Flex727
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Posts posted by Flex727
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47 minutes ago, Jeff164 said:
The state Machine concept you showed me a couple years ago has simplified allot of what I'm doing
+1 on this. After learning the State Machine concept from Joe several years ago, I find that it is incredibly useful and simplifies many very complex programming tasks.
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Glad this is solved. I'll just place a reminder here to avoid conditional subroutine calls. This is poor programming practice when it can be avoided - and it nearly always can be avoided.
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Are you able to PING the address from a Command prompt? Also, did you confirm the address of the PLC in UniApps?
And, are you using a crossover cable or Ethernet hub?
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You just need a self-resetting timer, thus:
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A neurologist was diagnosing a patient who lost his ability to do basic math.
"What’s 9 plus 9? 12. What’s 8 and 8? 10. The doctor shook his head. Very interesting. What about 6 times 5? The man thought for a second, and answered 1E. Aha, I’ve figured it out! The doctor said, "Somebody’s clearly put a hex on you".
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Every time I download a project into a PLC, and sometimes when I open a project file, I get this error message:
I can just click OK and everything proceeds normally, but what is this telling me?
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All operands are retained through power cycle (if the battery is good). If you want them reset to a specific value, then check the little box with the power plug symbol. In your case, uncheck that box and your value for MI 6 will be retained and not reset to -600.
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I usually have a zillion windows and applications open that I am working on simultaneously, all set up the way I like, so rebooting the computer is always a last resort. I finally gave in an closed everything down and rebooted. Happily, that fixed the problem. Sure is a weird problem though and it would be nice to understand the cause.
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I opened an older project file this morning and it opened with none of the contact or coil symbols visible. Since then, all my project files look like this. I've tried opening files in other VisiLogic versions (using Version Swapper) and everything now looks like this. Anyone ever seen this? Anyone have an idea of what the cause or fix might be?
I am using Windows 10 on a high-resolution monitor. I've tried changing display resolution and font size, but no improvement.
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Terminals 7 & 8 are Analog Input 1, not Analog Input 0. Just move your wire connections over to 5 & 6.
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12 hours ago, Gabriel Franco said:
I use Function In Progress as a condition to SCAN block.
That is correct. Use SB 41 to SET a bit. Then use a Direct Contact of that bit, followed by an Inverted Contact of the Function in Progress bit, then your communications, then a RESET of the first bit, similar to below:
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Also, I'm not sure MB 1 is necessary (all the configuration and initialization will take place immediately before the program executes the next rung). What you might need is for SB 41 to SET a bit and use that bit (direct contact) to initiate your communication, with a RESET of the bit at the end.
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On 11/9/2021 at 1:01 AM, vasovas said:
like shown on the screenshot attached.
It is a problem, because it reset counters and I get wrong data collected.
Any suggestions?
Regards,
Taking a second look at this makes me wonder if you're not misinterpreting this. MB 0 shows to be on, but it does NOT show power flow to ML 0 and the others. Actually, it shows that ML 0 and ML 1 are NOT at zero and are NOT Reset.
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That looks like a Windows issue with folder permissions. Try moving the folder to a different location and make sure there are no read restrictions.
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I just started using version 9.8.81 and notice the following two issues:
1) When opening a project saved with 9.8.80, there is no notice that you are opening a project from an older version. However, when going to download the project to a PLC, it is required to upgrade the PLC firmware. If upgrading the project requires upgrading the PLC firmware, the programmer should definitely get a notice to this effect.
2) When downloading a project to a PLC, ANY change results in this message:
I am used to seeing this if there are dramatic changes or if downloading to a different PLC, but not every single download regardless of how small the change.
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It should be no different than your personal computer. It (normally) only has a single ethernet (or wifi) port and a single IP address, yet can communicate with other devices on your internal network and communicate with the internet. As with any device communicating with the internet, you are going to need a modem, or other device, that has internet connectivity through an internet service provider.
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27 minutes ago, Cordell Musser said:
I'm still learning things every day about Unitronics so every tidbit of info is valuable to me!
Aren't we all. 😉
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39 minutes ago, Cordell Musser said:
Even with putting SI 101 at a 10 power up value, I still have issues with getting the (210) error message.
But is it improved? That has been my experience. I haven't been able to get WAN connections to be as stable as LAN connections, especially with downloads across the Pacific, but it's tolerable. If you find other improvements, I would like to know of them also.
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By the way, there is an entire section in the Help file on minimizing EMI. It appears to be quite comprehensive and worthy of study for application to your problem. Take a look and see if it helps.
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40 minutes ago, TriSeal27012 said:
Still can't Direct Connect
You're trying to Direct Connect using Ethernet through port 20256? If so, Socket 0 needs to initialized as Server (slave) instead of Client (master).
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7 hours ago, vasovas said:
Any suggestions?
Regards,
Try adding a Reset of MB 0 to the ladder rung above - just place it immediately below MB 6.
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Less than compare function not powering coil
in Vision & Samba PLC + HMI Controllers & VisiLogic Software
Posted
Actually this does not tell you as much as you think. If it's a conditional subroutine call and the subroutine stops being called, the coil will remain on. This is only one of the reasons to never perform conditional subroutine calls.