Thank you, I knew it was going to be something like that.

@Phaedrux Definitely would have helped me. I read that page six times. I'm sure that for someone with more experience reading technical diagrams it's obvious but some of us hobbyists need a little more hand holding. A single line stating that the PWM signal is produced by breaking and making the ground on Pin2 would have been all I needed.
Pin numbers at all would also be helpful for when you're asking questions FWIW.

I have this line in my end gcode and it is not working as expected. I would like it to retract 1mm but it retracts way more than that, retracting the filament beyond the bondtech extruder. If I comment out this line there is not retraction. What am I missing?

G1 Z1 E-1 F600 ;Retract Filament

TIA-Mike

I was able to figure it out. the PWM breaks the ground not the hot line. I moved the ground wire one pin over and it works great.

For future reference where could I have found this? I did not see it mentioned anywhere in the documentation that I was able to find.

Trying to run 24v 2 wire fans for the hot end and part cooler on a Duet3. No voltage between pins 1 and 4(PWM). Voltage jumper set for v_in but no reading from either position. I expected to see the voltage change when I adjust the fan control section on the dashboard in the DWC. What am I missing, here's a copy of my config.g.

Tia- Mike

;General Setup - RailCore RRF on a SBC for Duet3
G21 ;Work in millimetres
G90 ;Send absolute coordinates...
M83 ;...but relative extruder moves

; Stepper configuration
M569 P0 S1 D3 ;Drive 0 X / Rear
M569 P1 S1 D3 ;Drive 1 Y / Front
M569 P2 S0 D3 ;Drive 2 Z Front Left
M569 P3 S0 D3 ;Drive 3 Z Rear Left
M569 P4 S0 D3 ;Drive 4 Z Right
M569 P5 S1 D3 ;Drive 5 Extruder

;Axis configuration
M669 K1 ;corexy mode
M584 X0 Y1 Z2:3:4 E5 ; Map X to drive 0 Y to drive 1, Z to drives 2, 3, 4, and E to drive 5

;Leadscrew locations
M671 X-10:-10:333 Y22.5:277.5:150 S7.5

M350 X16 Y16 Z16 E16 I1 ;set 16x microstepping for axes with interpolation
M906 X1400 Y1400 Z1200 E800 I80 ;Set motor currents (mA)
M201 X2500 Y2500 Z100 E1500 ;Accelerations (mm/s^2)
M203 X24000 Y24000 Z900 E3600 ;Maximum speeds (mm/min)
M566 X800 Y800 Z100 E1500 ;Maximum jerk speeds mm/minute
M208 X290 Y290 Z280 ;set axis maxima and high homing switch positions (adjust to suit your machine)
M208 X0 Y0 Z0 S1 ;set axis minima and low homing switch positions (adjust to make X=0 and Y=0 the edges of the bed)
M92 X200 Y200 Z1600 E837 ;steps/mm

; End Stops
M574 X1 S1 P"io1.in" ;Map the X endstop to io1.in
M574 Y1 S1 P"io2.in" ;May the Y endstop to io2.in

; Thermistors
M308 S0 P"temp0" Y"thermistor" A"bed_heat" T100000 B4240 H0 L0 ;Bed thermistor - connected to temp0
M308 S1 P"temp1" Y"thermistor" A"e0_heat" T100000 B4725 C7.06e-8 H0 L0 ;duet3 e3d thermistor - connected to e0_heat

;Define Heaters
M950 H0 C"out0" T0 ;Bed heater is on out0
M950 H1 C"out1" T1 ;Hotend heater is on out1

;Define Bed
M140 H0

M307 H0 A90.0 C700.0 D10.0 S1.00 B1 ;Keenovo duet 3 configuration
M307 H1 A310.1 C144.7 D2.6 S1.00 B0 ;E3D Hotend duet 3 configuration

M570 S360 ;Hot end may be a little slow to heat up so allow it 180 seconds
M143 S285 ;Set max hotend temperature

; Fans
M950 F0 C"out5" ;Hotend fan on "out5" connector
M106 P0 S255 H1 T50 ;enable thermostatic mode for hotend fan
M950 F1 C"out4" ;Layer fan on "out4" connector
M106 P1 S0 ;Layer Fan

; Tool definitions
M563 P0 D0 H1 F1 ;Define tool 0
G10 P0 S0 R0 ;Set tool 0 operating and standby temperatures

;BLTouch
M558 P9 C"io7.in" H5 R1 F120 T6000 A5 S0.02 B1 ;define the bltouch input on io7.in
M950 S0 C"io7.out" ;define the bltouch servo on io7.out
G31 X-4 Y42 Z2.00 P25 ;set the offsets for the bltouch

T0 ;select first hot end