openHAB - RS485 Bricklet¶

Modbus Master¶

Download (ExampleModbusMaster.rules)

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// For this example configure your RS485 Bricklet to Modbus Master Mode in Paper UI.

rule "Read Modbus Registers"
when
    System started // Replace with trigger of your choice
then
    // Change XYZ to the UID of your NFC RFID Bricklet
    val rs = getActions("tinkerforge", "tinkerforge:brickletrs485:XYZ")
    
    // Read register 1281 and 1282 from slave 1.
    val result = rs.brickletRS485ModbusMasterReadInputRegisters(1, 1281, 2)
    
    if (!result.containsKey("exceptionCode")) {
        logInfo("Example", "Failed sending modbus request.")
        return
    }
    
    val exceptionCode = result.get("exceptionCode") as int
    if (exceptionCode != 0) {
        logInfo("Example", "Modbus device returned exception code " + exceptionCode)
        return
    }
    
    val inputRegisters = result.get("inputRegisters") as int[]
    
    logInfo("Example", "Register 1281: " + inputRegisters.get(0))
    logInfo("Example", "Register 1282: " + inputRegisters.get(1))
end

Basic Actions¶

brickletRS485Write(char[] message)¶

Parameters:	message – Type: char[], Length: variable
Return Map:	messageWritten – Type: int, Range: [0 to 216 - 1]

Writes characters to the RS485 interface. The characters can be binary data, ASCII or similar is not necessary.

The return value is the number of characters that were written.

See the thing configuration for configuration possibilities regarding baudrate, parity and so on.

brickletRS485Read(int length)¶

Parameters:	length – Type: int, Range: [0 to 216 - 1]
Return Map:	message – Type: char[], Length: variable

Returns up to length characters from receive buffer.

brickletRS485GetRS485Configuration()¶

Return Map:	baudrate – Type: long, Unit: 1 Bd, Range: [100 to 2000000], Default: 115200 parity – Type: int, Range: See constants, Default: 0 stopbits – Type: int, Range: See constants, Default: 1 wordlength – Type: int, Range: See constants, Default: 8 duplex – Type: int, Range: See constants, Default: 0

Returns the configuration as set by the thing configuration.

The following constants are available for this function:

For parity:

• val PARITY_NONE = 0
• val PARITY_ODD = 1
• val PARITY_EVEN = 2

For stopbits:

• val STOPBITS_1 = 1
• val STOPBITS_2 = 2

For wordlength:

• val WORDLENGTH_5 = 5
• val WORDLENGTH_6 = 6
• val WORDLENGTH_7 = 7
• val WORDLENGTH_8 = 8

For duplex:

• val DUPLEX_HALF = 0
• val DUPLEX_FULL = 1

brickletRS485GetMode()¶

Return Map:	mode – Type: int, Range: See constants, Default: 0

Returns the configuration as set by the thing configuration.

The following constants are available for this function:

For mode:

• val MODE_RS485 = 0
• val MODE_MODBUS_MASTER_RTU = 1
• val MODE_MODBUS_SLAVE_RTU = 2

brickletRS485GetModbusConfiguration()¶

Return Map:	slaveAddress – Type: int, Range: [1 to 247], Default: 1 masterRequestTimeout – Type: long, Unit: 1 ms, Range: [0 to 232 - 1], Default: 1000

Returns the configuration as set by the thing configuration.

Advanced Actions¶

brickletRS485GetCommunicationLEDConfig()¶

Return Map:	config – Type: int, Range: See constants, Default: 3

Returns the configuration as set by the thing configuration

The following constants are available for this function:

For config:

• val COMMUNICATION_LED_CONFIG_OFF = 0
• val COMMUNICATION_LED_CONFIG_ON = 1
• val COMMUNICATION_LED_CONFIG_SHOW_HEARTBEAT = 2
• val COMMUNICATION_LED_CONFIG_SHOW_COMMUNICATION = 3

brickletRS485GetErrorLEDConfig()¶

Return Map:	config – Type: int, Range: See constants, Default: 3

Returns the configuration as set by Clear Error LED.

