PosCon3D

class compas_fab.sensors.baumer.PosCon3D(serial, address)[source]

Bases: compas_fab.sensors.base.SerialSensor

Provides an interface for the Baumer PosCon3D edge measurement sensor.

The sensor has different interfaces to retrieve its data. This class provides access to the serial interface (RS-485). This class is a context manager type, so it’s best used in combination with the with statement to ensure resource deallocation. The protocol of the sensor when operated via RS-485 indicates that access to it must be locked programmatically before starting operations and unlocked on completion. This is handled automatically if you use this class on a with statement, otherwise, the methods begin() and end() must be invoked by hand.

Attributes

serial (serial.Serial) – Instance of the serial port used to communicate with the sensor.
address (int) – PosCon3D sensors have an address assigned, which defaults to 1. There’s also a broadcast address (PosCon3D.BROADCAST_ADDRESS) that can be used to query the address of the sensor connected to the RS-485 bus. Only one sensor can be in the bus when using the broadcast address to query for sensor’s address.

Examples

>>> from serial import Serial                                                   
>>> with Serial('COM5', 57600, timeout=1) as serial:                            
>>>     with PosCon3D(serial, PosCon3D.BROADCAST_ADDRESS) as broadcast_query:   
...         addr = broadcast_query.get_address()                                
...                                                                             
...     with PosCon3D(serial, addr) as sensor:                                  
...         sensor.set_measurement_type('Edge L rise')                          
...         sensor.set_precision(2)                                             
...         data = sensor.get_measurement()

Methods

`__init__`(serial, address)	Initialize self.
`activate_flex_mount`(reference_thickness)	Activates the FLEX Mount feature of the sensor to allow positioning it on an angled installation.
`adjust_to_dark_object`(is_dark_object)	Adjusts the sensor to detect darker or lighter surfaces.
`begin`()	Locks the sensor to start RS-485 communication.
`calculate_checksum`(command)	Checks that message is complete.
`deactivate_flex_mount`()	Deactivates the FLEX Mount feature.
`end`()	Unlocks the sensor from RS-485 communication.
`format_command`(address, command[, data])	Formats the command.
`get_address`()	Gets the address of the RS-485 sensors currently connected to the bus.
`get_live_monitor_data`()	Retrieves the distance to the surface in the center of the laser beam and the angle at which it’s found.
`get_measurement`()	Retrieves the current measurement of the sensor according to the current settings.
`get_payload`(result)	Gets payload.
`reset`()	Resets the sensor to factory settings.
`send_command`(address, command[, data])	Sends a command to the sensor’s address specified.
`set_edge_height`(height)	Defines the minimum height of an edge to be detected.
`set_flex_mount`(angle, distance)	Sets the FLEX Mount feature to a specific angle and distance.
`set_measurement_type`(measurement_type)	Defines the measurement type to use.
`set_precision`(precision)	Defines the precision the sensor will use to determine edges:

Attributes

`BROADCAST_ADDRESS`
`ERROR_CODES`
`FRAME_HEAD`
`FRAME_TAIL`
`MEASUREMENT_TYPES`
`QUALITY`

PosCon3D

COMPAS