Experimental Physics and
Industrial Control System

Andrew Johnson <[email protected]> · Tue, 31 Mar 2015 14:44:37 -0500

Hi Matej,

On 03/31/2015 07:54 AM, Matej Sekoranja wrote:
> Just a quick question: I’ve updated CAS code and I want to test it.
> My plan is to take makeBaseApp example caServer and change scan
> method to change array size (aka new_size = (size+1) % 10).
> However, I cannot get monitors working (I get no updates… even the
> first one). Is it supported to work? The code surely looks so. Note
> that it worked one time (one try out of 20) :/

I just built the makeBaseApp caServer example and ran it with no
arguments. It creates a fixed set of PV names in exServer.cc, so I
connected to the first one:

tux% caget jane
jane                           0.251968
tux% cainfo jane
jane
    State:            connected
    Host:             tux.aps.anl.gov:5064
    Access:           read, write
    Native data type: DBF_DOUBLE
    Request type:     DBR_DOUBLE
    Element count:    1
tux% camonitor jane
jane                           2015-03-31 14:37:48.289811 0.363631
jane                           2015-03-31 14:37:49.105167 0.297269
jane                           2015-03-31 14:37:49.200278 0.286364
jane                           2015-03-31 14:37:49.295394 0.285211
jane                           2015-03-31 14:37:49.390555 0.191317
...

There appear to be two array PVs, alan and albert:

tux% cainfo alan
alan
    State:            connected
    Host:             tux.aps.anl.gov:5064
    Access:           read, write
    Native data type: DBF_DOUBLE
    Request type:     DBR_DOUBLE
    Element count:    100
tux% cainfo albert
albert
    State:            connected
    Host:             tux.aps.anl.gov:5064
    Access:           read, write
    Native data type: DBF_DOUBLE
    Request type:     DBR_DOUBLE
    Element count:    1000

I ran a monitor on alan and did get updates at approximately 2-second
intervals:

alan 2015-03-31 14:41:30.308907 100 0.0281111 -1.37381 -0.0501572
-1.87784 -0.0724163 -2.59972 10 -2.09125 1.98438 2.05837 10 2.01229
2.09781 1.98737 10 -2.10059 0.019677 0.973619 -1.9144 1.94156 0.0663385
1.5041 0.0853122 1.89756 -10 1.47849 -10 -1.88661 10 2.04674 0.0998941
1.91355 -0.0615228 -1.91691 -10 -2.02705 0.0651823 2.1016 0.0380806
-1.93923 0.0770579 2.62829 0.0993508 -1.98814 -1.93405 -1.43175
0.0739289 -2.08905 0.0791035 1.25692 10 -2.06133 -0.0976014 -1.47581 -10
-2.07948 -1.97491 -1.22827 -0.0803436 -1.98453 2.05749 -1.36555
-0.0819845 -2.00783 2.09792 1.93183 1.90012 2.00088 0.0827901 -2.46831
10 -2.00536 -0.0488323 -2.66015 10 -1.92829 10 1.99522 1.90963 -2.08556
0.035228 -1.37246 2.06614 1.82821 -2.01243 -1.2947 -0.090387 -2.03256
0.0768224 -1.46944 -2.09861 2.10339 -10 1.22894 2.03087 -2.05932 10
-1.89597 -1.909 1.78418
alan 2015-03-31 14:41:43.674576 100 0.0853598 1.29053 -10 -1.92847
-0.0969795 -1.40443 -10 -2.08363 0.0849282 -1.38379 -0.0987254 -2.0946
0.0862604 2.56504 0.0479391 -1.91148 -0.078574 1.9901 -2.00295 1.90767
-0.0603079 2.60706 10 2.0883 0.0643035 2.07442 -2.06107 1.99286
0.0994668 2.6072 -0.0100181 -2.05559 0.0250058 1.23494 -0.0368261 1.9684
0.00206198 -2.0871 0.0141491 2.07869 0.0948962 1.28269 0.0743063 1.91721
0.0999062 1.3875 -2.09855 2.04559 -0.0255224 -2.66151 -10 1.97276
0.0948873 -2.5551 -10 -2.0382 0.0562314 2.56209 10 1.92939 1.95493
1.50592 0.0967445 2.01051 2.0287 -1.47036 -10 -1.9629 0.00887928
-2.46858 -2.06924 -2.0951 0.0326452 1.28041 -1.902 2.10855 0.093258
1.27432 -10 -2.07336 -0.0993881 1.50338 0.0971787 2.05764 10 1.38648 -10
-2.07846 2.0619 -1.91754 2.09746 -1.94883 10 1.40086 0.00148764 -2.10204
2.09958 1.50572 0.0764796 1.80712
alan 2015-03-31 14:41:45.670113 100 1.99038 1.33862 -0.0366539 1.82196
-0.0803481 -2.4766 -10 -1.94076 -0.0404291 -1.4677 0.0672416 -2.01883
-0.079026 -2.60114 0.0272036 -1.91046 0.0425553 1.31998 0.0978497
-1.82747 0.0996829 -1.34931 -0.0128216 -2.01298 -10 1.49011 2.09999
2.12744 -0.0691764 1.2244 -0.099818 -1.92703 2.08421 -1.49781 10 1.99197
0.010173 -2.06323 0.0560521 1.93894 10 -1.46341 0.0631703 1.97924
-0.0987476 2.48062 -10 1.91496 -0.0532784 1.46752 -1.94502 1.92071
0.0619675 -1.96381 0.0880527 1.93956 -10 1.40031 1.99663 2.11775
-1.90065 -1.13485 0.0233576 -2.07014 2.05053 1.10947 1.94223 1.94585
-0.0437987 -1.27021 0.00902123 2.04099 -0.0966582 0.934403 -1.92521
-2.02095 2.09998 1.15595 -10 1.92619 -10 1.49681 -10 1.82596 0.0152453
1.39714 -0.0358195 1.90327 -0.0473308 1.41716 -0.0995372 1.84132
0.0971676 -1.91778 -1.97241 1.90991 -0.0695922 -1.17116 -1.92475 -2.05158
...

I built this against the tip of the 3.15 branch.

HTH,

- Andrew

-- 
Light thinks it travels faster than anything but it is wrong.
No matter how fast light travels, it finds the darkness has
always got there first, and is waiting for it.
    -- Terry Pratchett, Reaper Man

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System