modbus_write_bit(3)

modbus_write_bit3

Write a single bit

Usage

int modbus_write_bit(modbus_t *ctx, int addr, int status);

Overview

The modbus_write_bit() function shall write the status of status at the address addr of the remote device. The value must be set to TRUE or FALSE.

The function uses the Modbus function code 0x05 (force single coil).

Return value

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

Releases

6 releases since Debian 7 (Wheezy); the text changed 5 times.

  1. 7
  2. 8
  3. 9
  4. 10
  5. 11
  6. 12

Authors

The libmodbus documentation was written by Stéphane Raimbault <[email protected]>

From libmodbus-dev 3.1.6-2.1 in Debian 12 (Bookworm). Parsed by carta from the page's man source.