@chrishamm
I understand it. Thank you very much!

@chrishamm said in What is 'buff'?:

The remaining space

Sorry to ask such a basic question.
What is the remaining space?

Sorry for the rudimentary post.
When I send a request such as rr_gcode?gcode=M115,
it returns 'buff' with status code 200.

What is the meaning of this 'buff'?

I would especially like to know the error response when the status code is 500.

Please tell me about the error list.

I could not figure out from this page (https://duet3d.dozuki.com/Wiki) under what circumstances I could get any errors.
If there is an error list, please let me know.
In particular, I would like to know the following pattern errors.

• /rr_upload
• /rr_status
• /rr_gcode?gcode=M0
• /rr_gcode?gcode=M23
• /rr_gcode?gcode=M24
• /rr_gcode?gcode=M25
• /rr_gcode?gcode=M120
• /rr_gcode?gcode=M121
• /rrgcode=M999
• /rr_gcode?gcode=G0
• /rr_gcode?gcode=G28
• /rr_gcode?gcode=G90
• /rr_gcode?gcode=G91