OPC Data Access Custom Interface
Specification Version 3.0
F O U N D A T I O N
Released
NON-EXCLUSIVE LICENSE AGREEMENT
The OPC Foundation, a non-profit corporation (the “OPC Foundation”), has established a set of standard
OLE/COM interface protocols intended to foster greater interoperability between automation/control
applications, field systems/devices, and business/office applications in the process control industry.
The current OPC specifications, prototype software examples and related documentation (collectively, the
“OPC Materials”), form a set of standard OLE/COM interface protocols based upon the functional
requirements of Microsoft’s OLE/COM technology. Such technology defines standard objects, methods,
and properties for servers of real-time information like distributed process systems, programmable logic
controllers, smart field devices and analyzers in order to communicate the information that such servers
contain to standard OLE/COM compliant technologies enabled devices (e.g., servers, applications, etc.).
The OPC Foundation will grant to you (the “User”), whether an individual or legal entity, a license to use,
and provide User with a copy of, the current version of the OPC Materials so long as User abides by the
terms contained in this Non-Exclusive License Agreement (“Agreement”). If User does not agree to the
terms and conditions contained in this Agreement, the OPC Materials may not be used, and all copies (in
all formats) of such materials in User’s possession must either be destroyed or returned to the OPC
Foundation. By using the OPC Materials, User (including any employees and agents of User) agrees to be
bound by the terms of this Agreement.
LICENSE GRANT
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Subject to the terms and conditions of this Agreement, the OPC Foundation hereby grants to User a non-
exclusive, royalty-free, limited license to use, copy, display and distribute the OPC Materials in order to
make, use, sell or otherwise distribute any products and/or product literature that are compliant with the
standards included in the OPC Materials.
All copies of the OPC Materials made and/or distributed by User must include all copyright and other
proprietary rights notices include on or in the copy of such materials provided to User by the OPC
Foundation.
The OPC Foundation shall retain all right, title and interest (including, without limitation, the copyrights) in
the OPC Materials, subject to the limited license granted to User under this Agreement.
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User acknowledges that the OPC Foundation has provided the OPC Materials for informational purposes
only in order to help User understand Microsoft’s OLE/COM technology. THE OPC MATERIALS ARE
PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
INCLUDING, BUT NOT LIMITED TO, WARRANTIES OF PERFORMANCE, MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. USER BEARS ALL RISK
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OPC Foundation and its members do not warrant that the OPC Materials, their design or their use will meet
User’s requirements, operate without interruption or be error free.
IN NO EVENT SHALL THE OPC FOUNDATION, ITS MEMBERS, OR ANY THIRD PARTY BE
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OR INJURIES INCURRED BY USER OR ANY THIRD PARTY AS A RESULT OF THIS
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2013-02-28
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小Z不逆天2013-03-13好东西，不过我觉得2.05比较好。3.0貌似现在不普及
