Bed thermistor setup

Phaedrux

Can you provide the results of sending M122 and M98 P"config.g" please?

Are you using the stock ender 3 thermistor?

Where exactly are you connecting the thermistor?

Try copy and paste this section to replace your heaters section.

; Heaters
M308 S0 P"bedtemp" Y"thermistor" T100000 B4092 ; configure sensor 0 as thermistor on pin bedtemp
M950 H0 C"bedheat" T0                          ; create bed heater output on bedheat and map it to sensor 0
M307 H0 B0 S1.00                               ; disable bang-bang mode for the bed heater and set PWM limit
M140 H0                                        ; map heated bed to heater 0
M143 H0 S150                                   ; set temperature limit for heater 0 to 150C
M308 S1 P"e0temp" Y"thermistor" T100000 B4092  ; configure sensor 1 as thermistor on pin e0temp
M950 H1 C"e0heat" T1                           ; create nozzle heater output on e0heat and map it to sensor 1
M307 H1 B0 S1.00                               ; disable bang-bang mode for heater  and set PWM limit
M143 H1 S275                                   ; set temperature limit for heater 1 to 275C

ross

@phaedrux
5/14/2021, 5:50:39 PM M122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 3.2.2 running on Duet WiFi 1.02 or later
Board ID: 08DGM-917NK-F2MS4-7J1DD-3S86R-1ZT4F
Used output buffers: 3 of 24 (16 max)
=== RTOS ===
Static ram: 23460
Dynamic ram: 73508 of which 24 recycled
Never used RAM 15088, free system stack 191 words
Tasks: NETWORK(ready,237) HEAT(blocked,308) MAIN(running,379) IDLE(ready,20)
Owned mutexes: WiFi(NETWORK)
=== Platform ===
Last reset 00:00:49 ago, cause: software
Last software reset at 2021-05-14 17:49, reason: User, GCodes spinning, available RAM 15088, slot 0
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0041f000 BFAR 0xe000ed38 SP 0x00000000 Task MAIN Freestk 0 n/a
Error status: 0x00
Aux0 errors 0,0,0
MCU temperature: min 27.8, current 28.2, max 28.8
Supply voltage: min 24.0, current 24.1, max 24.2, under voltage events: 0, over voltage events: 0, power good: yes
Driver 0: position 0, standstill, SG min/max not available
Driver 1: position 0, standstill, SG min/max not available
Driver 2: position 0, standstill, SG min/max not available
Driver 3: position 0, standstill, SG min/max not available
Driver 4: position 0, standstill, SG min/max not available
Driver 5: position 0
Driver 6: position 0
Driver 7: position 0
Driver 8: position 0
Driver 9: position 0
Driver 10: position 0
Driver 11: position 0
Date/time: 2021-05-14 17:50:38
Cache data hit count 59241505
Slowest loop: 9.48ms; fastest: 0.21ms
I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
=== Storage ===
Free file entries: 10
SD card 0 detected, interface speed: 20.0MBytes/sec
SD card longest read time 1.2ms, write time 0.0ms, max retries 0
=== Move ===
DMs created 83, maxWait 0ms, bed compensation in use: none, comp offset 0.000
=== MainDDARing ===
Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== AuxDDARing ===
Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== Heat ===
Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1 -1 -1
=== GCodes ===
Segments left: 0
Movement lock held by null
HTTP is idle in state(s) 0
Telnet is idle in state(s) 0
File is idle in state(s) 0
USB is idle in state(s) 0
Aux is idle in state(s) 0
Trigger is idle in state(s) 0
Queue is idle in state(s) 0
LCD is idle in state(s) 0
Daemon is idle in state(s) 0
Autopause is idle in state(s) 0
Code queue is empty.
=== Network ===
Slowest loop: 20.68ms; fastest: 0.00ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions
HTTP sessions: 1 of 8

WiFi -
Network state is active
WiFi module is connected to access point
Failed messages: pending 0, notready 0, noresp 0
WiFi firmware version 1.23
WiFi MAC address 84:f3:eb:83:4a:93
WiFi Vcc 3.36, reset reason Power up
WiFi flash size 4194304, free heap 23704
WiFi IP address 192.168.1.101
WiFi signal strength -62dBm, mode none, reconnections 0, sleep mode modem
Clock register ffffffff
Socket states: 0 0 0 0 0 0 0 0

And

5/14/2021, 5:53:15 PM M98 P"config.g"
HTTP is enabled on port 80
FTP is disabled
TELNET is disabled
Error: Heater 3 not found
Error: Height map file 0:/sys/heightmap.cvs not found

I replaced the heater code with yours and it's the same.
It's plugged into e1temp

ross

Could it be something with my bltouch? I think that's where that heater3 errors is coming from.

Phaedrux

@ross said in Bed thermistor setup:

M307 H3 A-1 C-1 D-1 ; Disable heater on PWM channel for BLTouch

Remove that line. Not needed in RRF3

@ross said in Bed thermistor setup:

G29 s1 P"heightmap.cvs" ; load the mesh

Also remove that. Best not to load the heightmap until after the Z axis has been homed with the probe.

Phaedrux

@ross said in Bed thermistor setup:

WiFi firmware version 1.23

Also looks like the wifi server wasn't updated. I suggest you upload the full zip file again to the system tab in DWC just to make sure everything is up to date. Don't extract it first, just upload the whole file.

https://github.com/Duet3D/RepRapFirmware/releases/download/3.2.2/Duet2and3Firmware-3.2.2.zip

ross

@phaedrux ok I did that but bed thermistor still says -273.1. And thanks for the help.

Phaedrux

If you swap the bed thermistor and the hotend thermistor does the -273 follow the thermistor or stay with the port?

ross

@phaedrux so if I plug either temp probe into e0 they work but either on e1 I get the -273.1

droftarts

@ross e1temp is not defined. e0temp and bedtemp are. bedtemp pins are here:
alt text

Ian

ross

@droftarts well look at that! If you plug it in the correct place it works, who would have thought lol.
Thank you for wasting your time on me.

Phaedrux

@phaedrux said in Bed thermistor setup:

Where exactly are you connecting the thermistor?

LOL glad you figured it out.

droftarts

@phaedrux he did say e1temp in the post after you asked that! Guess we all missed it for a while!

Ian

ross

@droftarts yea I had it in the e1 port not realizing it was for a second extruder. I guess that's why it's labeled "E" for extruder lol. I haven't used the printer for a while and messed up the connection. It's all good now doing an auto tune pid as we speak. Thanks again guys.