gianlucads

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Hi, I check return of function... `// printf("open modbus RTU\n"); ctxRTU = modbus_new_rtu("/dev/ttyS0", 900, 'N', 8, 1); // ctxRTU = modbus_new_rtu("/dev/ttyUSB0", 9600, 'N', 8, 1); //ctxRTU = modbus_new_rtu(mb->PortModBus, mb->baud_rate, 'N',...