Duet3D Mainboard+Daughter board+PT100



  • Hi, I'm trying to set up my hotend and heated bed, I can't get the temperature sensors to work, they reading 2000c, I'm using a daughterboard, Please some help

    ; Heaters

    M305 P1 X200
    M308 S3 P"3.spi.cs1" Y" rtd-max31865" ; configure sensor 0 as thermocouple via CS pin spi.cs0
    M950 H0 C"out1" T0 ; create nozzle heater output on out1 and map it to sensor 0
    M143 H0 S120 ; set temperature limit for heater 0 to 120C
    M307 H0 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
    M308 S1 P"spi.cs1" Y"rtd-max31865" ; configure sensor 1 as thermocouple via CS pin spi.cs1
    M950 H1 C"out0" T1 ; create bed heater output on out0 and map it to sensor 1
    M143 H1 S280 ; set temperature limit for heater 1 to 280C
    M307 H1 B0 S1.00 ; disable bang-bang mode for the bed heater and set PWM limit
    M140 H1 ; map heated bed to heater 1



  • Which version of the firmware are you using?


  • administrators

    And which Duet are you using?



  • M308 S1 P"0.spi.cs1" Y"rtd-max31865" would be correct if its connected to the main board and its a duet 3.
    It also depends on which channel you are using on the daughter board. The other channel on the daughter board is cs0.



  • @dc42
    I'm using a duet3d mainboard 6HC



  • @jay_s_uk on the daughterboard I'm using the rtd1, by the way, I'm using the temp_0 for the sensor



  • @Reaperrhs said in Duet3D Mainboard+Daughter board+PT100:

    M308 S3 P"3.spi.cs1" Y" rtd-max31865"

    is the space between " and rtd-... correct? (I know, this is like in the documentation in https://duet3d.dozuki.com/Wiki/Connecting_PT100_temperature_sensors )



  • @JoergS5
    thanks for helping, i have one question because I'm learning as I go, for the M308 you replace the existing command or create a new one?



  • @Reaperrhs I am unsure whether this is the reason, but if it is, I would replace the line without the space. I could not find the Y parameter in the source code, so I don't know whether it's only a label. But you could simply try.



  • unless your daughterboard is on can board 3 (an expansion board), the command won't work with 3. in front of spi.cs1



  • @jay_s_uk i double-check, there is no space, you can see it in my main post, I copy my configuration, the daughterboard is connected on the mainboard duet3d and my sensor is connected to the rtd1 on the daughterboard



  • Should look like this
    M308 S1 P"spi.cs1" Y"rtd-max31865"
    M950 H1 C"out1" T1

    Working on my duet 3 mainboard



  • @Carlo can you show me the hole config for heaters? just to compare with mine



  • @Reaperrhs

    Here you go
    Ignore the bold as that was a temp test with thermistor
    Eveything else is printing really well now on my setup

    ; Configuration file for Duet 3 (firmware version 3)
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool v2.1.8 on Mon May 25 2020 14:05:35 GMT+0100 (British Summer Time)

    ; General preferences
    G90 ; send absolute coordinates...
    M83 ; ...but relative extruder moves
    M550 P"Duet 3" ; set printer name
    M665 L440.470 R231.924 H419.252 B185.0 X-0.00 Y-0.00 Z0.000 ; Set delta radius, diagonal rod length, printable radius and homed height
    M666 X0.00 Y0.00 Z0.000 A0.00 B0.00 ; put your endstop adjustments here, or let auto calibration find them

    ; Network
    M552 P192.168.0.25 S1 ; enable network and set IP address
    M553 P255.255.255.0 ; set netmask
    M554 P192.168.0.254 ; set gateway
    M586 P0 S1 ; enable HTTP
    M586 P1 S0 ; disable FTP
    M586 P2 S0 ; disable Telnet

    ; Drives
    M569 P0.0 S0 ; physical drive 0.0 goes backwards
    M569 P0.1 S0 ; physical drive 0.1 goes backwards
    M569 P0.2 S0 ; physical drive 0.2 goes backwards
    M569 P0.3 S0 ; physical drive 0.3 goes backwards
    M584 X0.0 Y0.1 Z0.2 E0.3 ; set drive mapping
    M350 E16 I0 ; configure microstepping without interpolation
    M350 X16 Y16 Z16 I1 ; configure microstepping with interpolation
    M92 X160.00 Y160.00 Z160.00 E1837.00 ; set steps per mm
    M566 X1000.00 Y1000.00 Z1000.00 E40.00 ; set maximum instantaneous speed changes (mm/min)
    M203 X18000.00 Y18000.00 Z18000.00 E400.00 ; set maximum speeds (mm/min)
    M201 X1000.00 Y1000.00 Z1000.00 E120.00 ; set accelerations (mm/s^2)
    M906 X1700 Y1700 Z1700 E400 I45 ; set motor currents (mA) and motor idle factor in per cent
    M84 S45 ; Set idle timeout

