PACMotion VFD Syllabus
Section 7
GFK-3167B
December 2020
User Defined Function Block
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PROFINET (Note 6)
25
7.1
Modbus/TCP Connection Timeout
The VFD Fieldbus interface allows the user to set the Communication Loss Timeout and
Communication Loss Action values. These parameters are at addresses P5-05 and P5-06
respectively. The Timeout units are 1 = 0.1 sec and the valid range is from 0.0 (disable) to
5.0 seconds. A setting of 0.0 seconds will allow the VFD to continue running if
communications is lost.
7.1.1
Drive Parameter Access
The Modbus/TCP Interface allows the user to read/write the drive parameters. To perform
this function, the user can directly access the parameter. Simply add the parameter
number to the Modbus/TCP offset of 400000.
For example:
Read parameter P1-01 (Maximum Frequency), perform the following
Read Modbus/TCP Register 400101 value (scaling in 0.1 Hz).
Write parameter P1-01 (Maximum Frequency) = 60.0 Hz, perform the following
Write to Modbus/TCP Register 400101 value = 600 (scaling in 0.1 Hz)
