Request for Removal of UM Read/Write Protection – OMRON CP1L-L14DT1-D

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saral1577
Posts: 1
Joined: Sun Jan 11, 2026 10:24 am

Request for Removal of UM Read/Write Protection – OMRON CP1L-L14DT1-D

Post by saral1577 »

Hello,

The OMRON CP1L-L14DT1-D PLC device belonging to our company currently has UM (User Memory) read and write protection enabled. The device was used for training purposes only, and there is no actively used project stored inside the PLC.

Within the scope of training and testing activities, we would like to request your support for removing the UM protection in order to upload a new program to the PLC and perform read/write operations.

Thank you in advance for your support and guidance.
defo2004
Posts: 91
Joined: Wed Aug 05, 2015 5:33 am

Re: Request for Removal of UM Read/Write Protection – OMRON CP1L-L14DT1-D

Post by defo2004 »

saral1577 wrote: Sun Jan 11, 2026 10:33 am Hello,

The OMRON CP1L-L14DT1-D PLC device belonging to our company currently has UM (User Memory) read and write protection enabled. The device was used for training purposes only, and there is no actively used project stored inside the PLC.

Within the scope of training and testing activities, we would like to request your support for removing the UM protection in order to upload a new program to the PLC and perform read/write operations.

Thank you in advance for your support and guidance.
Hi! What level of protection is set in your PLC, look at the A99 register, what is the value there. (thnx)