question about modbus slave IDs

[crackinx]

if I use modbus to control my vfd I know that is set to ID 1, if I also enable the grblpanel plugin what ID is it set to? I assume 2, or would that be something I can configure in setting after it is flashed?

[dresco]

Hi, the grblpanel plugin does provide a setting ($541) to change the Modbus address.
Default value is 10 (0x0A) to match the current Zephyr backend implementation.

[crackinx]

ok, cool. So it comes already preset to not interfere with vfd communication. perfect, thank you!

[dresco]

Yep, my original setup had both grblPANEL and VFD communication over Modbus.
(Have more recently switched to CAN bus, but my original controller board didn't have that option).