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TN MES109 Example API Call to Read Lot Attribute Data in MES

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This article from InSource Provides an example script to read a Lot Attributes data in Wonderware MES using the Stateless API. 


  • Author: Michael Walker
  • Published: 09/25/2015
  • Applies to: Wonderware MES 2014 and Later




Below is the example script.  Note the To Do comments to make the script functional. 



dim oResult as aaMES.Result;
dim ItemID as string;
dim LotNo as string;

dim Attr as string;
dim oDS as System.Data.DataTable;
dim oDR as System.Data.DataRow;


''To Do - Set ItemID, Attr and LotNo strings here!

        oResult = aaMES.Prod.aaLotAttr.GetAttrs(ItemID,LotNo,"Admin");
        if (oResult.Success == true) then
            oDS = oResult.DataSet_Value.Tables(0);
                if oDS.Rows.Count > 0 then
                    for each oDR in oDS.Rows();
                        if oDR["attr_desc"] == Attr then
                            logmessage( oDR["attr_value"].ToString()); 

   ''To Do - Set Object Attibute or other data here to return from API Call!