Im new learning PLC programming and I'm trying to connect to a PLC but It does not appear in the "Who active" window but if I look for the PLC in the RSLinx it appears in there, anybody can help me with this?
Im trying to go online to troubleshoot the PLC
In your RSLinx Classic screenshot, you are seeing the PLC using a driver named "AB_ETH-1_ERHWSC".
However, in your Studio5000 Who Active screenshot, the driver you are looking at is named "AB-ETHIP-1". In addition, Studio5000 is not currently using RSLinx Classic, but instead is using FactoryTalk Linx.
You can switch Studio5000 to use RSLinx Classic by going to the Communications menu and selecting "Select Communications Software..." After you do that, go into Who Active, find the "AB_ETH-1_ERHWSC" driver, and you should be able to see the PLC there.
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So recently I get this error "XHR failed" while trying to download extension and I already try a lot of things changing the setting but still it cant work. So I decided to try difference wifi (mySchool) and network(mobile data) and I'm shocked it's working fine. So, I guess the problem is on my own wifi. How to deal with it? I've been stuck for 2 days 🙂.
I use the latest VS CODE version on Windows 11.
I try a lot of things to fix it and been through github and stackoverflow too from `proxy setting,firewall,DNS,restart router,restart laptop also i tried everything in this question too and all but
"XHR failed"
keeps appear and as I said before without changing any setting but only changing wifi it works fine. So, I hope there's a solution on my wifi.
this is the error msgs on therminal:
enter image description here
Updates:
I'm running the same project at home and school.
I'm using the same laptop at home and school
By "mobile data", I mean hotspot from my cell service (vs. Wifi).
The projects ONLY works for wifi at school and from my hotspot.
It does NOT work from my home wifi.
It fails not only for remote explorer, but the other ones too.
I can't try to reload the extension that I want to download. The error always occurs, not only on Remote Explorer.
The other problem is "can't connect to discord via RPC: Error: could not connect"
Your problem is the same as discussed in this thread:
Visual Studio Code "Error while fetching extensions. XHR failed"
Unfortunately, there are several DIFFERENT possible root causes, and several different workarounds and solutions discussed in the thread.
You said you "tried several things". Please Update your post and specify exactly WHAT you tried, and the results.
You said it "works" on certain networks, but fails on your (home? school? other?) network (whether or not the network is "wifi" or not probably doesn't matter). Please clarify exactly "what's different" between the networks (to the best of your knowledge).
Please specify the platform you're running VSCode on (windows? MacOS? Linux? Other?)
Try this (one of the responses in the SO thread I cited above):
https://stackoverflow.com/a/71456820/421195
press f1
search "user setting"
click enter
search on user setting "proxy"
click enter
look for "use the proxy support for extensions."
change "override" to on
Q1: You're running the same version of VS Code, on Windows, using the same project, at home and at school, correct?
<= Q: Are you using the same PC (e.g. carrying a laptop from home to school), or are you using different PCs at home and at school?
Q2. By "Mobile data" (vs. "wifi"); you mean you "hotspot" for your cell phone service, correct?
Q3. The project ALWAYS works for Wifi (either at home or school), but NEVER works for your Hotspot, correct?
Q4. You're always trying to run the Remote Explorer extension in VS code when the error occurs (it never happens with other VSCode activities), correct?
<= Q: Any problems in other areas of VSCode (e.g. your compiler)?
Q5. The exact error message is The editor could not be opened due to an unexpected error: XHR failed, correct?
<= Q: Always using Remote Explorer, correct? What exactly are you doing in Remote Explorer?
BE SURE TO TRY ALL THE TROUBLESHOOTING TIPS HERE
(including verifying "ssh" from the VSCode command line, using your "bad" network):
https://code.visualstudio.com/docs/remote/ssh
I found the solution for my problems. it solved by using vpn.
the problem was my wifi provider probably blocking the request on vs code, seems like there's something fishy about the DNS policy. Hope this can help too
I want to install an interactive lab environment in which students can code within that environment. I want to use codeboard.io for the IDE part. But, I don't want students to access the Internet apart from codeboard.io. So, how can disable the Internet access except codeboard.io?
