ljean
help modbus tcp server
hey guys i want to create a server modbus tcp that can send messages (example "hello") my project is to send messages to my plc through modbus tcp can anyone help me out
Hello,
If you want to send data to a PLC, I guess that your program must be a modbus master. There is an example in modbus_tk source code.
I hope it helps Best luc
Le 2 mai 2019 à 01:41, othmakuf [email protected] a écrit :
hey guys i want to create a server modbus tcp that can send messages (example "hello") my project is to send messages to my plc through modbus tcp can anyone help me out
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that really helps i execute the scripts i get this error about the writing
Traceback (most recent call last):
File "C:/Users/othmane 2/Desktop/modbus master.py", line 59, in
Your PLC didn’t answer. I recommend to check the communication settings and make sure that the PLC receives and handle your queries
Le 2 mai 2019 à 14:00, othmakuf [email protected] a écrit :
that really helps i execute the scripts i get this error about the writing Traceback (most recent call last): File "C:/Users/othmane 2/Desktop/modbus master.py", line 59, in main() File "C:/Users/othmane 2/Desktop/modbus master.py", line 52, in main logger.info(master.execute(1, cst.WRITE_MULTIPLE_COILS, 0, output_value=[1, 1, 0, 1, 1, 0, 1, 1])) File "C:\ProgramData\Anaconda3\lib\site-packages\modbus_tk\utils.py", line 39, in new raise excpt File "C:\ProgramData\Anaconda3\lib\site-packages\modbus_tk\utils.py", line 37, in new ret = fcn(*args, **kwargs) File "C:\ProgramData\Anaconda3\lib\site-packages\modbus_tk\modbus.py", line 298, in execute response = self._recv(expected_length) File "C:\ProgramData\Anaconda3\lib\site-packages\modbus_tk\modbus_tcp.py", line 216, in _recv rcv_byte = self._sock.recv(1) socket.timeout: timed out
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