    ; Axis Limits
    M208 Z-0.5 S1 ; set minimum Z

    ; Endstops
    M574 X2 S1 P"io4.in" ; configure active-high endstop for high end on X via pin io4.in
    M574 Y2 S1 P"io1.in" ; configure active-high endstop for high end on Y via pin io1.in
    M574 Z2 S1 P"io2.in" ; configure active-high endstop for high end on Z via pin io2.in

    ; Z-Probe
    M558 P5 R0.6 C"io3.in+io3.out" H5 F1200 T6000 ; set Z probe type to effector and the dive height + speeds
    G31 P500 X0 Y0 Z-0.17 ; set Z probe trigger value, offset and trigger height
    M557 R170 S20 ; define mesh grid

    ; Heaters
    M308 S0 P"temp0" Y"thermistor" T100000 B4092 ; configure sensor 0 as thermistor on pin temp0
    M950 H0 C"out0" T0 ; create bed heater output on out0 and map it to sensor 0
    M143 H0 S120 ; set temperature limit for heater 0 to 120C
    M307 H0 A122.0 C513.7 D0.5 S1.00 V24.0 B0 ; disable bang-bang mode for the bed heater and set PWM limit
    M140 H0 ; map heated bed to heater 0
    ;M308 S1 P"temp1" Y"thermistor" T100000 B4138 ; configure sensor 1 as thermistor on pin temp1
    ;M950 H1 C"out1" T1 ; create nozzle heater output on out1 and map it to sensor 1
    ;M143 H1 S300 ; set temperature limit for heater 1 to 300C
    ;M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit

    M308 S1 P"spi.cs0" Y"rtd-max31865" ; configure sensor 1 as thermocouple via CS pin spi.cs0
    M950 H1 C"out1" T1 ; create nozzle heater output on out1 and map it to sensor 1
    M143 H1 S450 ; set temperature limit for heater 1 to 450C
    M307 H1 A512.3 C269.6 D3.6 S1.00 V24.0 B0 ; disable bang-bang mode for heater and set PWM limit

    ; Fans
    M950 F0 C"out9" Q500 ; create fan 0 on pin out9 and set its frequency
    M106 P0 S0 H-1 C"Part Cooler" ; set fan 0 value. Thermostatic control is turned off
    M950 F1 C"out7" Q250 ; create fan 1 on pin out7 and set its frequency
    M106 P1 S1 H1 T45 ; set fan 1 value. Thermostatic control is turned on
    M950 F2 C"out8" Q500 ; create fan 2 on pin out8 and set its frequency
    M106 P2 S0 H-1 C"Berd Air" ; set fan 2 value. Thermostatic control is turned off

    ; Tools
    M563 P0 S"E3D Brass 0.4" D0 H1 F0:2 ; define tool 0
    G10 P0 X0 Y0 Z0 ; set tool 0 axis offsets
    G10 P0 R0 S0 ; set initial tool 0 active and standby temperatures to 0C

    ; Custom settings
    ;Retraction settings
    M207 S1.75 F2800 T1500 Z0.25

    ; Miscellaneous
    M501 ; load saved parameters from non-volatile memory



  • @Carlo thanks, let me see what I'm missing (are you using a daughterboard to??)



  • @Reaperrhs
    Yeah I have the PT100 in 0 which is the right hand terminal as you look at it are you 2 wire or 4 wire?
    if 2 do you have the jumpers on behind the terminals ?



  • @Carlo i have two wires, also the jumpers are in place, the two wires are connected in the right hand of the daughterboard



  • @Reaperrhs

    That's 0 channel, 4 connection block only 2 wire in the 2 center terminals ?



  • @Carlo yes, center terminals



  • @Reaperrhs

    M308 S1 P"spi.cs0" Y"rtd-max31865"



  • @Reaperrhs
    There is a space before the Y M308 S1 P"spi.cs0" Y"rtd-max31865"



  • @Carlo no luck so far, i have to double-check everything, also.. can you tell me whats define by the S1? because that's the only thing we have different



  • @Reaperrhs
    That's the Sensor number 1 so my bed is Sensor 0 ,hot end single hot end on my setup #1



  • maybe attach a photo of the daughterboard and wiring as you've installed it?



  • and the current heater config please


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