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  9. VBA: How to get a Word from opc-ua server?

VBA: How to get a Word from opc-ua server?

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07 Aug 2015 13:11 #3481 by support
Replied by support on topic VBA: How to get a Word from opc-ua server?
Unfortunately this is a question that should be directed to the OPC server vendor.

On our side, as long as you provide a valid NodeId and the server returns a value, we will give you the value (sometimes with conversions necessary to adjust to the COM world).

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07 Aug 2015 12:03 #3480 by LaurentzT
VBA: How to get a Word from opc-ua server? was created by LaurentzT
Hello,


I'm testing your COM object in MS Access and this code works fine:

Dim strTest As String
strTest = client.ReadValue("opc.tcp://STP-OPC-01.domain1.local:55101?None?opcfoundation.org/UA/SecurityPolicy#None", "ns=3;s=s7400.db500.88,x0") 'bool

strTest = client.ReadValue("opc.tcp://STP-OPC-01.domain1.local:55101?None?opcfoundation.org/UA/SecurityPolicy#None", "ns=3;s=s7400.db500.89,b") 'Byte

strTest = client.ReadValue("opc.tcp://STP-OPC-01.domain1.local:55101?None?opcfoundation.org/UA/SecurityPolicy#None", "ns=3;s=s7400.db500.90,w") 'Int

but I don't know the syntax to get a Dint, Word, DWord, Real, Date, Time, Char and String.

Any idea?

db500 is the database
88 is the address
x0 is the datatype

Thanks!

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