4/21/2021 0 Comments Da 2.0 Da 2.05A
The OPC server is installed on a Windows PC and connects to multiple devices at a time using SCADA interfaces.OPC Certification requires extensive testing to ensure true interoperability.OPC Certification means multi-vendor system interoperability is guaranteed.If your OPC products are not certified, you need to ask your vendor what sort of guarantees they offer.
The affected sections include: TimeBias and DeadBand discussion in Group Object: General Properties (4.5.1). LocaleID for SetState (to make it clear the behaviour is optional). The specification is a result of an analysis and design process to develop a standard interface to facilitate the development of servers and clients by multiple vendors that shall inter-operate seamlessly together. Da 2.0 Da 2.05A Software Brand NamesTrademarks:Most computer and software brand names have trademarks or registered trademarks. Required Runtime Environment:This specification requires Windows 95, Windows NT 4.0 or later ii OPC Data Access Custom Interface Specification Version 3.0 ReleasedFOUNDATION NON-EXCLUSIVE LICENSE AGREEMENT The OPC Foundation, a non-profit corporation (the OPC Foundation), has established a set of standard OLECOM interface protocols intended to foster greater interoperability between automationcontrol applications, field systemsdevices, and businessoffice 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 OLECOM interface protocols based upon the functional requirements of Microsofts OLECOM technology. ![]() Da 2.0 Da 2.05A License To UseThe 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 Users 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: Subject to the terms and conditions of this Agreement, the OPC Foundation hereby grants to User a nonexclusive, royalty-free, limited license to use, copy, display and distribute the OPC Materials in order to make, use, sell or otherwise distribute any products andor product literature that are compliant with the standards included in the OPC Materials. All copies of the OPC Materials made andor 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. WARRANTY AND LIABILITY DISCLAIMERS: User acknowledges that the OPC Foundation has provided the OPC Materials for informational purposes only in order to help User understand Microsofts OLECOM technology. The OPC Foundation and its members do not warrant that the OPC Materials, their design or their use will meet Users requirements, operate without interruption or be error free. Upon any termination of this Agreement, User shall immediately cease all use of the OPC Materials, destroy all copies thereof then in its possession and take such other actions as the OPC Foundation may reasonably request to ensure that no copies of the OPC Materials licensed under this Agreement remain in its possession. User shall not export or re-export the OPC Materials or any product produced directly by the use thereof to any person or destination that is not authorized to receive them under the export control laws and regulations of the United States. ![]() Contractor manufacturer is the OPC Foundation, P.O. Box 140524, Austin, Texas 78714-0524. Should any provision of this Agreement be held to be void, invalid, unenforceable or illegal by a court, the validity and enforceability of the other provisions shall not be affected thereby. This Agreement shall be governed by and construed under the laws of the State of Minnesota, excluding its choice or law rules. This Agreement embodies the entire understanding between the parties with respect to, and supersedes any prior understanding or agreement (oral or written) relating to, the OPC Materials. It will be determined at a later time as to whether a Separate Document (The OPC Data Access Automation Specification 3.0) will be provided to describe the OPC Automation Interfaces which facilitate the use of Visual Basic, Delphi and other Automation enabled products to interface with OPC Servers. The following functionality has been added to this version of the OPC Data Access Custom Interface Specification Added new interfaces o IOPCBrowse o IOPCItemDeadbandMgt o IOPCItemSamplingMgt o IOPCItemIO o IOPCSyncIO2 o IOPCAsyncIO3 o IOPCGroupStateMgt2 Clarified startup issues and add WAITINGFORINITIALDATA quality status mask. Added Item Property 7, 8 for EUTYPE Clarify SetActiveState to indicate that an item transition from inactive to active will ultimately result in a quality change, triggering a callback. Add new server status enumeration (OPCSTATUSCOMMFAULT) Heading labels added to methods for easier access via the Table of Contents Removed Legacy Interfaces from this version of the specification o IOPCServerPublicGroups o IOPCBrowseServerAddressSpace o IOPCPublicGroupStateMgt o IOPCAsyncIO o IOPCItemProperties In addition, spelling, grammer, formatting and minor clarifications were added to improve the quality of the specification Added Item Properties section Clarify RemoveGroup Added CATIDs to idl Provided the ability to read and write the quality and timestamp KeepAlive mechanism was added to confirm the callback connection health Revision 2.05A HighlightsThis revision clarifies section 4.2.13 Note (5) regarding roundup when converting floats and doubles to integers. ![]() Revision 2.05 HighlightsThis revision includes numerous clarifications to Section 4.2.13 regarding data conversion between Native and Requested data types. Revision 2.04 HighlightsThis revision includes additional minor clarifications to certain ambiguities which were discovered during Interoperability sessions and during the development of the Compliance Test. The affected sections include: TimeBias and DeadBand discussion in Group Object: General Properties (4.5.1). LocaleID for SetState (to make it clear the behaviour is optional).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |