First post, Search engine found this forum, Nice to see it!.
It would be nice to contribute, rather than start with a question, but the real world is what brought me here.
let me impose on any who may offer advice or wisdom;-)
I have a vacuum process machine that was in storage for some time. Now I work to recommission the tool.
Fitted with a Fanuc 90/30 311 PLC and a KEP MMI200 key panel to control the pumping sequence and the process parameters, "something" dropped out during storage. That is, the control functions worked fine when put away, but now? NO!. Some strange magnetic anomalies must have jiggled a few electrons loose.
I have the correct software for both devices, and successfully communicate with both as well. I have pulled the logic from the 90/30 and print it to file, but the MMI program is a blank. (Strange for an EPROM)
I am at some disadvantage in that there is no mention of the MMI 200 program in the tool documentation, and the documented ladder logic is not quite a match to the data contained in the PLC . (Well, quite a bit different really ;-) Similar enough to extract most references and apply nicknames and descriptions. Only About 165 references divided between %I, %M, and %R
My trouble is innocence ;-) I just don't seem to grok the HMI programming that would include key functions, whether set or toggle, nor the use of reference bits to control the LED annunciators.
The KEP "manual" speaks of "register +1, register+2 and register+3" as the locations for the LED functions, but that is just going over my head. From the ladder listing, LEDs are referenced between %M0505 and %M0528.
I don't see a way to assign references to only the LEDs in the KEP software.
Can anyone offer guidance on programming the MMI based on back engineering the ladder logic?
All comments appreciated
Cal
It would be nice to contribute, rather than start with a question, but the real world is what brought me here.
let me impose on any who may offer advice or wisdom;-)
I have a vacuum process machine that was in storage for some time. Now I work to recommission the tool.
Fitted with a Fanuc 90/30 311 PLC and a KEP MMI200 key panel to control the pumping sequence and the process parameters, "something" dropped out during storage. That is, the control functions worked fine when put away, but now? NO!. Some strange magnetic anomalies must have jiggled a few electrons loose.
I have the correct software for both devices, and successfully communicate with both as well. I have pulled the logic from the 90/30 and print it to file, but the MMI program is a blank. (Strange for an EPROM)
I am at some disadvantage in that there is no mention of the MMI 200 program in the tool documentation, and the documented ladder logic is not quite a match to the data contained in the PLC . (Well, quite a bit different really ;-) Similar enough to extract most references and apply nicknames and descriptions. Only About 165 references divided between %I, %M, and %R
My trouble is innocence ;-) I just don't seem to grok the HMI programming that would include key functions, whether set or toggle, nor the use of reference bits to control the LED annunciators.
The KEP "manual" speaks of "register +1, register+2 and register+3" as the locations for the LED functions, but that is just going over my head. From the ladder listing, LEDs are referenced between %M0505 and %M0528.
I don't see a way to assign references to only the LEDs in the KEP software.
Can anyone offer guidance on programming the MMI based on back engineering the ladder logic?
All comments appreciated
Cal