WHENEVER I WANT TO CREATE TAG TYPE THIS ERROR IS COMING IN OPC ITEM LIST. CAN ANYONE TELL ME WHAT IS THE PROBLEM.
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Your Freelance Engineering does not understand the access path to OPC variables. The variables You marked for creation of Tag_Type are from object PLC_PRG under PLC1 controller, but Freelance can't evaluate that. Most probably You did not change the default settings of OPC Server Resource (if I see correctly the rabigh_plc_1 object in Your Project Tree). Go to Your OPC-S header (or simply double-click it) and click "Configure Pattern" button. If You are using AC500 as Your PLC You can use predefined OPC Item Name Partitioning Pattern (choose AC500 from "Templates" drop down list). If it's not AC500 (or any other PLC with similar OPC Item naming) You need to choose "Custom" and create Your own Pattern (see "Help" button and ready templates).
It seem to me that the AC500 one should be ok for You, but You need to check it for Yourself.
Hope this helps,