Jump to content

Please Help. V570 can't connect

Recommended Posts

Hello Nick,


Is the battery backup installed in the V570? If the unit is powered down and the battery is low, or not installed than it is possible to lose the program and display no application. You will need to re-download the program.


We recommend performing the Download All and Burn download option. This will download the program into the flash memory of the controller which will retain the program in case the battery backup fails when power is cycled.

Link to comment
Share on other sites



Usually when the PLC is in stop mode the default baud rate is 115200.

Try to set in VisiLogic communication & OS menu the baud rate to 115200 and then try to download application.

if you are still unable to connect - let me know what error message do you get?

Link to comment
Share on other sites

Sorry I'm new to the forum and I'm not sure how to add pictures?


the plc reads.


V290/V570 (T40B)

O.S. (Stop Mode)

003.004.16 Aug 24 2011


Com1 Settings: 11520,8,NP,1,Nn

Com2 Settings: 11520,8,Np,1,Nn


Status : Idle


the computer errors are.


Communication    1/2/2016 2:40:24 PM    Close port
Communication    1/2/2016 2:25:21 PM    "Open port 12 115200,N,8,1"
Communication    1/2/2016 2:25:21 PM    Unable to Synchronize  - PLC Communication Parameters cannot be set
Communication    1/2/2016 2:25:19 PM    "Open port 12 9600,N,8,1"
Communication    1/2/2016 2:25:17 PM    Send break signal
Communication    1/2/2016 2:25:16 PM    "Open port 12 115200,N,8,1"
Communication    1/2/2016 2:25:15 PM    Close port
Communication    1/2/2016 2:25:15 PM    "Open port 12 115200,N,8,1"


again was able to connect to the plc before this happened.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...