chopperprop
Member
I am having trouble capturing data from an encoder when comparing it to an analog signal from a pressure sensor. The Pressure wave in the trend is consistent for every stroke of the machine as I am measuring a rise and fall of pressure with a pressure transducer 4-20 ma signal input to a analog input card being processed by a 1747-L551 processor. I am using a 960 gray code encoder being changed in the ladder logic to a decimal conversion and opening a window to look at the pressure when the machine is in a certain position. The problem is that the output bit for the window is not consistent with every stroke of the machine. When the pressure wave is at its peak position i need to capture the reading,and when comparing the pressure to the output bit and the overall rise and fall of the encoder signal the window shows up at different times.
Encoder, Pressure sensor are on the same rack as the processor.
Thanks in advance for any help on this.
Encoder, Pressure sensor are on the same rack as the processor.
Thanks in advance for any help on this.