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<== Date ==> | <== Thread ==> |
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Subject: | Re: Remote IOC reboot [was: EPICS for implementation of Remote Procedure Call] |
From: | Maren Purves <[email protected]> |
To: | Rolf Keitel <[email protected]> |
Cc: | [email protected] |
Date: | Thu, 16 Apr 2009 08:56:31 -1000 |
Hi Emmanuel, we have taken a similar approach as Rolf suggests, but using networked power switches. It's an extra expense, but as we do a lot of work remotely most of our computers at the telescopes (not just IOCs) are on networked power switches now. You just log into the switch it's connected to and power cycle. Maren Rolf Keitel wrote:
Hi Emmanuel,As a last resort, in the cases where the IOC is not accessible via CA, we implemented for our (less expensive) VME crates a remote power cycle. The crate's power supply is switched off by an external +24V signal which is provided by a PLC or another IOC. Important is only that the external signal is ultimately controlled by an IOC which is different from the one you are resetting.- rolf - Ralph Lange wrote:......For other (aka less expensive) crates some labs have developed VME cards that can be remotely accessed and are able to pull the VME reset line (plus more functionality). That is not free: A separate card always uses an extra slot.