a single 1756-PLS module as well as a sample ladder logic program. It is recommended that data types be created by copying them from the sample project for the 1756-PLS module. Then use the
Logix Designer
 application Tag Editor to edit the data types for your application.
These features are configured, enabled or disabled through the messaging portion of the
Logix Designer
 application. Follow the messaging portion of the sample program for details about a specific instruction. Refer to the
ControlLogix Programmable Limit Switch Module User Manual
 for more information on configuring the features of this module using the sample project file.
IMPORTANT:
If writing data types for your 1756-PLS module instead of using the sample ladder logic program as previously mentioned, write the data members exactly, including names and capitalization as they are listed in the sample project file.
Changing values and sending the data types to the 1756-PLS module via message instructions causes the 1756-PLS module to perform specific functions. For example, set the ZeroOffset position. located in the Axis data type, or adjust output behavior according to the resolver’s RPM.
There are three general categories of data types in the sample project file. They are:
Configuration Tags
  • 1756-PLS Configuration
  • 1756-PLS Limit Switch Configuration containing the Set Point configuration members.
Run Time Tags
  • 1756-PLS Input Data
  • 1756-PLS Output Data
Diagnostic/Commissioning Tags
  • 1756-PLS Offset Data containing:
  • 1756 PLS Limit Switch Offset data type and the 1756 PLS Limit Switch Offset Element Input substructure
  • 1756-PLS Input Registration containing:
  • 1756-PLS module’s Registration data type and the Input Registration Element and the Registration Input substructures
Refer to the
ControlLogix Programmable Limit Switch Module User Manual
for more information on using the Tag Editor of the
Logix Designer
 application to configure this set of features.
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