interpretation of incoming data from G120

[adam_lhadi]

Hi

as a beginner am learning about the G120 (CU240e-2pn) controlled by 1200plc

1-how can i interpret the hex values coming from the vfd (e.g.motor temperature 16#1357 to real value )

for the temperature and the ather output data

2-i noticed that when observing the values online from the vfd they are fixed but their hex values sent to plc are changing like when voltage is 201.5 its hex value is not fixed it keeps changing.

3- in the first run when the control word is 16#0000 if i set it to 16#047f and set the speed to e.g 500 the motor won't run til i change it to 16#047e then to 16#047f then the motor runs

4-is there a direct way to know the associated addresses for each vfd output data (pic) in the first data address is iw100 the athers are iw102 iw106 iw114 and that is by conclusion ,is ther another way to tell you directly that each row is connected to that address according to the start address configured from telegram

kind regards

 

[L D[AR2P#0.0]]

1. Values to/from the G120 are scaled according to the reference values where 16384(decimal)=reference value (see P200 onwards for ref values).
2. Usually due to update rate from the G120 to your laptop
3/4 Create a data type for the control word, speed etc and use that in your tag table and assign the base address of each G120. Read the manual concerning the control word to see which bits need to be on to run the drive.