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JGrossholtz / modbus_rs232_master_client.c
Last active November 15, 2024 11:10
A sample libmodbus client / server (master/slave) using RS232 to request data from a modbus client (tested with libmodbus3.0.6)
#include <stdio.h>
#include <unistd.h>
#include <modbus.h>
#include <string.h>
#include <errno.h>
#include <sys/ioctl.h>
#include <linux/serial.h>
#include <asm/ioctls.h>
#define NB_REGS 2