A
Hi everybody,
I'm a beginner and I'm trying to acquire data from a microcontroller with Modbus serial protocol in order to create an interface with LabVIEW. I'm using a Prolific Technology USB-RS232 converter and Windows 7 as OS.
I can't read data from the micro. I know that read only variables are in registers from 100hex and 1FFhex and read/write variables are from 200hex and 2FFhex.
How does the memory of micro need to be used? How do I define holding registers and input registers?
Thanks in advance for any advice.
Andrea.
I'm a beginner and I'm trying to acquire data from a microcontroller with Modbus serial protocol in order to create an interface with LabVIEW. I'm using a Prolific Technology USB-RS232 converter and Windows 7 as OS.
I can't read data from the micro. I know that read only variables are in registers from 100hex and 1FFhex and read/write variables are from 200hex and 2FFhex.
How does the memory of micro need to be used? How do I define holding registers and input registers?
Thanks in advance for any advice.
Andrea.