2.2 Configuration dialog of the MonarcoDrv driver
The configuration dialog can be activated from RexDraw by pressing the Configure button in the parameters dialog of the IODRV block (see chapter 2.1).
The RS-485 section configures the properties of the RS-485 bus for connecting to external devices.
IMPORTANT: Note that the internal communication between the CPU and the MCU of the Monarco HAT uses UART communication (/dev/ttyAMA0 on the Raspberry Pi) at 115200 baudrate, 8 bits per byte, no parity, 1 stop bit. These are the values you have to use in the Modbus driver configuration if you are willing to use it. For details about the internal structure of the Monarco HAT visit http://www.monarco.io.
The SPI configuration section defines the communication between the CPU and the Monarco HAT MCU (/dev/spidev0.0 on the Raspberry Pi, maximum clock speed is 4 MHz).
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