JGrossholtz
/ modbus_rs232_master_client.c
Last active
February 4, 2026 21:07
A sample libmodbus client / server (master/slave) using RS232 to request data from a modbus client (tested with libmodbus3.0.6)
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| #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 |