The following constants are available for this function:

For config:

• val ERROR_LED_CONFIG_OFF = 0
• val ERROR_LED_CONFIG_ON = 1
• val ERROR_LED_CONFIG_SHOW_HEARTBEAT = 2
• val ERROR_LED_CONFIG_SHOW_ERROR = 3

brickletRS485GetBufferConfig()¶

Return Map:	sendBufferSize – Type: int, Unit: 1 B, Range: [210 to 9216], Default: 5120 receiveBufferSize – Type: int, Unit: 1 B, Range: [210 to 9216], Default: 5120

Returns the buffer configuration as set by the thing configuration.

brickletRS485GetBufferStatus()¶

Return Map:	sendBufferUsed – Type: int, Unit: 1 B, Range: [0 to 9216] receiveBufferUsed – Type: int, Unit: 1 B, Range: [0 to 9216]

Returns the currently used bytes for the send and received buffer.

See the thing configuration for buffer size configuration.

brickletRS485GetErrorCount()¶

Return Map:	overrunErrorCount – Type: long, Range: [0 to 232 - 1] parityErrorCount – Type: long, Range: [0 to 232 - 1]

Returns the current number of overrun and parity errors.

brickletRS485GetModbusCommonErrorCount()¶

Return Map:

timeoutErrorCount – Type: long, Range: [0 to 232 - 1] checksumErrorCount – Type: long, Range: [0 to 232 - 1] frameTooBigErrorCount – Type: long, Range: [0 to 232 - 1] illegalFunctionErrorCount – Type: long, Range: [0 to 232 - 1] illegalDataAddressErrorCount – Type: long, Range: [0 to 232 - 1] illegalDataValueErrorCount – Type: long, Range: [0 to 232 - 1] slaveDeviceFailureErrorCount – Type: long, Range: [0 to 232 - 1]

Returns the current number of errors occurred in Modbus mode.

• Timeout Error Count: Number of timeouts occurred.
• Checksum Error Count: Number of failures due to Modbus frame CRC16 checksum mismatch.
• Frame Too Big Error Count: Number of times frames were rejected because they exceeded maximum Modbus frame size which is 256 bytes.
• Illegal Function Error Count: Number of errors when an unimplemented or illegal function is requested. This corresponds to Modbus exception code 1.
• Illegal Data Address Error Count: Number of errors due to invalid data address. This corresponds to Modbus exception code 2.
• Illegal Data Value Error Count: Number of errors due to invalid data value. This corresponds to Modbus exception code 3.
• Slave Device Failure Error Count: Number of errors occurred on the slave device which were unrecoverable. This corresponds to Modbus exception code 4.

brickletRS485ModbusMasterReadCoils(int slaveAddress, long startingAddress, int count)¶

Parameters:	slaveAddress – Type: int, Range: [0 to 247] startingAddress – Type: long, Range: [1 to 216] count – Type: int, Range: [1 to 2000]
Return Map:	exceptionCode – Type: int, Range: See constants coils – Type: boolean[], Length: variable

In Modbus master mode this function can be used to read coils from a slave. This function creates a Modbus function code 1 request.

• Slave Address: Address of the target Modbus slave.
• Starting Address: Number of the first coil to read. For backwards compatibility reasons this parameter is called Starting Address. It is not an address, but instead a coil number in the range of 1 to 65536.
• Count: Number of coils to read.

If sending the request fails, the function will return an empty map.

Upon success the function will return the exception code of the response and the data as received by the response.

Any non-zero exception code indicates a problem. If the exception code is greater than 0 then the number represents a Modbus exception code. If it is less than 0 then it represents other errors. For example, -1 indicates that the request timed out or that the master did not receive any valid response of the request within the master request timeout period as set by the thing configuration.

The following constants are available for this function:

For exceptionCode:

• val EXCEPTION_CODE_TIMEOUT = -1
• val EXCEPTION_CODE_SUCCESS = 0
• val EXCEPTION_CODE_ILLEGAL_FUNCTION = 1
• val EXCEPTION_CODE_ILLEGAL_DATA_ADDRESS = 2
• val EXCEPTION_CODE_ILLEGAL_DATA_VALUE = 3
• val EXCEPTION_CODE_SLAVE_DEVICE_FAILURE = 4
• val EXCEPTION_CODE_ACKNOWLEDGE = 5
• val EXCEPTION_CODE_SLAVE_DEVICE_BUSY = 6
• val EXCEPTION_CODE_MEMORY_PARITY_ERROR = 8
• val EXCEPTION_CODE_GATEWAY_PATH_UNAVAILABLE = 10
• val EXCEPTION_CODE_GATEWAY_TARGET_DEVICE_FAILED_TO_RESPOND = 11

brickletRS485ModbusMasterReadHoldingRegisters(int slaveAddress, long startingAddress, int count)¶

Parameters:	slaveAddress – Type: int, Range: [0 to 247] startingAddress – Type: long, Range: [1 to 216] count – Type: int, Range: [1 to 125]
Return Map:	exceptionCode – Type: int, Range: See constants holdingRegisters – Type: int[], Length: variable, Range: [0 to 216 - 1]

In Modbus master mode this function can be used to read holding registers from a slave. This function creates a Modbus function code 3 request.

