It could be a bit difficult. To be honest, I've never really thought about how to integrate a VFD using normal Modbus commands.
The main problem is that Rio sends the values in a loop, and individual commands cannot be triggered by a button, for example (to start/stop).
I think I'll have to expand it a bit for that,
but you can try reading out a few values to test the communication.
in json it looks like that to read BusVoltage and RunningFrequency:
Code:
{
"type": "modbus",
"pins": {
...
},
"config": {
"BusVoltage": {
"address": 1,
"type": 3,
"register": 4098,
"values": 1,
"datatype": "int",
"scale": 1.0,
"unit": "",
"error_values": "",
"format": "d",
"timeout": 100,
"delay": 60,
"priority": 0,
"direction": "input"
},
"RunningFrequency": {
"address": 1,
"type": 3,
"register": 4097,
"values": 1,
"datatype": "int",
"scale": 1.0,
"unit": "",
"error_values": "",
"format": "d",
"timeout": 100,
"delay": 60,
"priority": 0,
"direction": "input"
}
}
},
