Flex727
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Posts posted by Flex727
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Sure you can, but timers only have a resolution of 10ms. Just multiply your MI by 100 and use "Store Timer/Counter Preset" for the TD timer you wish to use. Make the timer self-resetting (timer activated by inverted contact of the timer) then have a positive transition of the timer activate a toggle coil of the MB you wish to use for the pulse train.
If this isn't clear, I'll post a screen capture of the logic - just let me know.
Remember, you must use increments of 10ms. You cannot have a 12ms timer.
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There are also example projects that come with your VisiLogic and UniLogic installations that may be of help.
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I'm not a distributor so I don't have any price information, but I think there's only one serial port add-on for the Vision and Samba lines, although there may be an isolated port variant as well.
As far as the M91 and the V120/V130, I believe the serial port is built in.
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The Samba 35 with a RS485 add-on should do the job inexpensively. The Vision 120 or 130 would also do the job for a few dollars less, but the Samba has a MUCH nicer display.
The M91 would probably be the least expensive solution from Unitronics, with a 2-line display and built-in 485 port, but uses the U90 Ladder software for programming which can be a bit more cumbersome than the outstanding VisiLogic programming software used for the Vision and Samba lines.
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You downloaded a blank project then downloaded your project again?
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1 hour ago, Gabriel Franco said:
I solved it updating OS, downloading an empty application and then downloading the application again.
This has worked for me in the past for similar problems and may be all you need to do.
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Touching a blank area of the screen of the PLC for 4-5 seconds. will take you into INFO mode. The default password is 1111.
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Unfortunately, I don't have a Samba available, so I downloaded the program into a V700. Everything showed up perfectly, so there is nothing wrong with your program. I suggest the following:
-Re-download the program fully. I would pull the power and the battery from the PLC for at least 20 min, then replace both and perform the download.
If still the same, then check the status of the firmware by pressing Ctrl-F9 and going to the 4th tab over and press the "Check" button. Upgrade the OS if it says to and repeat the above.
If still no improvement, contact your distributor or email support@unitronics.com.
I have seen this type of thing before (very rarely) and it was usually some glitch that never repeated once the program was re-downloaded.
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Sorry, that was shorthand for your .vlp file.
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You can find the IP address of the PLC in INFO mode. If you are going to communicate with the PLC via Ethernet, you need to set up Ethernet Configuration and assign an appropriate IP address in the ladder.
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FYI: I'm referring to the Filter Function Block that is independent of the Load Cell module.
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The "Discard Values" parameter does exactly that.
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There is a Filter function available to help smooth out this type of variation, but it seems to me that, fundamentally, filtering data necessarily causes delay. You may have to experiment and stop the filling just short of the required weight. You can also try filling more slowly as you approach the weight limit.
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You cannot have the same Direct Coil in two different ladder rungs. Only the second instance of the coil will control the output.
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10 hours ago, Joe Tauser said:
Take a look at the attached program.
@Joe Tauser, did you write that in the newest version of VisiLogic? I haven't installed it yet, but I was able to open the project in 9.8.31. Unfortunately, the wider ladder rungs did bad things - they try to go off screen and can't be accessed. Unitronics needs to prevent 9.8.64 projects from being opened in previous versions.
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On 7/14/2017 at 6:11 PM, Joe Tauser said:
THE LADDER NETWORKS ARE TWICE AS WIDE!!!
Great news, but twice as tall (or 50% taller) is what I need more. I have regular need for 12 contacts in parallel and constantly breaking them into two sets of six is a pain.
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It sounds like the project file (.vlp) was corrupted. Do you have a backup of that file?
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No, it is not possible. Why do you need to?
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Right click and do a "Save Link As".
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Assuming there is some reason for upgrading to 9.8.9, yes you can clone the V570 PLC to the SD card prior to the upgrade and then restore it to the original condition if you experience some problem. However, especially when you have an intricate project as you mention, I rarely do any upgrade of that nature because you're just asking for trouble. I always use Version Swapper on my laptop to return to the original version of VisiLogic and do any software changes from that. Others do it differently, but I believe if it ain't broke, don't fix it (in other words don't upgrade the firmware unless it's necessary for some reason).
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You can backup the program to the SD card without writing to flash memory. It's the restore from the SD that writes to the onboard flash. As Ausman said, what is your issue with the onboard flash memory?
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Are you sure you have V280 selected in the Hardware Configuration?
creating a pulse train with variable length
in Vision & Samba PLC + HMI Controllers & VisiLogic Software
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You coded that up and tested quickly! Glad it's working for you.