Reading Parameters from a Powerflex 4 Class VFD, 22-COMM-E, ML1400

What is a method to read parameters (Ex. b001 Output Freq and b003 Output Current) with a MicroLogix 1400?

What does work is a 500CPU Read type MSG to read three integers (N41:0-N41:2) from the VFD. This reads the output frequency.

Attempting to read more than three integers causes a run time error message.

Thank you for your help.

I found it. I wasn't using an RIX (instead of RI) when using a CIP Generic MSG instruction.