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Puppy error #17516 (XL)

Relevantní pro:
Poslední aktualizace 3 months ago
Tento článek je také dostupný v následujících jazycích: 

What happened?

On the Original Prusa XL, communication with the peripheral boards (e.g. Dwarf board) is achieved using the MODBUS protocol. In MODBUS there are two types of devices, the master and the slave (also known respectively as client and server). On Original Prusa XL firmware, the master is the XLBuddy and each slave is called puppy.

Each puppy is identified by the printer based on its type. If the puppy type is different than expected, the printer will show the message "Unknown puppy type".

Error name: Puppy unknown type

Error code: #17516

How to fix it?

Re-flash firmware

Download the firmware, and transfer it to your USB drive. Make sure to unmount the drive from your operating system before physically removing it.

Insert the USB drive back into the printer and reboot the printer using the reset button directly next to the knob to initiate the flashing procedure. In case the procedure does not start, reboot the printer again by pressing the same reset button, and while the printer is booting up, press once the rotating knob.

A visual inspection

Before accessing any of the electronic boards, ensure that the printer is fully cooled down, switched off, and disconnected from the mains for at least 10 minutes

From the rear of the printer, loosen the indicated four screws. It is not necessary to remove them completely. Then, slide up the electronics cover to remove it. This will expose the XLBuddy board, part of the Sandwich board, and if present, the XL-Splitter. 

The single-head and dual-head versions of the Original Prusa XL are not equipped with the XL-Splitter board. 

Inspect the boards, in particular the XLBuddy. Check for defects or damage on the surface, such as a detached component, or a visibly burnt spot.

If needed, disconnect the antenna cable from the XLBuddy board, and extract the XLBuddy board, using the two lower ejectors. Touch any electronic board only from its edges to avoid damaging its components. 

Sandwich/XL-Spitter - Nextruder cables

Inspect the Nextruder cables and their connectors, both from the electronic board side and from the Dwarf board side on each Nextruder. Check for any incorrect or loose connections or damage on the cables and connectors. 

For Nextruder 1 and 2, the cables are connected to the top center of the Sandwich board. More reference is on the linked guide, for printers with rear antenna, and printers with side antenna

For Nextruder 3, 4, and 5, the cables are connected to the XL-Splitter board. 

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