Problem regarding connecting Delta DVP-14SS2 PLC to PC via COM port

[khatus]

I’m working with a Delta DVP-14SS2 PLC and facing an issue. My PLC is not recognizing the PLC(i.r Delta DVP-14SS2) when trying to connect via Delta’s programming software, WPLSoft. Although the software recognizes the COM port. The error shown in the image below appears during the connection attempt.

Please note that I’m not using the original Delta programming cable. Instead, I’m using a cheaper third-party cable. I’ve also attached a picture of the cable I’m using.


[url=https://ibb.co/F402Yqwr][img]https://i.ibb.co/WvPZzpyh/20250505-235524.jpg[/img][/url]

Here is my Connection.I have connected +,-,E pin of the  PLC  to +24,Gnd, Earth pin of 24V SMPS
 

[url=https://ibb.co/wrg5cgqq][img]https://i.ibb.co/k6BNmBTT/20250505-235720.jpg[/img][/url]
 

Edited May 6 by khatus
Photo

[IvanBratanov]

This is what you should concider using in such cases. Its named uc-prg020-12a. You can get it from the nearest Delta supplier or from the Internet.

  I've been thru this before I provided myslef a copy of this Delta original USBtoRS-232 adapter. I doubt that the problem is with the PLC.

 

 

Edited May 7 by IvanBratanov