# Overview

The PD2K Integrated Rockwell Software Development Kit (SDK) is a collection of sample code for easily controlling a PD2K proportioner through a Rockwell PLC. The code is designed to simplify many common integration challenges, allowing you to build a working system very quickly.

## About the PD Platform

The ProMix PD Platform is a family of electric dosing pump systems utilizing positive displacement (PD) technology. More information can be found on the Graco product page.

This SDK is specifically designed for the PD2K Integrated product (also known as PD2K Auto Spray), which combines the proportioning equipment with an applicator and electrostatic controller, all controlled from the same Communication Gateway Module (CGM). SDKs for the other ProMix PD products can be found at help.graco.com.

### Related Manuals

These manuals are available for download at www.graco.com.

Manual number | Description
--- | ---
3A4129 | ProMix PD2K Proportioner Integrated for Automatic Spray Applications, Installation
3A4128 | ProMix PD2K Integrated for Automatic Spray Applications, Operation
334494 | ProMix PD2K CGM Installation Kit, Instructions/Parts

## Compatibility

The examples in this SDK are built using Rockwell Studio 5000 Logix Designer® v32.04. The GracoPd2kInt_Example.ACD project is built for a 5069-L306ER CompactLogix™ Controller using firmware v32. If using a different controller, the model may be changed using Logix software.

All code is compatible with CompactLogix™ and ControlLogix™ controllers firmware v32 and later. Backwards compatibility with earlier firmware versions may be possible, but is not tested and not guaranteed.

All code is written in Ladder language. The main reason for this is portability - Rockwell’s licensing structure supports Ladder at the base level, but requires an upgraded license to work with other PLC languages. Writing all code in Ladder lets any PLC programmer view the code and modify it if needed, regardless of which license they use.