[mariodavid]

https://imgur.com/a/DEC6Cxo

https://imgur.com/a/FiSV7O4

https://imgur.com/a/k7GwP5Z

https://imgur.com/a/EeQN7Kq

[mariodavid]

https://imgur.com/a/5z1tsaN

https://imgur.com/a/lW7E584

I found this in the library OpcComRcw. How do I implement this in the KpOpclogic?

[mariodavid]

Hi, I am using mpi/usb protocol to connect to plc s7-300. I have not found another server that is compatible with mpi / usb. There is SIMATIC NET but is paid.

[mariodavid]

http://www.diit.unict.it/users/scava/dispense/II_270/OPCDACOMOverview.pdf

said that IOPCSyncIO is required in Data Access Server 1,2 and 3.

[mariodavid]

“In the source code I just use daServer.Write(new Opc.Da.ItemValue[] { itemVal }); and the library made by OPC Foundation choose lo-level method WriteVQT”.

the library made by OPC Foundation are not free but, Is there another method using the same library?

I am sure that I can write with this method: IOPCSyncIO::Write

[mariodavid]

OPC_E_NOTSUPPORTED 0xC0040406 If a client attempts to write any value, quality,
timestamp combination and the server does not
support the requested combination (which could
be a single quantity such as just timestamp), then
the server will not perform any write and will
return this error code.

I found it here: https://digitalsupport.ge.com/servlet/fileField?id=0BE1A000000TPEf

the opc libraries are paid,
Is there any other way to use other libraries to use another method?

[mariodavid]

Hi, I replaced the new file with the previous one in the folder SCADA/ScadaComm/KP.

opc analyzer:

OPC Analyzer Trace – Application Version 1.2.1012
saved on mar 23. oct 12:43:06 2018

12:42:40.810 – IOPCItemIO::WriteVQT ————————————————————-
General:
HRESULT: 0x00000001 S_FALSE

In Parameters:
pszItemIDs:
[0] = PLC1.Generic.ACTIVAR_VALVULA_T1
dwCount: 1
pItemVQT:
Item 0:
vDataValue = VT_BOOL -1
bQualitySpecified = TRUE
wQuality = 0x00c0 OPC_QUALITY_GOOD
bTimeStampSpecified = FALSE
ftTimeStamp = 1601-01-01T00:00:00.000

Out Parameters:
ppErrors:
[000] 0xc0040406 OPC_E_NOTSUPPORTED

[mariodavid]

https://imgur.com/a/4Pf1dyy

https://imgur.com/a/17XbAAy

https://imgur.com/a/BFVmDwE

https://imgur.com/a/hahu8dU

[mariodavid]

Hi.

please let me know, I really need to write that tags.

[mariodavid]

Hello.

I try with 2.XX and and the same thing happens. Marc:

“Hello Mario,

I have been able to install rapid scada and am currently testing this on our system. I am having some trouble issuing a write – how are you doing that exactly on your end?

The reason I do not think this is an issue with the IBH server is that it actually responds with a “success” so I would expect that the write has been processed correctly – this is something I would like to see here on my end.

Kind Regards,

Marc”

Is it possible to write with IOPCSyncIO::Write?

[mariodavid]

Hi. The developer does not answer yet. I have been searching and some servers are not compatible with writeVQT method. https://advosol.com/manuals/opcdanet/topic177.html

Is there the possibility of writing with another method?

[mariodavid]

Will there be any difference if I use the 5.5.3 version? I am using 5.5.2 rapid scada version.

[mariodavid]

developer wrote: Hello Mario,

“The issue here is that the WriteVQT is writing a value of -1 (high) and a quality of Bad. Where the Quick Client write is only writing a -1 (high). Your other client needs to not write the quality bad if you want the quality to remain good and the write succeed.

Why is the rapid scada writing a bad quality? OPC Specs declare that the value is undefined if OPC quality is bad, so the server is not processing the write.

Thanks,
Marc”

[mariodavid]

developer wrote: Hello Mario,

“The issue here is that the WriteVQT is writing a value of -1 (high) and a quality of Bad. Where the Quick Client write is only writing a -1 (high). Your other client needs to not write the quality bad if you want the quality to remain good and the write succeed.

Why is the rapid scada writing a bad quality? OPC Specs declare that the value is undefined if OPC quality is bad, so the server is not processing the write.

