Posted 14 Aug 2021 Dear Forum, Recently, i needed to upload the PLC program and the configuration from an OMRON PLC CQM1H-CPU61. I used the program CX Programmer V9.5. My PLC is shown bellow: In the connection instructions i found that i can connect to the RS232 port and communicate with the PLC directly (Method D Shown Bellow). Do i need specific cables? If yes, please refer them. I tried with the Prolific RS232 to USB Adapter , but with no results. Thank you in advance. Argyrios 1 person likes this Share this post Link to post Share on other sites
Posted 16 Aug 2021 This is the same cable as your other post: https://forums.mrplc.com/index.php?/topic/40710-help-for-cx-programmer-connection-to-a-c200h-cpu21-plc/ This one would be the 9 pin to 9 pin on page 1. Share this post Link to post Share on other sites
Posted 16 Aug 2021 (edited) Thank you for your answer! I will create my own cable depending on this pdf! Can i use CX - Programmer for uploading the configuration of the CPU? I go online like the picture bellow? Do i need to configure any communication settings? Thanks, Argyrios! Edited 16 Aug 2021 by iakostav Bad picture Share this post Link to post Share on other sites
Posted 17 Aug 2021 Using Direct Online, the computer will work through the different comm settings until it connects. You should not need to configure the settings. gtsuport Share this post Link to post Share on other sites