• Slave Address: Address of the target Modbus slave.
• Starting Address: Number of the first holding register to read. For backwards compatibility reasons this parameter is called Starting Address. It is not an address, but instead a holding register number in the range of 1 to 65536. The prefix digit 4 (for holding register) is implicit and must be omitted.
• Count: Number of holding registers to read.

If sending the request fails, the function will return an empty map.

Upon success the function will return the exception code of the response and the data as received by the response.

Any non-zero exception code indicates a problem. If the exception code is greater than 0 then the number represents a Modbus exception code. If it is less than 0 then it represents other errors. For example, -1 indicates that the request timed out or that the master did not receive any valid response of the request within the master request timeout period as set by the thing configuration.

The following constants are available for this function:

For exceptionCode:

• val EXCEPTION_CODE_TIMEOUT = -1
• val EXCEPTION_CODE_SUCCESS = 0
• val EXCEPTION_CODE_ILLEGAL_FUNCTION = 1
• val EXCEPTION_CODE_ILLEGAL_DATA_ADDRESS = 2
• val EXCEPTION_CODE_ILLEGAL_DATA_VALUE = 3
• val EXCEPTION_CODE_SLAVE_DEVICE_FAILURE = 4
• val EXCEPTION_CODE_ACKNOWLEDGE = 5
• val EXCEPTION_CODE_SLAVE_DEVICE_BUSY = 6
• val EXCEPTION_CODE_MEMORY_PARITY_ERROR = 8
• val EXCEPTION_CODE_GATEWAY_PATH_UNAVAILABLE = 10
• val EXCEPTION_CODE_GATEWAY_TARGET_DEVICE_FAILED_TO_RESPOND = 11

brickletRS485ModbusMasterWriteSingleCoil(int slaveAddress, long coilAddress, boolean coilValue)¶

Parameters:	slaveAddress – Type: int, Range: [0 to 247] coilAddress – Type: long, Range: [1 to 216] coilValue – Type: boolean
Return Map:	exceptionCode – Type: int, Range: See constants

In Modbus master mode this function can be used to write a single coil of a slave. This function creates a Modbus function code 5 request.

• Slave Address: Address of the target Modbus slave.
• Coil Address: Number of the coil to be written. For backwards compatibility reasons, this parameter is called Starting Address. It is not an address, but instead a coil number in the range of 1 to 65536.
• Coil Value: Value to be written.

If sending the request fails, the function will return an empty map.

Upon success the function will return the exception code of the response.

Any non-zero exception code indicates a problem. If the exception code is greater than 0 then the number represents a Modbus exception code. If it is less than 0 then it represents other errors. For example, -1 indicates that the request timed out or that the master did not receive any valid response of the request within the master request timeout period as set by the thing configuration.

The following constants are available for this function:

For exceptionCode:

• val EXCEPTION_CODE_TIMEOUT = -1
• val EXCEPTION_CODE_SUCCESS = 0
• val EXCEPTION_CODE_ILLEGAL_FUNCTION = 1
• val EXCEPTION_CODE_ILLEGAL_DATA_ADDRESS = 2
• val EXCEPTION_CODE_ILLEGAL_DATA_VALUE = 3
• val EXCEPTION_CODE_SLAVE_DEVICE_FAILURE = 4
• val EXCEPTION_CODE_ACKNOWLEDGE = 5
• val EXCEPTION_CODE_SLAVE_DEVICE_BUSY = 6
• val EXCEPTION_CODE_MEMORY_PARITY_ERROR = 8
• val EXCEPTION_CODE_GATEWAY_PATH_UNAVAILABLE = 10
• val EXCEPTION_CODE_GATEWAY_TARGET_DEVICE_FAILED_TO_RESPOND = 11

brickletRS485ModbusMasterWriteSingleRegister(int slaveAddress, long registerAddress, int registerValue)¶

Parameters:	slaveAddress – Type: int, Range: [0 to 247] registerAddress – Type: long, Range: [1 to 216] registerValue – Type: int, Range: [0 to 216 - 1]
Return Map:	exceptionCode – Type: int, Range: See constants

In Modbus master mode this function can be used to write a single holding register of a slave. This function creates a Modbus function code 6 request.