Thanks,
Marc”

[mariodavid]

I use opc analyzer with quick ckient and rapid scada. this is the log.

first, quick client:

“OPC Analyzer Trace – Application Version 1.2.1012
saved on mar 9. oct 12:09:15 2018

12:08:35.437 – IOPCSyncIO::Write —————————————————————-
General:
GroupName: PLC1.Generic
GroupServerHandle: 0x5721688
HRESULT: 0x00000000 S_OK

In Parameters:
pItemValues:
[000] VT_BOOL -1
dwCount: 1
phServer:
[000] 0x06895348

Out Parameters:
ppErrors:
[000] 0x00000000 S_OK

12:08:35.967 – IOPCDataCallback::OnDataChange —————————————————
General:
HRESULT: 0x00000000 S_OK
GroupName: GRP06897320
numCallbacks: 10
minTime: 54.974 ms
averageTime: 134.769 ms
GroupServerHandle: 0x302398
maxTime: 508.228 ms
CallTime: 101.790 ms

In Parameters:
hrMasterquality: 0x00000000 S_OK
pvValues:
[000] VT_BOOL -1
[001] VT_BOOL -1
[002] VT_BOOL -1
dwCount: 3
hrMastererror: 0x00000000 S_OK
pftTimeStamps:
[000] 2018-10-09T16:08:35.608
[001] 2018-10-09T16:08:35.718
[002] 2018-10-09T16:08:35.718
dwTransid: 0
phClientItems:
[000] 0x00000008 [001] 0x0000000b [002] 0x00000013
hGroup: 0x0
pwQualities:
[000] 0x00c0 OPC_QUALITY_GOOD
::::
[002] 0x00c0 OPC_QUALITY_GOOD
pErrors:
[000] 0x00000000 S_OK
::::
[002] 0x00000000 S_OK

12:08:36.014 – IOPCDataCallback::OnDataChange —————————————————
General:
HRESULT: 0x00000000 S_OK
GroupName: PLC1.Generic
numCallbacks: 11
minTime: 0.139 ms
averageTime: 0.429 ms
GroupServerHandle: 0x5721688
maxTime: 2.238 ms
CallTime: 0.192 ms

In Parameters:
hrMasterquality: 0x00000000 S_OK
pvValues:
[000] VT_BOOL -1
[001] VT_BOOL -1
[002] VT_BOOL -1
dwCount: 3
hrMastererror: 0x00000000 S_OK
pftTimeStamps:
[000] 2018-10-09T16:08:35.718
[001] 2018-10-09T16:08:35.608
[002] 2018-10-09T16:08:35.718
dwTransid: 0
phClientItems:
[000] 0x003d4608 [001] 0x003d42f8 [002] 0x003d4138
hGroup: 0x3e2fe8
pwQualities:
[000] 0x00c0 OPC_QUALITY_GOOD
::::
[002] 0x00c0 OPC_QUALITY_GOOD
pErrors:
[000] 0x00000000 S_OK
::::
[002] 0x00000000 S_OK

12:08:39.009 – IOPCDataCallback::OnDataChange —————————————————
General:
HRESULT: 0x00000000 S_OK
GroupName: GRP06897320
numCallbacks: 11
minTime: 54.974 ms
averageTime: 132.910 ms
GroupServerHandle: 0x302398
maxTime: 508.228 ms
CallTime: 114.316 ms

In Parameters:
hrMasterquality: 0x00000000 S_OK
pvValues:
[000] VT_BOOL -1
[001] VT_BOOL 0
dwCount: 2
hrMastererror: 0x00000000 S_OK
pftTimeStamps:
[000] 2018-10-09T16:08:38.588
[001] 2018-10-09T16:08:38.588
dwTransid: 0
phClientItems:
[000] 0x00000004 [001] 0x00000008
hGroup: 0x0
pwQualities:
[000] 0x00c0 OPC_QUALITY_GOOD
[001] 0x00c0 OPC_QUALITY_GOOD
pErrors:
[000] 0x00000000 S_OK
[001] 0x00000000 S_OK

12:08:39.040 – IOPCDataCallback::OnDataChange —————————————————
General:
HRESULT: 0x00000000 S_OK
GroupName: PLC1.Generic
numCallbacks: 12
minTime: 0.139 ms
averageTime: 0.407 ms
GroupServerHandle: 0x5721688
maxTime: 2.238 ms
CallTime: 0.159 ms

In Parameters:
hrMasterquality: 0x00000000 S_OK
pvValues:
[000] VT_BOOL -1
[001] VT_BOOL 0
dwCount: 2
hrMastererror: 0x00000000 S_OK
pftTimeStamps:
[000] 2018-10-09T16:08:38.588
[001] 2018-10-09T16:08:38.588
dwTransid: 0
phClientItems:
[000] 0x003d44b8 [001] 0x003d42f8
hGroup: 0x3e2fe8
pwQualities:
[000] 0x00c0 OPC_QUALITY_GOOD
[001] 0x00c0 OPC_QUALITY_GOOD
pErrors:
[000] 0x00000000 S_OK
[001] 0x00000000 S_OK”

rapid scada:

“OPC Analyzer Trace – Application Version 1.2.1012
saved on mar 9. oct 12:11:09 2018

12:10:15.964 – IOPCItemIO::WriteVQT ————————————————————-
General:
HRESULT: 0x00000000 S_OK

In Parameters:
pszItemIDs:
[0] = PLC1.Generic.bandera_ESB
dwCount: 1
pItemVQT:
Item 0:
vDataValue = VT_BOOL -1
bQualitySpecified = FALSE
wQuality = 0x0000 OPC_QUALITY_BAD
bTimeStampSpecified = FALSE
ftTimeStamp = 1601-01-01T00:00:00.000

Out Parameters:
ppErrors:
[000] 0x00000000 S_OK”

[Author]

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