PT1000 on toolboard showing 2000c

PRACTAC

I have a Duet3 6HC and a Toolboard1LC. I am using a PT1000 thermistor in my hotend and its been working great. Recently I got a temp reading that my hotend is at 2000 degrees (meaning no connection) so I ordered another PT1000 and installed it, and got the same reading. I remapped my thermistor from "P"20.temp0" to "P"20.temp1". Same issue. I remapped it and connected it to my 6HC "P"0.temp1" and it works fine and is showing correct temp. Does anyone have a suggestion to what it may be? Any help would be much appreciated.

Currently running

Duet TOOL1LC firmware version 3.3
Duet Web Control 3.3.0

Phaedrux

When and where did you purchase the toolboard?

Can you share your config.g and the results of M98 P"config.g" and M122?

PRACTAC

@phaedrux
Purchase Date of Toolboard1LC = April 28,2021 (filastruder.com)
Keep gettings errors when trying to add config.g and M122

PRACTAC

@practac M122.txt

PRACTAC

@practac config_g.txt

PRACTAC

One other issue that I found after I remapped the PT1000 to the Duet36HC was that the actual heater did not heat. I remapped it to the duet36hc also and its working fine. So looks like it might be a bad toolboard

jay_s_uk

@practac you can't use a thermistor on a different board to the one the heater is on

PRACTAC

@jay_s_uk
okay. I moved the heater to the 6HC so its working.

dhusolo

@jay_s_uk I disagree. I have my hotend heater connected to my Duet 3 and my thermistor connected to my tool board and it works fine.

jay_s_uk

@dhusolo it was a restriction in 3.3.0

deckingman

@jay_s_uk said in PT1000 on toolboard showing 2000c:

@dhusolo it was a restriction in 3.3.0

To expand on that, it is a restriction on all "3"series firmware versions up to and including 3.3.0 and affects all expansion boards, not just tool boards.

dhusolo

I understand that but what I'm saying is that I'm running 3.3.0 and I have my hotend heater on my Duet 3 and the hotend thermistor is on the toolboard.

M308 S0 P"0.temp0" Y"thermistor" A"Bed" T100000 B4725 C0.0000000706             ; configure sensor 0 as thermistor on pin temp0 
M308 S1 P"20.temp0" Y"thermistor" A"Hotend" T100000 B4680 C6.455513e-8   ; configure sensor 1 as thermistor on pin temp1-Matrix
M950 H0 C"0.out1" T0                                 		; create bed heater output on out0 and map it to sensor 0
M950 H1 C"0.out2" T1                                 		; create nozzle heater output on out1 and map it to sensor 1

deckingman

@dhusolo https://duet3d.dozuki.com/Wiki/Duet_3_firmware_configuration_limitations

According to the above, it's a permanent limitation for safety reasons. Maybe the rationale has changed but the documentation hasn't caught up?

droftarts

@deckingman The documentation on the limitation says:

A heater on an expansion or tool board can only be controlled by a temperature sensor on the same expansion board. This is a safety precaution.

@dhusolo said:

I have my hotend heater connected to my Duet 3 and my thermistor connected to my tool board and it works fine.

So it's the other way around from the firmware limitation, and (apparently) works.

Ian

PRACTAC

Soooo.....Should I create another post so we can get back on topic?

I have my heater and my PT1000 currently attached and mapped to my Duet36HC, so they are working, when I have attached to my toolboard1LC:

P1000:
Connected and Mapped to Toolboard1LC Temp0 - Does not work
Connected and Mapped to Toolboard1LC Temp1 - Does not work

Hotend:
Connected and Mapped to Toolboard1LC Out0 - Does not work

Fan 1:
Connected and Mapped to Toolboard1LC Out1 PH4 - Does not work

Fan 2:
Connected and Mapped to Toolboard1LC Out2 PH3 - Does not work

BLTOUCH:
Connected and Mapped to Toolboard1LC IO0 PH4 - Works

Extruder:
Connected and Mapped to Toolboard1LC Driver0 PH4 - Works

X Endstop:
Connected and Mapped to Toolboard1LC IO2 PH3 - Works

jay_s_uk

@practac can you post your current config and an output of M122 B20

PRACTAC

@jay_s_uk that was sent yesterday along with another M122 . Here is the output from the M122 B20

M122 B20
Diagnostics for board 20:
Duet TOOL1LC firmware version 3.3 (2021-06-15 16:12:58)
Bootloader ID: SAMC21 bootloader version 2.3 (2021-01-26b1)
Never used RAM 3660, free system stack 2789 words
Tasks: Move(notifyWait,0.0%,153) HEAT(delaying,0.0%,117) CanAsync(notifyWait,0.0%,65) CanRecv(notifyWait,0.0%,76) CanClock(notifyWait,0.0%,65) TMC(delaying,2.8%,57) MAIN(running,92.2%,424) IDLE(ready,0.0%,27) AIN(delaying,4.9%,142), total 100.0%
Last reset 00:01:01 ago, cause: power up
Last software reset time unknown, reason: AssertionFailed, available RAM 3392, slot 2
Software reset code 0x0120 ICSR 0x00000000 SP 0x2000415c Task Freestk 129 bad marker
Stack: 00000544 00022ffc 00019b65 20003134 00016cff 20003134 000163d1 20000ed0 00000000 00000001 00008275 200071c8 200071c8 200071e0 00000000 20000f50 00011647 000223b8 00022474 00021ac8 00019b05 200071c8 200071c8 20000f50 000083ed 200071d8 000009c7
Driver 0: position 0, 675.3 steps/mm, standstill, SG min/max 0/0, read errors 0, write errors 0, ifcnt 12, reads 30754, writes 12, timeouts 0, DMA errors 0, steps req 0 done 0
Moves scheduled 0, completed 0, in progress 0, hiccups 0, step errors 0, maxPrep 0, maxOverdue 0, maxInc 0, mcErrs 0, gcmErrs 0
Peak sync jitter 0/5, peak Rx sync delay 195, resyncs 0/0, no step interrupt scheduled
VIN: 24.3V
MCU temperature: min 17.5C, current 22.8C, max 22.8C
Ticks since heat task active 64, ADC conversions started 61558, completed 61557, timed out 0, errs 0
Last sensors broadcast 0x00000000 found 0 69 ticks ago, loop time 0
CAN messages queued 182, send timeouts 0, received 470, lost 0, free buffers 37, min 37, error reg 110000
dup 0, oos 0/0/0/0, bm 0, wbm 0, rxMotionDelay 0
Accelerometer detected: no
I2C bus errors 0, naks 3, other errors 0

jay_s_uk

@practac your config yesterday doesn't reference the toolboard for the PT1000. so can you confirm that thats definitely the one you're using?

PRACTAC

@jay_s_uk yes sir it it the same toolboard.

PRACTAC

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