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Turn for electronsTurn for positrons



Figure 1-a: The sequence [0,1,2,3] is sorted according to the direction of the electrons beam: starting from rack 063 (DEVIL364 > 365 > 366 > 367)

Figure 1-b: The sequence [1,0,3,2] is sorted according to the direction of the positrons beam:, starting from rack 071 (DEVIL365 > 364 > 367 > 366)


Details

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Examples

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readDEVILSocket.vi

This VI reads and returns the last data acquired from the 4 DEVILs. It doesn't perform any data reordering or padding (see "Details" paragraph below). The X and Y arrays have 32 components, such as the number of channels of the multiplexer connected to the DVM.

Controls

Data type

Name

Description

booleaninit

T = initialize, F = regular run
init = T: some constant values are loaded into the VI shift registers.

init = F: reads the socket "socketNumber" from the VME memory of the DEVIL "DEVILIndex" and returns the two parts 

I32DEVILIndex

Index in the range [0, 1, 2, 3] corresponding to:

INDEX   0,   1,   2,   3
DEVIL 364, 365, 366, 367
RACK   63,  71,  70,  66
I32socketNumberPointer to the acquisition buffer in the range [0, 1926]
[DBL]part XArray of 32 DBL components containing the raw values of the X signals coming from both electron and positron BPMs. The components are in the same order of the values in the DEVIL memory locations.
[DBL]part YArray of 32 DBL components containing the raw values of the Y signals coming from both electron and positron BPMs. The components are in the same order of the values in the DEVIL memory locations.
errorClustererrorIn

When true, the VI does nothing and simply passes the error out.

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This VI is a functional global that stores, holds and returns the last X and Y parts acquired from the 4 DEVILs. It The X and Y arrays have 32 components, such as the number of channels of the multiplexer connected to the DVM. This VI doesn't perform any data reordering or padding. Data are not queued: each write operation with the same DEVILIndex overwrites the previous one.

Controls

Data type

Name

Description

I32DEVILIndex

Index in the range [0, 1, 2, 3] corresponding to:

INDEX   0,   1,   2,   3
DEVIL 364, 365, 366, 367
RACK   63,  71,  70,  66
enummode

[init, read, write X and Y, write X, write Y] (read)

  • init: the internal shift register are initialized (all zeros);
  • read: returns "part X" and "part Y" from the arrays specified by "DEVILIndex";
  • write X and Y: stores simultaneously"part X" and "part Y" into the arrays specified by DEVILIndex. Both inputs must have 32 components otherwise no one of them will be stored;
  • write X: stores "part X" only to the buffer specified by DEVILIndex. The array must have 32 components otherwise it will not be stored. The "part Y" array is kept unmodified;
  • write Y: stores "part Y" to the buffer specified by DEVILIndex. The array must have 32 components otherwise it will not be stored. The "part X" array is kept unmodified.
[DBL]part XArray of 32 DBL components containing the raw values of the X signals coming from both electron and positron BPMs. The components are in the same order of the values in the DEVIL memory locations.
[DBL]part XArray of 32 DBL components containing the raw values of the Y signals coming from both electron and positron BPMs. The components are in the same order of the values in the DEVIL memory locations.
errorClustererrorIn


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