RSLogix 500 warning

[Beryl 0]

Last week I found that a feature that has been embedded into RSLogix 500 for as long as I can remember was not working. As most anyone knows that has used RSLogix 500 the program in the PLC and the program file had to match to be able to go online with the PLC. (The offline and online checksum values had to match.) As I mentioned, last week I found that you could modify the offline file and still go online with out the normal warnings and having to upload the code from the PLC. I contacted Rockwell tech support and they were unable to tell me what the cause was. I informed them that the problem existed on all NT, 98 and W2K server systems. They recommended upgrading my version 6.0 RSLogix to the newest version V6.10.10. I did so on one of my PC’s and the problem did not go away. Tech support was able to duplicate the problem and found that in V6.0 this feature was broken. It sounds as though they are going to release a new version, V6.2 soon. In the mean time to make certain your offline files match the online file you must manually check that the checksums match. To do this open the file and then double click on the Controller Properties and make note of the "Program Checksum". Then go online with the PLC and verify that the online program checksum matches if it does not. You will need to upload the current program from the PLC or find the correct file. Again, this issue is found in any V6.0 or later release of RSLogix 500 standard or professional. Please keep this in mind, as it could be disastrous. Beryl

[Beryl 0]

FYI, Just downloaded and tried out V6.2 and it does not solve the verification problems. There is no mention of the problem in the release notes.

[Guest HalBishop]

We have seen the same thing in RsLogix5 as well. When you go back offline all of your edits reappear. Kinda scary.

[Skidog 0]

I observed this a few times myself, but wrote it off to long hours and no sleep. Good catch.

[Guest Alberto Matos]

My name is Alberto, I´m studing rslogix, I ned Rslogix500 program version 5.50 or 6.0 but I cannot buy it, could anyone get it for me? my email is ( semielet@hotmail.com )