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公开(公告)号：US10455060B2
公开(公告)日：2019-10-22
申请号：US15316428
申请日：2014-06-10
摘要： An OPC UA session is interpreted as a single transaction according to the invention. In this case, a transaction means that all service calls, apart from the abovementioned calls, are initially only simulated and are not executed and the execution of the service calls is shifted to the termination of the transaction. Each operation inside a session is formally checked and then simulated. The simulated result or the result of the formal check is immediately sent to the client. The client therefore receives a preview of the result of the operations. If the client determines that one of the operations carried out would not lead to the desired result, the client can reject the operations. If the client wants the set operation to be carried out, the client terminates the current session.
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公开(公告)号：US11073822B2
公开(公告)日：2021-07-27
申请号：US15514308
申请日：2014-09-25
IPC分类号： G06F15/16 , G05B19/418 , H04L29/06
摘要： A method for operating a server device in a system is disclosed. The server device determines a current process value of at least one process parameter of a process controlled by the system and transmits the determined current process values to a plurality of client devices in the system for each process parameter or a subset thereof via a data network. According to the invention, the server device forms a variable group for at least one process parameter which is to be transmitted to more than one of the client devices. The server device then combines in each case the current process values of the at least one process parameter in the variable group at the different transmission times to form a single multi-target message and at the different transmission times to form a single multi-target message and transmits the multi-target message to a group address in the data network.
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