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A visit to any site or page from our web site via these links is done entirely at your own risk. provides links to third party sites only as a convenience and the inclusion of such links on our site does not imply 's endorsement of either the site, the organization operating such site, or any products or services of that organization. Note: We try to keep all external and related links up-to-date, however we are not responsible for the content of any site linked, further links on sites linked, or any changes or updates to the the information found on these sites. Online status of AR99 (Relative to read / write protection)ĪR99.02=1: Overwriting prohibited (write-protected)ĪR99.File types | Find file converter | Software | Articles | FAQs | Privacy policy | About us | RSS Please enlighten me on the matter or guide me how to remedy this problem. I also doubt that maybe it was I who did not know how to reset the PLC for my own use (Despite my research on the specialized Forums). I understand of course that we have the right to protect a program against reading or modification, but here to condemn the PLC that we bought and to prohibit the reuse of hardware is something that seems unfair to me! The program memory may be protected in read mode with prohibition of erasure. The following message appears on CX Programmer on each attempt: To my surprise, I see that I cannot download my program because of the write protection (by checking of course that the DIP SWITCH n˚1 is OFF)

I recently had to buy a batch of new electrical components containingġ0 PLC Omron Type (CP1H-X40DRA) Apparently stored in store (to be used as spare parts).Īnd when we check them, I see that they are in perfect condition and that they are already programmed for the applications for which they are intended, which did not interest me since I intended to use them for my own applications.
