[Dsg-hallc_epics] Hall C PV list and questions

[Tyler Lemon]

Hello Mike, 

We were able to find more Hall C PVs on using the browser on myaPlot. 

Attached is an Excel sheet of all of the PVs we've found so far. There are 10 PVs per magnet plus one rotation angle for each spectrometer (a total of 92 PVs). 

Are there any Hall C PVs missing? 

Also, I have a few quesitons on the PVs: 

1.) Is it correct to say the following: 
PVs ending in "_T_He_av" are the average liquid helium temperature in Kelvin of the specified magnet. 
PVs ending with "_LVDT_true" are valve positions whose units are in percentage that the valve is open. 

2.) What are the PVs containing "_m_flow_" measuring? 

3.) What does CL, R, L, N, and P signify in the PVs containing "_m_flow_"? 

4.) What are the PVs containing "_h_LHe" measuring? 

5.) On any screens, should polarity status be indicated by a separate Boolean indicator? Or should polarity be indicated by negating the current displayed? For example, if HMS Q1 is at negative polarity and 600 A, ecQ1_I_coarse and ecQ1_I_True would read -600 A. 


Best regards, 
Tyler 

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