Re: Show areaDetector image with BOY IntensityGraph

[Phil Atkin <phil.atkin@pixelanalytics.co.uk>]

Thanks again Steven.

On 03/02/2016 17:11, Hartman, Steven M. wrote:

On Feb 3, 2016, at 11:54 AM, Phil Atkin <phil.atkin@pixelanalytics.co.uk> wrote:

I tried setting those environment values before CS-Studio is started, but actually it seems to make no difference.

CS-Studio (like most Java applications) has it own preferences for these rather then using the env vars. Preferences -> CSS Core -> EPICS for auto_addr_list and addr_list.  

Thanks: I looked for those, but for some reason did not recognize them.  They are set now.

Looking more carefully at what "Probe" within CS-Studio shows, I notice:
	• It correctly shows 'simple' PVs from my IOC
	• If I specify an erroneous PV name, it shows "UNDEFINED - Disconnected"
	• When I correctly specify my array name, it shows “INVALID - No value"

Those results are consistent with too-small of max_array_bytes. The client connects to the server, but cannot receive the data for the large array. 

max_array_bytes is set in CS-Studio to 16000000
In the startup of the IOC, I have

epicsEnvSet("EPICS_CA_MAX_ARRAY_BYTES", "8000000")

and then

dbLoadRecords("NDStdArrays.template", "P=$(PREFIX),R=image1:,PORT=Image1,ADDR=0,TIMEOUT=1,NDARRAY_PORT=$(PORT),TYPE=Int16,FTVL=SHORT,NELEMENTS=4000000")

and in fact, the array I'm trying to display is 500x500@16 bits. 

Is any of this incorrect?  Must the settings for client and server be the same?

Note, you need to restart CS-Studio after changing the EPICS network preference settings or max_array_bytes for the change to take effect. 

Worth knowing, but I have restarted since making the changes.

Phil

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