Scalers

Read scalers using xscaler GUI

• Login as cdaq to cdaql1
  • To see HMS scalers type: go_xscaler_hms
  • To see SHMS scalers type: go_xscaler_shms
• The file scaler.map, located in ~/SCALERS, is used to map the names to the scaler crate, slot and chan.

Hardware Configuration

• HMS scalers are a VME crate. The cpu is hcvme05.
• SHMS scalers are a VME crate. The cpu is hcvme08.

Scaler Software

Scaler Server

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• To directly read the scalers
  • login is as cdaq on cdaql1
    • execute: getscalers hcvme05 for HMS
    • execute: getscalers hcvme08 for SHMS
  • There is an option to clear the scalers, put please do not do this in the middle of the run!