Hi all. Just a quick one, I have an MPPT Solar charger and a OB115-Mod meter. Both are set to ID1, so while I am waiting for a lead so I can change the address of the MPPT controller to ID2, I have put in a second USB-RS485 on my PI.
I can see them plugged in but I cant get values from the Electric Meter.
So basically I would have thought even if both devices have a Modbus ID of 1, but using separate USB adapters it would not clash. It may just be the power supply is not enough to run both adapters at the same time, But, should I be able to read multiple Modbus devices in the same Node Red project or is there something I need to add?
pi@modbus:~ $ lsusb
Bus 001 Device 006: ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adapter (MPPT Controller)
Bus 001 Device 007: ID 10c4:ea60 Cygnal Integrated Products, Inc. CP2102/CP2109 UART Bridge Controller [CP210x family] (Elec Meter)
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp. SMC9514 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub