Physics – Accelerator Physics
Scientific paper
2001-11-07
eConf C011127:THAP047,2001
Physics
Accelerator Physics
3 pages, ICALEPCS-2001
Scientific paper
A remote data acquisition chassis, called a HOTLink Rack Monitor, HRM, has been developed for use in the Fermilab control system. This chassis provides for 64 analog input channels, 8 analog output channels, and 8 bytes of digital I/O. The interface to the host VMEbus crate is by way of a 320 MHz HOTLink serial connection to a PMC mezzanine module. With no processor intervention, all data sources in the remote chassis are read at 100 microsec intervals, timestamped, and stored in a 2 MB circular buffer on the PMC module. In operation, the memory always contains the most recent 16k samples of 10 kHz data from all 64 analog input channels. An expansion module that resides in the HRM chassis records snapshot data for 8 analog channels, each channel consisting of up to 16k readings, digitized at rates up to 10 MHz. Snapshot data is also returned and stored in buffers on the PMC module. Because the HRM presents a memory-mapped interface to the host, it is independent of the operating system and may be used in any system that supports PMC mezzanine modules.
Franck A. R.
Goodwin R. W.
Kasley P. A.
Shea M. F.
No associations
LandOfFree
HOTLink Rack Monitor does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with HOTLink Rack Monitor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and HOTLink Rack Monitor will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-421693