small7 Posted March 6, 2015 Author Report Share Posted March 6, 2015 Hello At the end of January i changed program in PLC (I have few lines in one Net - last ldr error). It seemed that it will be ok (earlier plc work about 2 weeks now it's work 7 weeks), but today PLC stop and i have new error code. This Ldr error code follow to What is wrong in this nets? Link to comment Share on other sites More sharing options...
Alexander Posted March 6, 2015 Report Share Posted March 6, 2015 The Ldr code will direct you to the subroutine that is causing the issues. If possible please send the project along with as many details as possible to support@unitronics.com for further review. Link to comment Share on other sites More sharing options...
small7 Posted March 11, 2015 Author Report Share Posted March 11, 2015 The Ldr code will direct you to the subroutine that is causing the issues. If possible please send the project along with as many details as possible to support@unitronics.com for further review. ldr error direct to nets in image 2. Link to comment Share on other sites More sharing options...
Alexander Posted March 16, 2015 Report Share Posted March 16, 2015 There does not appear to be anything wrong with the code in the image that you posted. Has this issue occurred again? If the issue is repeatable please send your program in for further review to support@unitronics.com If we are able to replicate this issue consistently we may be able to determine the issue that caused it. Often this type of error occurs when a very specific sequence of events occurs within the PLC. Please let us know the exact conditions of any I/O or settings within the controller that led up to this error being displayed. Link to comment Share on other sites More sharing options...
Ramzan Posted March 25, 2018 Report Share Posted March 25, 2018 Help me guys to operate V350-35-R2 Link to comment Share on other sites More sharing options...
MVP 2023 Flex727 Posted March 25, 2018 MVP 2023 Report Share Posted March 25, 2018 "No Application" means there is no software in the PLC for it to run. Was the battery removed? If not, it may have failed. How old is the PLC? The battery typically lasts about 10 years. You will need to find the original .vlp file or a file that was saved to an SD card. Link to comment Share on other sites More sharing options...
Ramzan Posted March 25, 2018 Report Share Posted March 25, 2018 1 hour ago, Flex727 said: "No Application" means there is no software in the PLC for it to run. Was the battery removed? If not, it may have failed. How old is the PLC? The battery typically lasts about 10 years. You will need to find the original .vlp file or a file that was saved to an SD card. Thanks for the reply What i should do now ..sir? Where i can find vlp file. I have nothing here ... Ramzan63@gmail.com Link to comment Share on other sites More sharing options...
MVP 2023 Joe Tauser Posted March 25, 2018 MVP 2023 Report Share Posted March 25, 2018 The .vlp file is created by Visilogic software and is the PLC program. If you are not the original creator of the program you will need to get a copy of it. Visilogic can be downloaded from this website and you can load the .vlp file into the PLC with it. If you do not have or can not get the .vlp file then you are dead in the water. Joe T. Link to comment Share on other sites More sharing options...
CHERIAN Posted April 16, 2020 Report Share Posted April 16, 2020 Hi, I used PLC V280-18-B20, OS 3.75 After update os to v5.02 PLC stop mode screen displayed and not running.please help me solve this issue and revert back to install previous os. Link to comment Share on other sites More sharing options...
AlexUT Posted April 16, 2020 Report Share Posted April 16, 2020 Do not make OS and any other update to old PLC hardware. You have to use the same VisiLogic version you used last time. Roll-back to OS 3.75 and to old VisiLogic. Hope PLC will work. B.R. Link to comment Share on other sites More sharing options...
CHERIAN Posted April 17, 2020 Report Share Posted April 17, 2020 15 hours ago, AlexUT said: Do not make OS and any other update to old PLC hardware. You have to use the same VisiLogic version you used last time. Roll-back to OS 3.75 and to old VisiLogic. Hope PLC will work. B.R. Hi, Thank you for the reply I checked in website only VisiLogic v7.1 available .I tried but I cant able to roll back .please help me to revert back os to 3.7. Thanks cherian Link to comment Share on other sites More sharing options...
AlexUT Posted April 17, 2020 Report Share Posted April 17, 2020 Please send your request to support@unitronics.com Add PLC serial number and exact model number to your request. B.R. Link to comment Share on other sites More sharing options...
CHERIAN Posted April 17, 2020 Report Share Posted April 17, 2020 15 minutes ago, AlexUT said: Please send your request to support@unitronics.com Add PLC serial number and exact model number to your request. B.R. Hi Thank you for the update I already registered ticket and now I sent the mail to the support. thanks ckc Link to comment Share on other sites More sharing options...
MVP 2023 Joe Tauser Posted April 17, 2020 MVP 2023 Report Share Posted April 17, 2020 Also - the next time you have questions please start a new thread. This one is five years old. Joe T. Link to comment Share on other sites More sharing options...
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