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Showing results for tags 'opc'.
Found 6 results
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Hi, Has anyone gone down the road of evaluating or has experience implementing the OPC UA architecture? There are a couple of toolkits out there so thankfully there is no real need to tackle the OPC .NET API. At this point I'm trying to fetter the tech side of it. What were the unexpected roadblocks you ran into? If anyone can share their experiences it would be appreciated. Thanks!
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down vote favorite I have OPC server on CodeSys. I am trying to read variables using LabView. I have tried two options: using DataBinding to OPC Variables in controls using DataSocket Open, Read, Write, Close VI LabView returns no error. When I use data binding control it is green and the message is "Active: Connected to OPC server". Unfortunately when I force variables in CodeSys i see no changes in LabVi -
Hello all, I recently was presented with the task of integrating a Mitsubishi PLC into our systems. After a good deal of googling, I think the best (maybe only) way to get the data out is going to be via OPC, thanks to their proprietary Melsoft protocol. If anyone else knows a better way, feel free to stop me here. Now, we are currently expanding our data generating capabilities (hence the PLC), and I have been thinking about rearchitecting the way we collect data from all over our facility to be more flexible. Since I may be required to use OPC anyways, I was considering using an O
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Hello to all. First I explain my environment and then I will ask the question. PC 1 (development PC): intel i5, windows10 64bits, 8GB Ram, Labview 2015 SP1 (32 bits), Vision Adquisition Software 2015, Module Vision 2015, DSC 2015, ni OPC Server. PC 2 (deployment PC) : intel celeron 1.99 GHz, windows 7 64bits 8GB Ram, Labview 2015 SP1 (32 bits), VIsion Adquisition Software 2015, Module Vision 2015, DSC 2015, ni OPC Server, Run Time Engine 2015, VIsion Run Time 2015. PC 3 (deployment PC) intel Atom CPU N2600 1.40GHz, windows 7 64bits, 4GB Ram, Labview 2015 SP1 (32 bits), VIsi
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Hello, Could you please share your thoughts about problem shown below? Thanks in advance. Software used: LabVIEW 2013 f2, 32 bit DSC 2013 Problem: When trying to read a value of tag from third party OPC server which is not widespread software using NI DSC OPC client we got empty data. The type of tag in OPC server is Array of U16 and OPC server continuously writes array of values into that tag. However, NI DSC OPC client (and Distributed Systems Manager as well) defines type of that tag as String, thus can not read value of that tag (I suppose that NI OPC client is trying t
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Hello. The group I'm working for is trying to establish a way for different users to access and experiment with our OPC server. The server itself is a Rockwell Automation RSLinx Classic OEM, and we're trying to figure out how to restrict the access users can have with it. We'd like them to be able to read and write to the server, but not anything else. I'm new to labVIEW, so I was wondering if there might be anything available here to limit access to the OPC server? Thanks.
