Ethernet to multi-CAN gateway for VLT MOONS instrument control

Pablo Gutierrez; David Atkinson; Steven Beard; Nicola Di Lieto

doi:10.1117/12.2557215

13 December 2020 Ethernet to multi-CAN gateway for VLT MOONS instrument control

Pablo Gutierrez, David Atkinson, Steven Beard, Nicola Di Lieto

Proceedings Volume 11452, Software and Cyberinfrastructure for Astronomy VI; 114522A (2020) https://doi.org/10.1117/12.2557215
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Conference Poster

Abstract

The MOONS instrument is a new Multi-Object Optical and Near-infrared Spectrograph for the Very Large Telescope (VLT) . The instrument design aims to deploy nearly 1000 fibers over the field of view requiring to control nearly 2000 actuators by the same number of CAN bus stepper motor drives through 15 independent CAN bus networks. All this massive traffic and extensive wiring can be merged down into a single Ethernet line by means of 3 Ethernet to Multi-CAN Gateways (EtherCAN) and an Ethernet switch. This is possible today due to emerging multi-CAN ARM microcontrollers, which provide highly embedded solutions suited to be located closer to the sensitive areas of the instrument, where power dissipation and space are critical.

Conference Presentation

Citation Download Citation

Pablo Gutierrez, David Atkinson, Steven Beard, and Nicola Di Lieto "Ethernet to multi-CAN gateway for VLT MOONS instrument control", Proc. SPIE 11452, Software and Cyberinfrastructure for Astronomy VI, 114522A (13 December 2020); https://doi.org/10.1117/12.2557215

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