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Today I'm highlighting a couple of eleven year old MicroLogix programs showing how to communicate to a PowerFlex 4.
Back in 2004 many small OEM's were approaching me about using the MicroLogix to control the small PowerFlex 4 series of drives over a serial connection.
- Using a 22-SCM-232 which converted DF1 to Modbus
- Using the latest version MicroLogix which supported Modbus natively.
The result was these two “proof of concept” demos.
To create them, I relied heavily on code found in the PowerFlex and SCM manuals, which at the time contained several errors that made getting the code working quite challenging.
[artadrr-pf-e]Posted on my original website back on February 9th, 2004, you can now find the original articles right here on The Automation Blog using the below links:
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