• Slave Address: Address of the target Modbus slave.
• Register Address: Number of the holding register to be written. For backwards compatibility reasons, this parameter is called Starting Address. It is not an address, but instead a holding register number in the range of 1 to 65536. The prefix digit 4 (for holding register) is implicit and must be omitted.
• Register Value: Value to be written.

If sending the request fails, the function will return an empty map.

Upon success the function will return the exception code of the response.

Any non-zero exception code indicates a problem. If the exception code is greater than 0 then the number represents a Modbus exception code. If it is less than 0 then it represents other errors. For example, -1 indicates that the request timed out or that the master did not receive any valid response of the request within the master request timeout period as set by the thing configuration.

The following constants are available for this function:

For exceptionCode:

• val EXCEPTION_CODE_TIMEOUT = -1
• val EXCEPTION_CODE_SUCCESS = 0
• val EXCEPTION_CODE_ILLEGAL_FUNCTION = 1
• val EXCEPTION_CODE_ILLEGAL_DATA_ADDRESS = 2
• val EXCEPTION_CODE_ILLEGAL_DATA_VALUE = 3
• val EXCEPTION_CODE_SLAVE_DEVICE_FAILURE = 4
• val EXCEPTION_CODE_ACKNOWLEDGE = 5
• val EXCEPTION_CODE_SLAVE_DEVICE_BUSY = 6
• val EXCEPTION_CODE_MEMORY_PARITY_ERROR = 8
• val EXCEPTION_CODE_GATEWAY_PATH_UNAVAILABLE = 10
• val EXCEPTION_CODE_GATEWAY_TARGET_DEVICE_FAILED_TO_RESPOND = 11

brickletRS485ModbusMasterWriteMultipleCoils(int slaveAddress, long startingAddress, boolean[] coils)¶

Parameters:	slaveAddress – Type: int, Range: [0 to 247] startingAddress – Type: long, Range: [1 to 216] coils – Type: boolean[], Length: variable
Return Map:	exceptionCode – Type: int, Range: See constants

In Modbus master mode this function can be used to write multiple coils of a slave. This function creates a Modbus function code 15 request.

• Slave Address: Address of the target Modbus slave.
• Starting Address: Number of the first coil to write. For backwards compatibility reasons, this parameter is called Starting Address.It is not an address, but instead a coil number in the range of 1 to 65536.

If sending the request fails, the function will return an empty map.

Upon success the function will return the exception code of the response.

Any non-zero exception code indicates a problem. If the exception code is greater than 0 then the number represents a Modbus exception code. If it is less than 0 then it represents other errors. For example, -1 indicates that the request timedout or that the master did not receive any valid response of the request within the master request timeout period as set by the thing configuration.

The following constants are available for this function:

For exceptionCode:

• val EXCEPTION_CODE_TIMEOUT = -1
• val EXCEPTION_CODE_SUCCESS = 0
• val EXCEPTION_CODE_ILLEGAL_FUNCTION = 1
• val EXCEPTION_CODE_ILLEGAL_DATA_ADDRESS = 2
• val EXCEPTION_CODE_ILLEGAL_DATA_VALUE = 3
• val EXCEPTION_CODE_SLAVE_DEVICE_FAILURE = 4
• val EXCEPTION_CODE_ACKNOWLEDGE = 5
• val EXCEPTION_CODE_SLAVE_DEVICE_BUSY = 6
• val EXCEPTION_CODE_MEMORY_PARITY_ERROR = 8
• val EXCEPTION_CODE_GATEWAY_PATH_UNAVAILABLE = 10
• val EXCEPTION_CODE_GATEWAY_TARGET_DEVICE_FAILED_TO_RESPOND = 11

brickletRS485ModbusMasterWriteMultipleRegisters(int slaveAddress, long startingAddress, int[] registers)¶

Parameters:	slaveAddress – Type: int, Range: [0 to 247] startingAddress – Type: long, Range: [1 to 216] registers – Type: int[], Length: variable, Range: [0 to 216 - 1]
Return Map:	exceptionCode – Type: int, Range: See constants

In Modbus master mode this function can be used to write multiple registers of a slave. This function creates a Modbus function code 16 request.

