Protecting CAN Tcvrs
Bruce Coward <[email protected]>
| Newsgroups | gmane.comp.hardware.bus.can |
|---|---|
| Message-ID | <[email protected]> |
We have been using a mix of CAN Tcvrs for a while now and found them to be tolerant of quite a lot of abuse on the CAN lines. We normally take CAN-H and CAN-L straight to the CAN socket without any filtering or spike protection and this has been ok over 5,000 product shipments. However I am now running in an environment were a lot of hydraulic solenoids are being powered from the same vehicle battery and on a 15 node net have already lost 5 CAN Tcvrs. I presume that this is either inductive or power supply linked high voltage spikes generated when the solenoid is de-powered. We are protecting the PSU with reverse diodes and a chunky Transzorb. Can anybody recommend a suitable protection device or plan for the CAN interface that might prevent this problem reoccurring in the future? Many thanks Bruce Coward Offshore Systems (UK) Ltd T: +44(0)1425 610022 F: +44(0)1425 614794 SKYPE: OSUKL1 E: [email protected]<mailto:[email protected]> W: www.osukl.com<http://www.osukl.com> Offshore Systems (UK) Ltd is registered in England & Wales at Unit 11 Milton Business Centre, Wick Drive New Milton, Hampshire BH25 6RH. Co Reg No.04872314 VAT No. 824003083. The information contained within this email is the property of Offshore Systems (UK) Ltd and is intended solely for the person or organisation to which it is addressed. It is strictly confidential and may contain privileged information. If you are not the intended recipient please advise us and delete immediately. Unauthorised use is strictly prohibited and may be unlawful.