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I'm trying to develop a simple program using delphi to send receive data between PC and a device which is using modbus RTU protocol.
The device is connected to my COM1 port. What should i send to device to read registers? Is there anyone who skilled about MODBUS RTU and delphi? Any comment will be helpful. thanks in advance.
The device is connected to my COM1 port. What should i send to device to read registers? Is there anyone who skilled about MODBUS RTU and delphi? Any comment will be helpful. thanks in advance.