This package implements a communications protocol in labview to work with Twinleaf sensors using Twinleaf I/O (TIO) as the communications layer. Data from the sensors is received via PUB messages and sensor parameters may be changed using REQ/REP messages.
An included example for monitoring data from a Twinleaf VMR vector magnetometer.
- National Instruments Labview 2017. Conversion to earlier versions is available on request.
- National Instruments VISA 2017 to use the serial port directly.
Unzip or clone into the instr.lib folder in the Labview installation directory.
Several example VIs are available:
- VM Monitor: view and log data from a Twinleaf VMR sensor.
- CSB Control: Adjust the output of a Twinleaf CSB current supply.
These examples can be called with "url" that is either a serial port (ASRL47::INSTR, COMx) or a net url such as tcp://localhost if using a serial port proxy such as the one in tio-tools.
The execution is threaded by virtue of three separate loops: an event loop (top), a stream loop (middle), and, in this case, a signal processing loop (bottom). Stream data returns from the TIO Device Tick VI and can be converted to a useful array using TIO Data Stream. RPC is handled using named queues.
- Heartbeat
- Close port
- Multi-device synchronization support