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Custom control hardware and DIM: a case study R. Fantechi 6/4/2011

Custom control hardware and DIM: a case study

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Custom control hardware and DIM: a case study. R. Fantechi 6/4/2011. The problem. Custom monitoring hardware developed for NA48 Measurement of voltages at the end of the distribution chains Measurement of currents in each chain Implementation - PowerPoint PPT Presentation

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Page 1: Custom control hardware and DIM: a case study

Custom control hardware and DIM: a case study

R. Fantechi6/4/2011

Page 2: Custom control hardware and DIM: a case study

The problem• Custom monitoring hardware developed for NA48

– Measurement of voltages at the end of the distribution chains

– Measurement of currents in each chain

– Implementation• Galvanically insulated ADC, referenced to HV line• Sequencer and readout memory as VME modules

• + additional VME pieces of any interest for NA62

Page 3: Custom control hardware and DIM: a case study

R. Fantechi - 11/12/2009

The monitoring system

Page 4: Custom control hardware and DIM: a case study

R. Fantechi - 11/12/2009

Voltage and current measurements

Page 5: Custom control hardware and DIM: a case study

The solution• Standalone readout of the VME hardware

– Implemented in C++– It is a DIM server– It publishes to PVSS 32 voltages and 32 currents, both in burst and

out of burst

– Implemented in summer 2010 by Brian O’Connell (George Mason)– Tested and validated up to PVSS

• Next update– In burst/out burst now fake implementation

• Add a section acting as a DIM client receiving a time message published by a NA62 server

– Move from Lynx-OS to Linux• Wait for a new processor, get rid of the old NA48 CPU and file base