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How Do I Enable the M140 Heating Bed Option?

Posted by chiques

chiques

How Do I Enable the M140 Heating Bed Option?
December 22, 2018 11:41PM

Registered: 6 years ago
Posts: 18

I am using Marlin 1.1.9. I am trying to heat my bad using the 'M140 S60' command but it's not working. When I enter this in Pronterface I get:

Setting bed temperature to 60.000000 degrees Celsius.
echo:Unknown command: "M140 S60.0"

Does anyone know how to enable this in the firmware?

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Dust

Re: How Do I Enable the M140 Heating Bed Option?
December 23, 2018 01:41AM

Admin
Registered: 14 years ago
Posts: 7,207

HAS_HEATED_BED has to be defined

this is true when HAS_TEMP_BED && HAS_HEATER_BED is defined

HAS_TEMP_BED is true when HAS_TEMP_ADC_BED
HAS_HEATER_BED is true is PIN_EXISTS(HEATER_BED)

So

Either you have not defined a pin for your heated bed, or you have not defined a pin for your bed thermistor

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chiques

Re: How Do I Enable the M140 Heating Bed Option?
December 23, 2018 01:08PM

Registered: 6 years ago
Posts: 18

Quote
Dust
HAS_HEATED_BED has to be defined

this is true when HAS_TEMP_BED && HAS_HEATER_BED is defined

HAS_TEMP_BED is true when HAS_TEMP_ADC_BED
HAS_HEATER_BED is true is PIN_EXISTS(HEATER_BED)

So

Either you have not defined a pin for your heated bed, or you have not defined a pin for your bed thermistor

Hello Dust,
None of these variables are in my current Configuration.h or Configuration_adv.h files. Do I just add them?

Reply Quote

chiques

Re: How Do I Enable the M140 Heating Bed Option?
December 23, 2018 01:15PM

Registered: 6 years ago
Posts: 18

Quote
chiques

Quote
Dust
HAS_HEATED_BED has to be defined

this is true when HAS_TEMP_BED && HAS_HEATER_BED is defined

HAS_TEMP_BED is true when HAS_TEMP_ADC_BED
HAS_HEATER_BED is true is PIN_EXISTS(HEATER_BED)

So

Either you have not defined a pin for your heated bed, or you have not defined a pin for your bed thermistor

Hello Dust,
None of these variables are in my current Configuration.h or Configuration_adv.h files. Do I just add them?

Disregard my question. I found the problem.

#define TEMP_SENSOR_BED 0

is set to '0'

Once I set it to '1' it enabled the LCD icon and the error no longer exists.

Thanks for the hint!