Receiving data via modbus tcp #102
Description
I have a PLC that broadcasts data. I tried to get this data using "easy modbus tcp", but I get ex "Starting address invalid or starting address + quantity invalid"
static void Modsim()
{
ModbusClient modbusClient = new ModbusClient("10.7.0.2", 502);
modbusClient.Connect();
modbusClient.ReceiveDataChanged += ModbusClient_ReceiveDataChanged;
Console.WriteLine("Receiving data:");
int startingAddress = 49000;
int quantity = 9;
while (isChatRunning)
{
try
{
for (int i = startingAddress; i < startingAddress + quantity; i++)
{
modbusClient.ReadHoldingRegisters(startingAddress, quantity);
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
}
static void ModbusClient_ReceiveDataChanged(object sender)
{
ModbusClient modbusClient = (ModbusClient)sender;
string receivedData = BitConverter.ToString(modbusClient.receiveData.ToArray());
if (receivedData.Length > 0)
{
Console.WriteLine(receivedData);
}
Thread.Sleep(1000);
}So far I'm training on modsim32. These are the values I have set:
Address: 9000
Length: 10
Device id: 1
Modbus Point Type: 03: Holding Register
IP: 127.0.0.1, Port: 502
Please tell me what I did wrong. Or what I didn't. I would be glad for any information)