Yep, problem solved. Thank you for quick response!

Hello,
My custom trigger button doesn't work. Could someone help me?

Board: Duet 3 MB6HC (MB6HC)
DSF Version: 1.1.0.5
Firmware: RepRapFirmware for Duet 3 MB6HC v0.6 or 1.0 3.0beta12 (2019-11-02b1)
config.g:
M581 P"io2.in" T4 C0;
trigger4.g:
M118 S"Hello Duet";
Wiring:

Thanks for help

I'm not sure in the documentation. What pins are the corrent pairs of coils for stepper motor?

A2+A1 (one coil) and B2+B1 (second coil)

or

A1+B1 and A2+B2?

Do I have my image drawn correctly?

Thanks for answer.