testPVAuxInfo
structure 
    double value 0
    structure alarm
        int severity 0
        int status 0
        string message 
    structure timeStamp
        long secondsPastEpoch 0
        int nanoSeconds 0
        int userTag 0
    structure display
        double limitLow 0
        double limitHigh 0
        string description 
        string format 
        string units 
    auxInfo
        string  factoryName
        double  3
    structure control
        double limitLow 0
        double limitHigh 0
        double minStep 0
 offset 0 next 20 number 20
value offset 1 next 2 number 1
alarm offset 2 next 6 number 4
severity offset 3 next 4 number 1
status offset 4 next 5 number 1
message offset 5 next 6 number 1
timeStamp offset 6 next 10 number 4
secondsPastEpoch offset 7 next 8 number 1
nanoSeconds offset 8 next 9 number 1
userTag offset 9 next 10 number 1
display offset 10 next 16 number 6
limitLow offset 11 next 12 number 1
limitHigh offset 12 next 13 number 1
description offset 13 next 14 number 1
format offset 14 next 15 number 1
units offset 15 next 16 number 1
control offset 16 next 20 number 4
limitLow offset 17 next 18 number 1
limitHigh offset 18 next 19 number 1
minStep offset 19 next 20 number 1