Fig. 1.
(a) LabVIEW Code for PID Controller downloaded to NI-USB-7855R and (b) Electrical diagram of the current source part for one output. It shows the connection from the analog output (X1_AO0) of NI-USB-7855R to the current input (COIL_OUTPUT_X1+) of one coil installed on the outer surface of MSR.