• Slave Address: Address of the target Modbus slave.
• Starting Address: Number of the first holding register to write. For backwards compatibility reasons, this parameter is called Starting Address. It is not an address, but instead a holding register number in the range of 1 to 65536. The prefix digit 4 (for holding register) is implicit and must be omitted.

If sending the request fails, the function will return an empty map.

Upon success the function will return the exception code of the response.

Any non-zero exception code indicates a problem. If the exception code is greater than 0 then the number represents a Modbus exception code. If it is less than 0 then it represents other errors. For example, -1 indicates that the request timedout or that the master did not receive any valid response of the request within the master request timeout period as set by the thing configuration.

The following constants are available for this function:

For exceptionCode:

• val EXCEPTION_CODE_TIMEOUT = -1
• val EXCEPTION_CODE_SUCCESS = 0
• val EXCEPTION_CODE_ILLEGAL_FUNCTION = 1
• val EXCEPTION_CODE_ILLEGAL_DATA_ADDRESS = 2
• val EXCEPTION_CODE_ILLEGAL_DATA_VALUE = 3
• val EXCEPTION_CODE_SLAVE_DEVICE_FAILURE = 4
• val EXCEPTION_CODE_ACKNOWLEDGE = 5
• val EXCEPTION_CODE_SLAVE_DEVICE_BUSY = 6
• val EXCEPTION_CODE_MEMORY_PARITY_ERROR = 8
• val EXCEPTION_CODE_GATEWAY_PATH_UNAVAILABLE = 10
• val EXCEPTION_CODE_GATEWAY_TARGET_DEVICE_FAILED_TO_RESPOND = 11

brickletRS485ModbusMasterReadDiscreteInputs(int slaveAddress, long startingAddress, int count)¶

Parameters:	slaveAddress – Type: int, Range: [0 to 247] startingAddress – Type: long, Range: [1 to 216] count – Type: int, Range: [1 to 2000]
Return Map:	exceptionCode – Type: int, Range: See constants discreteInputs – Type: boolean[], Length: variable

In Modbus master mode this function can be used to read discrete inputs from a slave. This function creates a Modbus function code 2 request.

• Slave Address: Address of the target Modbus slave.
• Starting Address: Number of the first discrete input to read. For backwards compatibility reasons, this parameter is called Starting Address. It is not an address, but instead a discrete input number in the range of 1 to 65536. The prefix digit 1 (for discrete input) is implicit and must be omitted.
• Count: Number of discrete inputs to read.

If sending the request fails, the function will return an empty map.

Upon success the function will return the exception code of the response and the data as received by the response.

Any non-zero exception code indicates a problem. If the exception code is greater than 0 then the number represents a Modbus exception code. If it is less than 0 then it represents other errors. For example, -1 indicates that the request timedout or that the master did not receive any valid response of the request within the master request timeout period as set by the thing configuration.

The following constants are available for this function:

For exceptionCode:

• val EXCEPTION_CODE_TIMEOUT = -1
• val EXCEPTION_CODE_SUCCESS = 0
• val EXCEPTION_CODE_ILLEGAL_FUNCTION = 1
• val EXCEPTION_CODE_ILLEGAL_DATA_ADDRESS = 2
• val EXCEPTION_CODE_ILLEGAL_DATA_VALUE = 3
• val EXCEPTION_CODE_SLAVE_DEVICE_FAILURE = 4
• val EXCEPTION_CODE_ACKNOWLEDGE = 5
• val EXCEPTION_CODE_SLAVE_DEVICE_BUSY = 6
• val EXCEPTION_CODE_MEMORY_PARITY_ERROR = 8
• val EXCEPTION_CODE_GATEWAY_PATH_UNAVAILABLE = 10
• val EXCEPTION_CODE_GATEWAY_TARGET_DEVICE_FAILED_TO_RESPOND = 11

brickletRS485ModbusMasterReadInputRegisters(int slaveAddress, long startingAddress, int count)¶

Parameters:	slaveAddress – Type: int, Range: [0 to 247] startingAddress – Type: long, Range: [1 to 216] count – Type: int, Range: [1 to 125]
Return Map:	exceptionCode – Type: int, Range: See constants inputRegisters – Type: int[], Length: variable, Range: [0 to 216 - 1]

In Modbus master mode this function can be used to read input registers from a slave. This function creates a Modbus function code 4 request.