Thanks in advance...
There are different tools which help you lock down a system and limit what students can do in the browser. One software I remember and which was used at my university is Safe Exam Browser.
As far as I can tell it's free and open source.
I'm trying to enable the "Set RTS On Close" option. This is supposed to be located in:
Device manager -> Ports -> USB to Serial Comm Port -> Properties -> Port Settings -> Advanced
The "advanced" screen on mine however gives no such option. I have tried this on 3 PCs; two running Windows 7 and one on Windows 8. But they all display the same thing. See screenshot: http://tinypic.com/r/2uzt09f/8
There are also several other "Miscellaneous Options" that don't appear (but appear for other people). I suspect these options are controlled by the driver. The driver is "Prolific" and used for an Arduino chip. It installs automatically when the USB is plugged in. Perhaps if I could force it to use a different driver that might fix it but I don't know which one.
EDIT: Does no one else have this problem? The only other person I could find with this problem was in a forum posted here but he didn't really get any answers http://diydrones.com/forum/topics/stopped-on-unknown-problem
This option is available when you install the FTDI driver instead of the Prolific one. use this page http://www.ftdichip.com/Drivers/VCP.htm to find the suitable driver (not executable but rather the inf file)
I have been asked to provide a solution for a client of mine. They have asked me to build a presentation for a exhibition in a museum that can be updated. The presentation will essentially be galleries of images/videos with associated captions. This presentation computer will have a poor internet connection at best.
I see the best way forward for my client to update the presentation would be to have created a presentation on another computer. They need to do this remotely from exhibition and there will be no network connection between the CMS and presentation computer.
I need them to then be able to export the presentation file onto a USB stick that they could then take to the exhibition.
Once at the exhibition I would like them to be able to put the USB stick into the computer and then for it to automatically copy the information into a folder on the computer and also update a XML file.
What I'm wondering is what would be the best way to program this? I am pretty experienced Flash and PHP programmer and would normally get round allot of these problems by running it all on networked computers running stuff from servers. I know I could quite easily create a presentation system in flash that would load all the info from a folder but getting that folder from one computer to the other seamlessly is not something I'm familiar with. I really don't want the administrators of the system to have to manually copy a folder from one computer to another. It really needs to be click a button and it exports to USB and click a button and it imports from the USB. When it comes to creating programs that export files and copy folders to and from USB sticks I'm pretty lost!! Would this be something that needed done in C++ or something similar? Any advice would be great!
Many thanks for taking the time to read this!
Cheers,
Craig
I think there are several options for this but one that comes to mind is to install and run a complete stack with CMS, MySQL, webserver from a bootable USB drive/stick.
Also check http://portableapps.com/
http://bitnami.org/ may also have something for you.
Another option is to use a CMS that can export and import its content easily.
e.g. hhttp://share.ez.no/download-develop/downloads/
allows users to create content and that content ( or any section of it ) can be exported as zipped package for import into another instance of the CMS. Usually takes less than a minute each way ( unless the export is very large ). The CMS would be installed at both locations running on the local machine. They don't need to be both running the same OS stack.
Anyone know any softwares that can simulate human interaction on desktop browser specifically by clicking or entering some data and run some report and print automatically obviously with some programming behind this. Main, it will be used for reducing business process steps on human interaction day to day activity (possibly testing purpose in the future).
I am appreciated your comment or input.
Thanks
I tried a few different automation tools myself when trying to automate desktop software, one is AutoIt which is one of the most complete in my opinion. It helps to automate small tasks, ie: select a window and press a button to do the rest. It even has a macro recorder to get you started.
Telerik WebUI Test Studio
Watir
Selenium
...to name a few
To keep up with the namedropping, here's 2 APIs for Java:
Robot
Abbot (Built on top Robot)