Modbus - Remote Switch Bricklet

This is the description of the Modbus protocol for the Remote Switch Bricklet. General information and technical specifications for the Remote Switch Bricklet are summarized in its hardware description.

API

A general description of the Modbus protocol structure can be found here.

Basic Functions

BrickletRemoteSwitch.switch_socket
Function ID:
  • 1
Request:
  • house_code – Type: uint8, Range: [0 to 31]
  • receiver_code – Type: uint8, Range: [0 to 31]
  • switch_to – Type: uint8, Range: See meanings
Response:
  • no response

This function is deprecated, use switch_socket_a instead.

The following meanings are defined for the elements of this function:

For switch_to:

  • 0 = Off
  • 1 = On
BrickletRemoteSwitch.get_switching_state
Function ID:
  • 2
Request:
  • empty payload
Response:
  • state – Type: uint8, Range: See meanings

Returns the current switching state. If the current state is busy, the Bricklet is currently sending a code to switch a socket. It will not accept any requests to switch sockets until the state changes to ready.

How long the switching takes is dependent on the number of repeats, see set_repeats.

The following meanings are defined for the elements of this function:

For state:

  • 0 = Ready
  • 1 = Busy
BrickletRemoteSwitch.switch_socket_a
Function ID:
  • 6
Request:
  • house_code – Type: uint8, Range: [0 to 31]
  • receiver_code – Type: uint8, Range: [0 to 31]
  • switch_to – Type: uint8, Range: See meanings
Response:
  • no response

To switch a type A socket you have to give the house code, receiver code and the state (on or off) you want to switch to.

A detailed description on how you can figure out the house and receiver code can be found here.

New in version 2.0.1 (Plugin).

The following meanings are defined for the elements of this function:

For switch_to:

  • 0 = Off
  • 1 = On
BrickletRemoteSwitch.switch_socket_b
Function ID:
  • 7
Request:
  • address – Type: uint32, Range: [0 to 226 - 1]
  • unit – Type: uint8, Range: [0 to 15, 255]
  • switch_to – Type: uint8, Range: See meanings
Response:
  • no response

To switch a type B socket you have to give the address, unit and the state (on or off) you want to switch to.

To switch all devices with the same address use 255 for the unit.

A detailed description on how you can teach a socket the address and unit can be found here.

New in version 2.0.1 (Plugin).

The following meanings are defined for the elements of this function:

For switch_to:

  • 0 = Off
  • 1 = On
BrickletRemoteSwitch.dim_socket_b
Function ID:
  • 8
Request:
  • address – Type: uint32, Range: [0 to 226 - 1]
  • unit – Type: uint8, Range: [0 to 15, 255]
  • dim_value – Type: uint8, Range: [0 to 255]
Response:
  • no response

To control a type B dimmer you have to give the address, unit and the dim value you want to set the dimmer to.

A detailed description on how you can teach a dimmer the address and unit can be found here.

New in version 2.0.1 (Plugin).

BrickletRemoteSwitch.switch_socket_c
Function ID:
  • 9
Request:
  • system_code – Type: char, Range: ['A' to 'P']
  • device_code – Type: uint8, Range: [1 to 16]
  • switch_to – Type: uint8, Range: See meanings
Response:
  • no response

To switch a type C socket you have to give the system code, device code and the state (on or off) you want to switch to.

A detailed description on how you can figure out the system and device code can be found here.

New in version 2.0.1 (Plugin).

The following meanings are defined for the elements of this function:

For switch_to:

  • 0 = Off
  • 1 = On

Advanced Functions

BrickletRemoteSwitch.set_repeats
Function ID:
  • 4
Request:
  • repeats – Type: uint8, Range: [0 to 255], Default: 5
Response:
  • no response

Sets the number of times the code is sent when one of the switch socket functions is called. The repeats basically correspond to the amount of time that a button of the remote is pressed.

Some dimmers are controlled by the length of a button pressed, this can be simulated by increasing the repeats.

BrickletRemoteSwitch.get_repeats
Function ID:
  • 5
Request:
  • empty payload
Response:
  • repeats – Type: uint8, Range: [0 to 255], Default: 5

Returns the number of repeats as set by set_repeats.

BrickletRemoteSwitch.get_identity
Function ID:
  • 255
Request:
  • empty payload
Response:
  • uid – Type: char[8]
  • connected_uid – Type: char[8]
  • position – Type: char, Range: ['a' to 'h', 'z']
  • hardware_version – Type: uint8[3]
    • 0: major – Type: uint8, Range: [0 to 255]
    • 1: minor – Type: uint8, Range: [0 to 255]
    • 2: revision – Type: uint8, Range: [0 to 255]
  • firmware_version – Type: uint8[3]
    • 0: major – Type: uint8, Range: [0 to 255]
    • 1: minor – Type: uint8, Range: [0 to 255]
    • 2: revision – Type: uint8, Range: [0 to 255]
  • device_identifier – Type: uint16, Range: [0 to 216 - 1]

Returns the UID, the UID where the Bricklet is connected to, the position, the hardware and firmware version as well as the device identifier.

The position can be 'a', 'b', 'c', 'd', 'e', 'f', 'g' or 'h' (Bricklet Port). A Bricklet connected to an Isolator Bricklet is always at position 'z'.

The device identifier numbers can be found here

Callbacks

BrickletRemoteSwitch.CALLBACK_SWITCHING_DONE
Function ID:
  • 3
Response:
  • empty payload

This callback is triggered whenever the switching state changes from busy to ready, see get_switching_state.