modbus_write_register - Man Page

int modbus_write_register(modbus_t *ctx, int addr, const uint16_t value);

The modbus_write_register() function shall write the value of value holding registers at the address addr of the remote device.

The function uses the Modbus function code 0x06 (preset single register).

The function shall return 1 if successful. Otherwise it shall return -1 and set errno.

modbus_read_registers(3) modbus_write_registers(3)

The libmodbus documentation was written by Stéphane Raimbault <stephane.raimbault@gmail.com>

libmodbus(7), modbus_read_input_registers(3), modbus_read_registers(3), modbus_write_and_read_registers(3), modbus_write_registers(3).