mis-assigned heaters (setting up multiple hotends)

[shadowphile]

I've been using one hotend for a long time with no problem. I just added a second one but the heaters don't line-up with the sensors now. I detach the sensor connection at hotend 1 but the 2nd hotend reports 2000deg. I detach the sensor from hotend 2 then the bed (H0) sensor reports 2000deg. I detach the bed sensor and heater 1 now reports a bad value.
Here's the tech info: followed by my config file:
Board: Duet 2 Ethernet (2Ethernet)
Firmware: RepRapFirmware for Duet 2 WiFi/Ethernet 3.2.2 (2021-02-11)

; Configuration file for Duet WiFi (firmware version 3.00)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Sat Mar 13 2021 14:27:17 GMT-0800 (Pacific Standard Time)
; modified to match older config file

; General preferences
G90                                         ; send absolute coordinates...
M83                                         ; ...but relative extruder moves
M550 P"MDCDelta"                            ; set printer name
M665 R247.3721 L450 B160 H384 X0 Y0 Z0		; set delta radius, diagonal rod length, printable radius, homed height, and x,y, and z tower rotations.
;M666 X0 Y0 Z0                               ; put your endstop adjustments here, or let auto calibration find them

; Network
M552 S1 P192.168.1.15                       ; enable network and force IP address
M586 P0 S1                                  ; enable HTTP
M586 P1 S0                                  ; disable FTP
M586 P2 S0                                  ; disable Telnet

; Drives
M569 P0 S1                                  ; physical drive 0 direction
M569 P1 S0                                  ; physical drive 1 direction
M569 P2 S0                                 	; physical drive 2 direction
M569 P3 S0                                  ; physical drive 3 direction
M569 P4 S0                                  ; physical drive 3 direction

M584 X0 Y1 Z2 E3:4                          ; set drive mapping
M350 X16 Y16 Z16 E16:E16 I1                	; configure microstepping with interpolation
M92 X200 Y200 Z200 E2700:2700					; Set axis steps/mm   These settings for Zesty Nimble extruder

; eSun Black PLA+   E2699 (at 1mm/sec thru .6mm nozzle)
; Hatchbox White PLA E2669
; Proto-pasta Iron PLA E2669
; Matteforge Gray E2776 (at 5mm/sec through .6mm nozzle)
; White PETG 2776 (at 5mm/sec through .6mm nozzle)
; Mika3D Silk Copper E2722 (at 5mm/sec through .6mm nozzle)
; PLA+ E2669 ; (at 5mm/sec through .4mm nozzle)
; Priline wood E2812
; PLA 2638? (lots of pla prints at this setting but does not match the makerbot pla below)
; Ninjaflex: E2814
; Botfeeder Filastic: E2777
; NinjaTek Armadillo: E2666
; Makerbot PLA: E2614  (includes all hard materials ie wood, stone, pla, hard nylons)
; Taulman PCTPE: E2614

M566 X700 Y700 Z400 E40:40	; Maximum instant speed changes mm/minute
M203 X19980.00 Y19980 Z15000 E1020:1020 ; set maximum speeds (mm/min)
M201 X3000 Y3000 Z1000 E120:120	; Accelerations (mm/s^2) (120 for zesty, 1000 normally)
M906 X1000 Y1000 Z1000 E500:500	; Set motor currents (mA) (500 for Zesty, 1200 normally)
M84 S30                                     ; Set idle timeout

; Axis Limits
M208 S1 Z-0.2			; set minimum Z

; Endstops
M574 S1 X2 P"xstop"
M574 S1 Y2 P"ystop"
M574 S1 Z2 P"zstop"

; Z-Probe
M558 P5 C"z_probe.in" H5 F120 T3000			; create z probe line and type
G31 P500 X0 Y0 Z0                           ; set Z probe trigger value, offset and trigger height
M556 S50 X0 Y0 Z0                           ; set orthogonal axis compensation parameters
;M557 R85 S20                                ; define mesh grid

; temp sensors
M308 S0 P"bed_temp" Y"thermistor" T100000 B4349   ;sets bed sensor type
M308 S1 P"spi.cs1" Y"rtd-max31865"				;sets extruder 1 sensor type
M308 S2 P"spi.cs2" Y"rtd-max31865"				;sets extruder 2 sensor type

; Heaters
M950 H0 T2 C"bedheat"  	;make bed heater
M950 H1 T0 C"e0heat"	;make extruder #1 heater
M950 H2 T1 C"e1heat"	;make extruder #2 heater
M140 H0  ;assign bed heaters 

; PID settings
M307 H0 R0.517 C424 D4.49 S1.00 V24.2           ;from a run done on 3/13/2021

; Limits
M143 H0 S120 A2							; temperature limit for bed to 120°
M143 H1 S300 A2                          ; set temperature limit for heater 1 to 300C
M143 H2 S300 A2                          ; set temperature limit for heater 2 to 300C

; Fans
MM950 F0 C"fan0" 
M106 P0 S0 I0 F500 H-1                      ; set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off

; Tools
M563 P0 D0 H1                              	; define tool 0  (old: M563 P0 D0 H1)
G10 P0 X-11 Y0 Z0                           ; set tool 0 axis offsets
G10 P0 R50 S50                              ; set initial tool 0 active and standby temperatures to 0C
M563 P1 D1 H2								; define tool 1
G10 P1 X11 Y0 Z0                           	; set tool 1 axis offset
G10 P1 R60 S120                              ; set initial tool 1 active and standby temperatures to 0C

; Custom settings are not defined
M575 P1 B57600 S0 ; set serial port parameters for messages f

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

[shadowphile]

oops, I had a typo: here is the heater/sensor mis-match table:
heater 1 is reporting the bed sensor
heater 2 is reporting heater 1 sensor
bed is reporting the heater 2 sensor

[shadowphile]

oh, and when I try to select T1 the board seems to reset!

[droftarts]

@shadowphile It's this bit:

; temp sensors
M308 S0 P"bed_temp" Y"thermistor" T100000 B4349   ;sets bed sensor type
M308 S1 P"spi.cs1" Y"rtd-max31865"                ;sets extruder 1 sensor type
M308 S2 P"spi.cs2" Y"rtd-max31865"                ;sets extruder 2 sensor type
 
; Heaters
M950 H0 T2 C"bedheat"  	;make bed heater
M950 H1 T0 C"e0heat"	;make extruder #1 heater
M950 H2 T1 C"e1heat"	;make extruder #2 heater

Your heaters in M950 (defined by H#) are using the wrong temperature sensors (defined by M308 S#, used in M950 by T#). Change Heaters to:

; Heaters
M950 H0 T0 C"bedheat"  	;make bed heater
M950 H1 T1 C"e0heat"	;make extruder #1 heater
M950 H2 T2 C"e1heat"	;make extruder #2 heater

Ian

[droftarts]

@shadowphile Does it still do that if you disconnect the T1 heater? If so, check your wiring for shorts.

Ian

[shadowphile]

@droftarts thanks for the quick reply! Your reply had me scrambling for a while until I realized that T stands for Temperature sensor, not Tool.

[shadowphile]

@droftarts I fixed the channel assignments and disconnected heater 1. System still went into reset and looked like a short because all the PCB LEDs blank out the moment I select either T0 or H1 (GUI links), or send T0 by the console.

However, the heaters are working now and I've tuned them up already.
I tried a few more times with T0 or T1 though and haven't been able to force a reset. It would be great if it stayed this way!

thanks