MicroLogix

[blueice 0]

Hello. We have an older machine that has two MicroLogix PLC'S in it. I tried to upload the image just to make a back_up of each one. RsLinx finds each one but RlLogix is returning an upload failed--compiler error. Could these plc's have been programed with something other than RsLogix? I have a paper printout of the program and it looks simular to the old PCIS that was used for the SLC100 and 150. Any help is appreciated. Thanks Paul

[Ken Roach 194]

There was an AI-series programming package for the very early MicroLogix controllers... probably about 10 years ago. I have heard of this decompiler error, because that package allowed some constructs that RSLogix 500 doesn't. The solution is to use AI-Micro, or to get an upload utility derived from AI-Micro. A-B Technical Support will provide that utility for free. Once the program is uploaded, it should be able to be opened in RSLogix 500. I think that the "illegal" ladder constructs should adapt to the RSLogix 500 rules then.

[Snerkel 0]

Also if I remember rightly the newer C versions when new are A versions to allow older software to access them, however if a later version of RSlogix is connected to them they automatically become C versions that older software can't access. (I may be wrong in some of the finer detail but you get the gist )

[mgvol 0]

The upload utility can be found in the Rockwell Technical Support page Knowledgebase, Technote # E9855783. http://domino.automation.rockwell.com/appl...84?OpenDocument

[Guest Luis Anguis]

I can not use this upload utility because my processor is faulted. Is there any other utilities I can use to clear a fault error? Thanks.