Feature: MODBUS RTU support

Duet3D / RepRapFirmware

OO C++ RepRap Firmware

GNU General Public License v3.0

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Feature: MODBUS RTU support #981

Open dc42 opened 2 months ago

dc42 commented 2 months ago

Add support for MODBUS RTU using any free Aux port in conjunction with a UART to RS485 converter and an IO_OUT pin to control the transmitter.

dc42 commented 2 months ago

I have already reserved additional parameters to allow Mm260 and M261 to be used for thus, see https://reprap.org/wiki/G-code#M260:_i2c_or_Modbus_Send_Data.

developeralgo8888 commented 1 week ago

Why can't the dev team add RS485 support? Its critical in high speed automation to any third party devices and reliable. I was really surprised it was requested for RRF 3.6.0 and now it has been shifted to "After 3.6.0". Its disappointing.