• Slave Address: Address of the target Modbus slave.
• Starting Address: Number of the first input register to read. For backwards compatibility reasons, this parameter is called Starting Address. It is not an address, but instead an input register number in the range of 1 to 65536. The prefix digit 3 (for input register) is implicit and must be omitted.
• Count: Number of input registers to read.

If sending the request fails, the function will return an empty map.

Upon success the function will return the exception code of the response and the data as received by the response.

Any non-zero exception code indicates a problem. If the exception code is greater than 0 then the number represents a Modbus exception code. If it is less than 0 then it represents other errors. For example, -1 indicates that the request timedout or that the master did not receive any valid response of the request within the master request timeout period as set by the thing configuration.

The following constants are available for this function:

For exceptionCode:

• val EXCEPTION_CODE_TIMEOUT = -1
• val EXCEPTION_CODE_SUCCESS = 0
• val EXCEPTION_CODE_ILLEGAL_FUNCTION = 1
• val EXCEPTION_CODE_ILLEGAL_DATA_ADDRESS = 2
• val EXCEPTION_CODE_ILLEGAL_DATA_VALUE = 3
• val EXCEPTION_CODE_SLAVE_DEVICE_FAILURE = 4
• val EXCEPTION_CODE_ACKNOWLEDGE = 5
• val EXCEPTION_CODE_SLAVE_DEVICE_BUSY = 6
• val EXCEPTION_CODE_MEMORY_PARITY_ERROR = 8
• val EXCEPTION_CODE_GATEWAY_PATH_UNAVAILABLE = 10
• val EXCEPTION_CODE_GATEWAY_TARGET_DEVICE_FAILED_TO_RESPOND = 11

brickletRS485GetChipTemperature()¶

Return Map:	temperature – Type: int, Unit: 1 °C, Range: [-215 to 215 - 1]

Returns the temperature as measured inside the microcontroller. The value returned is not the ambient temperature!

The temperature is only proportional to the real temperature and it has bad accuracy. Practically it is only useful as an indicator for temperature changes.

brickletRS485GetStatusLEDConfig()¶

Return Map:	config – Type: int, Range: See constants, Default: 3

Returns the configuration as set by the thing configuration

The following constants are available for this function:

For config:

• val STATUS_LED_CONFIG_OFF = 0
• val STATUS_LED_CONFIG_ON = 1
• val STATUS_LED_CONFIG_SHOW_HEARTBEAT = 2
• val STATUS_LED_CONFIG_SHOW_STATUS = 3

brickletRS485GetSPITFPErrorCount()¶

Return Map:	errorCountAckChecksum – Type: long, Range: [0 to 232 - 1] errorCountMessageChecksum – Type: long, Range: [0 to 232 - 1] errorCountFrame – Type: long, Range: [0 to 232 - 1] errorCountOverflow – Type: long, Range: [0 to 232 - 1]

Returns the error count for the communication between Brick and Bricklet.

The errors are divided into

• ACK checksum errors,
• message checksum errors,
• framing errors and
• overflow errors.

The errors counts are for errors that occur on the Bricklet side. All Bricks have a similar function that returns the errors on the Brick side.

brickletRS485Reset()¶

Calling this function will reset the Bricklet. All configurations will be lost.

After a reset you have to create new device objects, calling functions on the existing ones will result in undefined behavior!

brickletRS485GetIdentity()¶

Return Map:

uid – Type: String, Length: up to 8 connectedUid – Type: String, Length: up to 8 position – Type: char, Range: ['a' to 'h', 'z'] hardwareVersion – Type: short[], Length: 3 0: major – Type: short, Range: [0 to 255] 1: minor – Type: short, Range: [0 to 255] 2: revision – Type: short, Range: [0 to 255] firmwareVersion – Type: short[], Length: 3 0: major – Type: short, Range: [0 to 255] 1: minor – Type: short, Range: [0 to 255] 2: revision – Type: short, Range: [0 to 255] deviceIdentifier – Type: int, 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. 

Internal Actions¶

brickletRS485ReadUID()¶

Return Map:	uid – Type: long, Range: [0 to 232 - 1]

Returns the current UID as an integer. Encode as Base58 to get the usual string version.