Flex727

When downloading the project, you have the option of "burning" the project into flash (nonvolatile) memory. This would prevent the program from being lost if the battery is flat when power is removed. You also have an additional option of burning the "upload project". This allows the project to be uploaded from the PLC to VisiLogic. There is plenty of information about this in the Help file.

Good info, Fernando! Thanks for taking the time and trouble to document this properly.

Generally yes. The restrictions are (off the top of my head) you can't convert directly between color and monochrome HMIs, Vision & Enhanced Vision products, or Samba and anything else. Since the V430 and V560 are both color HMI and Enhanced Vision, you should be good. However, you will have to convert all your I/O addressing, but that isn't difficult - just do "Replace Operand". You will have a problem with screen resolution, however. You will need to move or convert your graphics to fit on a 320x240 pixel screen. Your V430 has a 480x272 pixel screen. It will let you convert, but every screen element beyond 320x240 will be deleted when moving from V430 to V560. Just do all your HMI work before converting in the Hardware Config.

In my experience, the wired Ethernet and WiFi Ethernet on a PC default to different subnets. Have you inspected both addresses to confirm they're on the same subnet? Easiest to enter IPCONFIG in a Command window.

There's another option - that I haven't personally tried, but should work - is to create a CLONE file on an SD card using VisiLogic and the correct firmware associated with that version of VisiLogic. Then load the clone on the PLC via INFO Mode. The PLC should then have the latest firmware and the program loaded. Of course, the OP has never volunteered the PLC model, so it may not have an SD card slot.

Of course - that's what a SCADA does. I have several customers that use SCADA to collect data from PLCs that I have programmed. It works very reliably. Be sure you have reasonable values set as Power-Ups for SI 101 - 106, as applicable. SI 103-106 should help with this. This allows the connection to drop after the specified time period (note the the time units are 100ms). I usually put in 10 or 20 for this.

Unitronics Support is in Boston, MA, in the U.S. and this is Thanksgiving week. You may not get a response until Monday.

Thanks, Joe.

Sounds like you need a PID loop. There are examples that came with your VisiLogic installation.

Moved to VisiLogic forum.

Did you try this? It should work fine.

Thank you both.

Can someone verify for me that the frequency measurement performed by a V200-18-E1B HSC reads out directly in Hz, with no implied decimal, such as obtained from a thermocouple?

To me, this is the one feature above all others that I most want to see implemented in VisiLogic. The ability to have two projects open side-by-side and copy & paste between them would save me a ton of time.

Because in your example you are using the Windows Clipboard that is built into Windows. It understands text and some graphics files, but nothing else. To copy ladder functions would require an application-specific memory space shared between two instances of VisiLogic. However, each instance of VisiLogic runs in its own memory space and the operating system prevents the sharing of information. You can copy ladder functions by copying them in one project file, closing that file and opening another then pasting.

It looks like Excel will do this for you: https://www.extendoffice.com/documents/excel/5229-excel-comma-to-decimal-point.html

Review this pinned post:

Moved to the Vision forum.

Are you sure that's not a V120-22-R1?

It is very much possible. A little information about what data you want to collect would be helpful.

Nice catch, @kratmel!

I guarantee you this is not the case. Test it with constants and you will see. This is your answer in all likelihood. Place an INC function after the compare to get additional data for troubleshooting.

https://www.unitronicsplc.com/Download/SoftwareHelp/VisiLogic_Knowledgebase/URB/URB_Remote_I_O_(UniStream_Remote_I_O).htm

Here is the relevant section from the installation guide:

Your math doesn't look correct. If you have 5.5 pulses per second, then that is 1.375 liters per second, which is 4950 liters per hour. You should be multiplying by 0.25, not dividing by 0.25, then that result is liters per second, not liters per minute.