![]() This protocol has built-in security with signed and encrypted data transfer using state-of-the-art encryption algorithms. OPC UA is supported by many SCADA, MES, and ERP software providers and uses a Client/Server architecture. ![]() Developed by the OPC Foundation, it is a machine to machine communication protocol for the industrial automation industry and retains all the core functions of OPC, effectively reducing the cost of system integration and allowing for data transfer between the onsite machines and upper layer management systems while still being firewall friendly. ![]() Other OPC server software displays these numerals correctly.OPC UA (Unified Architecture) is the next generation of OPC, featuring cross-platform interoperability, high security, and proven reliability. This reading changes from 0 to -1 (OFF & ON) instead of 0 to 1. The digital input channel shows "-1" which displays within our OPC client software when using NAPOPC DA server and the channel with "ON" condition. Is this a known problem and do you have a method to fix this? NAPOPC DA server uses 95-99% of CPU time independent of the polling rate that I specify in lookout. What is the performance of NAPOPC DA Server?Īfter upgrading a NAPOPC DA Server, why did I receive the following error message box. How to make sure that the NAPOPC DA Server loads the correct configuration file? The error "File NapOPCSvr is linked with no exist Export-OLE32.DLL: CoInitalizeEx" message pops up when starting up. ![]() On Windows 95, we received problems during the NAPOPC DA Server installation. Class not registered." message occurs while connecting to the NAPOPC DA Server. The "Error connecting to OPC 2.0 Server Browser. The NAPOPC DA Server individually detects all modules, but cannot simultaneously detect the second and first modules on the network. The NAPOPC DA Server shows OK for only one second and again shows bad status. The NAPOPC DA Server shows BAD status with the I-7017 module? How to fix it? How to hide the window of NAPOPC DA Server to prevent unexpected termination by other users? The "run-time errors '91' "message occurs while VB client demo connect to the NAPOPC DA Server?ĭo NAPOPC DA Server support PCI card module? How about the limit of NAPOPC DA Server for tag number using Modbus communication? How to solve NAPOPC DA Server show "Bad" using OPCLink connect to InTouch? How to develop OPC Client under environment of Microsoft. ![]() Why the NAPOPC DA Server show error value when I use Modbus Utility setting address number? What the tag limitation in each group when connects through Modbus protocol? Why does the COM port which greater than ten still can't connect normally? (The document notified the modification of this on version 2.15) ? ![]()
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