Conditional Macro : check temp and Pulse an IO

M7460

Hi , I have a Macro I require :

Aim :

Robot sends Trigger to start MACRO (if have this part sorted)

Macro then needs to check Tool 0:1:2 temp is =<193 IF yes then it sends a trigger out (to a Robot ) If not then a warning on a screen and no trigger is sent .

What i have so far....

M42 P8 S0 
{if M105 P0:1:2 S=<193}
M42 P8 S1
G4 P10000
M42 P8 S0

It just starts the trigger when sat at 19c at the moment .

I welcome advice .

o_lampe

@M7460
I haven't done a lot gcode conditionals lately, so I might be wrong:
The if M105.... line looks suspicious to me.
How does the macro know if the temp values of all sensors must be >193 or just one of them?
Try that instead:

if {m105 P0 S <= 193 } && {m105 P1 S <= 193} && {m105 P2 S <= 193}
   M42 P8 S1     ; don't forget to indent the following lines to link them to the if-term

I also think that "=<" is not the right term. "<=" seems more like it, or better use "<193.1"?

M7460

Thanks @o_lampe ,

I get the following error :

	Error: Failed to read code from macro Allow Print to start : Failed to evaluate "{m105 P0 S <= 193 } && {m105 P1 S <= 193} && {m105 P2 S <= 193}": unknown value 'm105'

It looks like the m105 is the wrong command to get a reading ....

jay_s_uk

@M7460 you need to use the object model name e.g. heat.heaters[1].current

M7460

@jay_s_uk could you please explain a little more ?

extract from my config.g

; Heaters
M308 S0 P"spi.cs0" Y"rtd-max31865"   A"Top Heater"    ; configure sensor 0 as PT100 on pin spi.cs0
M950 H0 C"out3" T1                       ; create nozzle heater output on out3 and map it to sensor 0
M143 H0 S400                             ; set temperature limit for heater 0 to 400C
M308 S1 P"spi.cs1" Y"rtd-max31865" A"Nozzle"     ; configure sensor 1 as PT100 on pin spi.cs1
M950 H1 C"out1" T0                     ; create nozzle heater output on out1 and map it to sensor 1
M143 H1 S400                            ; set temperature limit for heater 1 to 400C
M308 S2 P"spi.cs2" Y"rtd-max31865" A"Middle Heater"    ; configure sensor 2 as PT100 on pin spi.cs2
M950 H2 C"out2" T2                      ; create nozzle heater output on out2 and map it to sensor 2
M143 H2 S400                            ; set temperature limit for heater 2 to 400C
M570 H1 S30 T30 
M570 H2 S30 T30 
M570 H0 S30 T30
M307 H0 R0.939 K0.115:0.000 D28.67 E1.35 S1.00 B0
M307 H2 R0.832 K0.138:0.000 D23.81 E1.35 S1.00 B0 
M307 H1 R1.055 K0.105:0.000 D35.82 E1.35 S1.00 B0

jay_s_uk

@M7460 all your printer details get loaded into the object model in the firmware. you can't use commands in the way you have to get information.
There is a plugin for DWC to allow you to browse the object model in real time
There is more information on the object model here https://github.com/Duet3D/RepRapFirmware/wiki/Object-Model-Documentation

M7460

@jay_s_uk awesome ! found my heaters ! So i do not get any error on the console but my IO fires even though I'm not in the correct temp range .

any thoughts?

M42 P8 S0
if {heat.heaters[0].current <193 } && {heat.heaters[1].current <193} && {heat.heaters[2].current <193}
	M42 P8 S1     ; don't forget to indent the following lines to link them to the if-term
	G4 P10000
	M42 P8 S0
`

jay_s_uk

@M7460 what temps are being displayed for all 3 heaters currently?

M7460

@jay_s_uk 17c its cold today !

jay_s_uk

@M7460 thats expected then as you're doing a less than check on all 3

M7460

@jay_s_uk

What an ass haha thanks for all your help ! is there anything i can so to add a warning if it not up to temp then exit and stop the macro ?

jay_s_uk

@M7460 you could add either an elif with the conditions where you want the error or just an else to capture everything that doesn't meet the if.
The something like M118 to post the message.
abort can be used to stop the run on a macro https://docs.duet3d.com/en/User_manual/Reference/Gcode_meta_commands#abort-command