hello,

thank you for your response.
i found the problem - and that how you said defention in vendor Kepware.

if the Device properties in kepware if the properties are :
request timeOut = 1000 milliseconds
fail after 3 successive timwouts
than it takes the opcLabs to return answer after 3.1-3.5 seconds when the tag is in status bad.

if the Device properties in kepware if the properties are :
request timeOut = 1000 milliseconds
fail after 1 successive timwouts
than it takes the opcLabs to return answer after 1.1-1.5 seconds when the tag is in status bad.

thank you,
Adi Damty

hello,

it still takes a lot of time to read tag and get an answer when the tag status is bad. i tried all the function Read\ReadMultiple\ReadValue\ReadMultipleValues and in all of them when the status is good it takes 3.5 seconds for 1 tag. in th log below you can see if that i try reading 8 tag with status good - it returns answer after 0.7 seconds and when i try to read 8 tags with status bad it takes 24 seconds to return answer.
what is the problem ?
why does it takes so long ?

thank you,
Adi Damty

2015-03-22 09:46:37 – NiranSimulator_LinePLC.OMRON_CQM51.SemiAutoMode NiranSimulator_LinePLC.OMRON_CQM51.Extruder_on
2015-03-22 09:46:37 – Function Read : 00:00:00.1191332, num of items 2
2015-03-22 09:46:38 – NiranSimulator_LinePLC.OMRON_CQM51.NewCoilCounter NiranSimulator_LinePLC.OMRON_CQM51.CoilStatus NiranSimulator_LinePLC.OMRON_CQM51.MtsCounter NiranSimulator_LinePLC.OMRON_CQM51.DripperCounter NiranSimulator_LinePLC.OMRON_CQM51.CoilTimeSec NiranSimulator_LinePLC.OMRON_CQM51.LineSpeed NiranSimulator_LinePLC.OMRON_CQM51.IsLastCoilInStack_High NiranSimulator_LinePLC.OMRON_CQM51.IsLastCoilInStack_Low
2015-03-22 09:46:38 – Function Read : 00:00:00.7264751, num of items 8
2015-03-22 09:47:03 – NiranSimulator_DoserPLC.OMRON_CQM51.GMM NiranSimulator_DoserPLC.OMRON_CQM51.Total NiranSimulator_DoserPLC.OMRON_CQM51.PerSt NiranSimulator_DoserPLC.OMRON_CQM51.PerMe NiranSimulator_DoserPLC.OMRON_CQM51.HiTotal NiranSimulator_DoserPLC.OMRON_CQM51.HiOutput NiranSimulator_DoserPLC.OMRON_CQM51.HiPerMe NiranSimulator_DoserPLC.OMRON_CQM51.HiPerSt
2015-03-22 09:47:03 – Function Read : 00:00:24.7684239, num of items 8

hello,

the problem is with the function ReadMultipleValues. the function return array or errors ( for 5 tags, where the kepware located at the same machine where the service is running ) but it happened after 7 seconds while when the status is good it takes 1 second.
there isn't configuration for this ? or this is bug ?
i am using opc 5.30.1114.1

thank you,
adi damty

hello,

I am using OPC-UA and when i read tag from the Kepware using OPC-UA and the status is good it takes about 1 second. when the status is bad - than it takes 7 seconds for the opc dll to return response. why is it takes so long ? is there any configuration that i can use to decrease this response time ?

thank you,
Adi Damty