RS485 Modbus RTU relay board with PowerShell

2019-03-13T17:06:27+02:00Febbraio 28th, 2019|Programming|

RS485 Modbus RTU relay board with PowerShell Serial comunication with a 4 Channel RS485 Modbus RTU relay board via a universal USB - RS485 dongle using PowerShell. Relevant links: https://unserver.xyz/modbus-guide/ https://www.tanzolab.it/R41A08 https://github.com/Erriez/R421A08-rs485-8ch-relay-board Write-Host "Available ports:" ([System.IO.Ports.SerialPort]::getportnames()); $COM = "COM4"; $SLAVE_ID = 0x03; # Append 2 byte MODBUS-16 CRC [...]