@phaedrux The config file you sent made me realize I need to replace what I had labelled with "bedheat" and "e0heat" with the actual ports they were assigned to, so after changing them to the corresponding ports it worked. Thanks a lot!

Hello,

I'm having an issue where my heatbed is not visible in Duet Web Control using RRF3.
I have pasted my config file below? I'm using Duet 3 6HC and I have the heat bed connected to the dedicated heatbed connectors, which is powered through jumpers from the VIN and GND connectors for the whole board. I have read through this thread regarding the same issue I am having but was not able to resolve the problem.

; General preferences
G90                              ; Send absolute coordinates...
M83                              ; ...but relative extruder moves

; Network
M550 PUltiDuet                 ; Set machine name
M552 P0.0.0.0 S1               ; Enable network and acquire dynamic address via DHCP
M586 P0 S1                     ; Enable HTTP
M586 P1 S0                     ; Disable FTP
M586 P2 S0                     ; Disable Telnet

; Drives
M569 P0 S0                       ; Drive 0 goes backwards
M569 P1 S0                       ; Drive 1 goes forwards
M569 P2 S0                       ; Drive 2 goes backwards
M569 P3 S0                       ; Drive 3 goes forwards
M350 X16 Y16 Z16 E16 I1          ; Configure microstepping with interpolation
M92 X80 Y80 Z400 E369            ; Set steps per mm
M566 X900 Y900 Z12 E120          ; Set maximum instantaneous speed changes (mm/min)
M203 X18000 Y18000 Z2400 E2700   ; Set maximum speeds (mm/min)
M201 X3000 Y3000 Z500 E250       ; Set accelerations (mm/s^2)
M906 X1200 Y1200 Z1200 E1150 I30 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30                          ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1                 ; Set axis minima
M208 X225 Y220 Z305 S0           ; Set axis maxima

; Endstops
M574 X1 S1 P"!io4.in"                        ; configure active-high endstop for low end on X via pin xstop
M574 Y2 S1 P"!io3.in"                        ; configure active-high endstop for high end on Y via pin ystop
M574 Z2 S1 P"!io1.in"                        ; configure active-high endstop for high end on Z via pin zstop

; Z-Probe
M558 P0 H5 F120 T6000            ; Disable Z probe but set dive height, probe speed and travel speed
M557 X15:215 Y15:210 S20         ; Define mesh grid

; Heaters
M308 S0 P"spi.cs0" Y"rtd-max31865" A"bedheat" R395 F50                            ; create bed heater output on bedheat and map it to sensor 0
M143 H0 S120                                   ; disable bang-bang mode for the bed heater and set PWM limit
M140 H0                                            ; map heated bed to heater 0

M308 S1 P"spi.cs1" Y"rtd-max31865" A"e0heat" R395 F50                              ; create nozzle heater output on e0heat and map it to sensor 1
M143 H1 S280                                   ; disable bang-bang mode for heater  and set PWM limit
M301 H0 S1.00 P209.7 I17.817 D970.2 T0.4 W180 B30

; Fans
M950 F0 C"out4" Q500                               ; create fan 0 on pin fan0 and set its frequency
M106 P0 S0 H1                                     ; set fan 0 value. Thermostatic control is turned on
M950 F1 C"out7" Q500                               ; create fan 1 on pin fan1 and set its frequency
M106 P1 S0.65 H-1 T50

M950 H0 C"bedheat" T0  
M950 H1 C"e0heat" T1 

; Tools
M563 P1 S"Extruder" D0 H1 F0                      ; define tool 0
G10 P1 X0 Y0 Z0                                    ; set tool 0 axis offsets
G10 P1 R0 S0 

; Automatic saving after power loss is not enabled

; Custom settings are not configured

M575 P1 S1 B57600 

M501    

I also have not been able to control the fan speeds of the part cooling fan, which is a 2-Pin connector plugged into the OUT4GND and V_OUTLC1 on the OUT 4 port or also pair the temperature readers from the PT100 sensor in the hotend to the extruder tool.