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Flex727 last won the day on March 2

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  1. You have 4 sockets available and you can initialize them to any of the available protocols. Simply initialize two of them to TCP Master, set up the port numbers correctly to match the slaves, and configure MODBUS for each. Be sure to check out the example projects for the recommended method to connect and transfer data and you should be good to go. You only need to multiplex if you require more than 4 Ethernet connections.
  2. Yes, my understanding of how the database number matches up with firmware version is likely incomplete. I haven't been able to obtain or create a table of firmware vs. VisiLogic version, but I think that would be useful. Regarding not being able to open your 9.8.31 saved program in 9.8.9, this is true but be aware that VisiLogic saves a backup of the original file when it opens the file in the newer version. You'll find it with the file extension changed from .vlp to the database number.
  3. VisiLogic 9.8.65 has the ability to zoom in on any PLC screen, even the V1210.
  4. That's usually where I place my bet.
  5. Check out the example projects for the recommended way to execute MODBUS commands.
  6. Reset means re-boot and is equivalent to a power cycle. Re-initialize means reset plus erase all memory operands. Either can be performed from the PLC INFO Mode or from the VisiLogic Connection menu item. It's usually a good idea to re-initialize prior to (or immediately after) downloading a new program for the first time.
  7. Those questions were important. A third question: is your ladder in a subroutine? If so, is the subroutine being called in the Main Routine? If the answers are all "yes", then post your .vlp file here for additional help.
  8. @Marko, did you try having VisiLogic re-install the USB driver? Also, try using a different USB cable. Any USB-to-mini-USB will work.
  9. I just tried it again in 9.8.65 and realize now that I failed to select COM 2 in the INIT block. COM 1 can only select RS232, COMs 2 & 3 can select either.
  10. Are you 100% sure power flow is passing through the compare block, MB 10, & MB 12? Is your MODBUS block actually writing to the slave? I use the V700 frequently. There is no issue with the Store Direct function that I've seen.
  11. Unfortunately, no.
  12. With all display issues I make sure the firmware on the PLC is up to date, then download a BLANK project, re-initialize, then download my working project. If you still have a problem, you will need to contact your distributor or Unitronics for any other available remedy.
  13. @swb311, the V700 PLC has a different ethernet module than the other Vision PLCs. Because of that, some of the system operands are not valid. Instead, there are ladder functions available to replace those system operands. As Simon mentioned, this all very well documented in the Help file.
  14. Have you checked out the example projects that come with your VisiLogic installation? Look for the file called "V700_Modbus_TCP_master.vlp".
  15. I checked this out in 9.8.65 and the problem seems real and still exists in this newest version.