PACMotion VFD Syllabus
Section 8
GFK-3167B
December 2020
User Defined Function Block
–
Modbus/TCP (Note 5)
30
7.
Assign input and output node variables.
This UDFB is an example of how the Modbus/TCP functions of the VFD can be controlled/monitored.
Each Instance of the UDFB must have a different and unique Instance Name (VFD1 below). Various
node names are given to reflect the function they represent.
Figure 26: Assign Input and Output Node Variables