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No i have 16 I/O as seen in mb2hal config
but in c code have 7 just for test only
Correct is 16 but i dont know if must write it in hex or dec base..
What is correct 0x0f or 16?

From these 2 modules which will work?
grobotronics.com/ttl-to-rs485-module.html?sl=en
or this
www.devobox.com/en/usb-to-serial/1264-ma...o-rs-485-module.html
How to wire pins with 7i80hd?