[PLC to PLC with 2 wifi routers]

I also believe it will work.   One router will have to be able to be changed from router to bridge mode.  I would also use static ip’s on everything.  

[Analog filter]

On 8/20/2018 at 11:35 PM, Joe Tauser said:

If it is really bad I've been known to hang an electrolytic capacitor between the analog input and 0V.  I'm not kidding.  Something like 10 uF @ 25V.

Joe T.

Seriously, Try what Joe said. I was taught that by someone else. It can save you hours of pulling out your hair.

[Visilogic 9.8.65]

I have ran into this problem. It was the USB to Serial converter. Have you tried plugging the USB directly into the mini-b on the v700? also try knocking down your baud rate down and see if that works.

[An invitation to suggest ideas for new UDFB's]

On 7/22/2015 at 7:52 AM, Gugulanov said:

Hello,

The trend widget is very useful, combined with sampling of real time changing data.

However, I really miss the feature in Visilogic, to draw  trend based on vectors or array of variables. In other words, in Unilogic I can't show graphically (xy curve of columns) a data table for instance.

Is there a possibility, such feature to be implemented?

 

Regards,

Gugulanov

I second his above request

[Contador]

mira tu configuración

Cuáles son los suyos
siempre ML no MI

settings.bmp

[USB direct to PLC. Problem & Fix]

18 hours ago, Ausman said:

Hey Visco, isn't this what sharks love to do whilst cruising their coastlines, looking for "diver software"?...... Those lovely yummy things that also are a little bit crunchy on the inside!  Yum yum.  ??

cheers,

Aus

LMAO! I did not catch that. It's not a bad reference since with every Microsoft update; you do not know if it will sink or swim.

 

[USB direct to PLC. Problem & Fix]

With the new windows 10 update that rolled out; it breaks the USB to UART Bridge drivers.

If this happens, confirm that you have a yellow exclamation point in the device manager indicating that there is a driver issue.  If so, disconnect the PLC/USB cord from your PC, download the newest CP210x drivers from  Silicon Labs https://www.silabs.com/community/interface/knowledge-base.entry.html/2016/12/30/downloading_cp210xd-ek07. Unzip the new driver, right click on the yekkow exclmation point | select update driver |  Browse my computer for diver software | navigate to path of unzipped driver folder   | then "next" your way through the install.

NOTE: This is not for the USB to SERIAL. This is only for USB direct to the PLC.

[How can I steadily and automatically reduce analog output?]

I have similar applications. Here is how I handle them. First off depending on the drive you are using, I program one of the outputs on the drive to  ZERO SPEED and not allow it to change until it is at zero, secondly you can add a TD and give it a few seconds before it starts . As for the ramp down, I would program the ramp down in the drive. It's much easier and you have more control that way.

 

As Ausman said E-Stops!! never forget

[2 instances of Visilogic running]

Hey Aus, THANK YOU! thats not the most ideal way, but is is a way and I'll take it. Ihave a PLC on my desk I test with, then want to transfer snippets to the actual program (as many do).

@Cara Bereck Levy Hopefully our bestest,  most awesome, favorite, and elegant moderator reads this and puts in a feature request for us.  It would be nice to have tabs of open programs then it would be in the same running application that would allow us to copy and paste. Cara, did I mention that you are our favorite?  

[2 instances of Visilogic running]

Is there a way of have two instances of the visilogic application running so you can copy and past from one to the other? 

[Upload Download the Unitronics way.]

I would like to see them reversed to the proper way, but Unitronics is like a pretty girl, you learn a minor blemish does not make her any less pretty, or in this case any less useful.

[anti sin math function.]

I over complicated this entire thing. So for anyone else trying to get degrees from the hypotenuse and the opposite side this is how I did it. The first subtraction block was done to bring my vertex to 0

[anti sin math function.]

10 minutes ago, Joe Tauser said:

Use the floating point math to implement a Taylor series-

I'd run the equation a few times in a spreadsheet to see how far n has to increment to get the accuracy you're looking for.

Joe T.

Thanks Joe. That will return radians? I can use the degrees function to go back?

[anti sin math function.]

Is there a way I can do aSIN^-1

[HSO or not HSO, that is the question]

Thanks guys, 1.25ms should be fine. The max frequency will be 5. I will be using a laser fork sensor and the counts will be on a rotating disk with five 8mm slots in it. it turns at 60 RPM or 1 rev a sec.

Thanks again,

[HSO or not HSO, that is the question]

Easy question, I need a lot of counters in one app. The frequency will be 4-6 counts/sec. Can I get away with just using a PNP input on this? 

Thanks

[Addition To Visilogic Software]

@Cara Bereck Levy Thanks! That is pretty cool. 

[Easier way to have multiple calls to a coil]

@kratmel  Absolutely, this weekend I came in and used one of the dry contacts on the drive to fire the relay for the brake. Again, one of those simple things that I did not think of. Thanks for the tip! 

[Easier way to have multiple calls to a coil]

Thanks Ausman.

I will take any advise I can get, and I must say; you have a good memory. I do deal mostly with tank farms. This is a whole different application. This one is a foam saw that we pulled out all the old antiquated batch controllers and started from scratch with a PLC. How the measurement works is the motor with the brake runs the saw head down and rotating an encoder. When the counts/measurement reaches the set point the motor stops and the brake stops the head.  This was truly a definition of what you called "Zero Mechanical Sympathy"  ( a term I  like and now committed to memory) .  How I improved on that is; I replaced the reversing cross the line starters with a freq drive. As the head reaches 10%  its target point I ramp the drive down from 60 Hz to 20 Hz then at the target point stop the drive and apply the brake. This increased accuracy to within 0.015 mm and gave the brake some sympathy it deserved. As for the code that you saw, that was manual control from the joystick. The only time it gets used is in an emergency that a blade brakes or something that you have to move the head out of the way or rotate the table. 

If you're interested, I can post some pictures of this enormous saw. It boasts a 30' (9m) diameter rotating table, can cut material up 118" (3m) wide and 60" 1.5m high.

I sincerely appreciate all your help. I would never have got this far on my projects without people like you to help.

I do not know what country your in, (assuming Australia) so I used both imperial and metric units in my response. We are in the US but our company is 90% metric.

Thanks again,

 

 

 

[Addition To Visilogic Software]

I am hoping that @Cara Bereck Levy Sees this post and shows it to the Lord High Commissioners of Visilogic coders. 

Shes my favorite because we both grew up raising cattle; although hers were holsteins for milking and they're way too much work. We have Whiteface Hereford  (beef cattle), they're a lot less maintenance.  Oops, did I go off subject of this post?

[Easier way to have multiple calls to a coil]

Absolutely, much better! Thank you Ausman!

[Easier way to have multiple calls to a coil]

Hi Ausman, I don't follow you. Would you mind elaborating on "direct action?"

Thanks,

Paul

 

[Easier way to have multiple calls to a coil]

I understand not being able to use a coil more than once, but there has to be an easier way to do it than the way I did it in the attached image.  Thanks all

[Addition To Visilogic Software]

This may sound insignificant, but I want to be able to be able to add color to the comments to make it easier to see when scanning down through longer programs.

You can color the side bar of the rungs but not the comments.

Thanks Visilogic Team!

Paul

[Run Time Errors]

Yea Joe, that was the kicker.  A USB to serial converter worked fine. It was me starting with the USB cable  that did not work.  I wasted hours trying to make that work.  Just happy I can get this machine done.