RSL
Member
I recently had a problem with a system that is several years old. It has grown a LOT in the last couple of years. I needed to get Data from a PM3000 power monitor on EtherNet, so I configured a message. It failed again and again.
I researched the error and eventually found I was out of "unconnected buffers". I have read all there is to read on the Rockwell site. I still only have really vague grasp of what an unconnected buffer is. anyway....
I discovered that the processors default number of buffers is 10. I could see by using the task monitor that my high water for them was in fact 10. I wrote a message and changed the max to 20. My high water imediately went to 12. I can see I was stacking up a bit I guess? Anyway, my problem was solved. My new message now executes just as it should.
My questions are, Will the processor retain this new max number of unconnected buffers after a power cycle? I did an upload and saved afterwards too. Will the processor retain my new value if I do a download? I set my message that changes the max number of buffers to execute on first pass just in case. Was this necessary?
RSL
I researched the error and eventually found I was out of "unconnected buffers". I have read all there is to read on the Rockwell site. I still only have really vague grasp of what an unconnected buffer is. anyway....
I discovered that the processors default number of buffers is 10. I could see by using the task monitor that my high water for them was in fact 10. I wrote a message and changed the max to 20. My high water imediately went to 12. I can see I was stacking up a bit I guess? Anyway, my problem was solved. My new message now executes just as it should.
My questions are, Will the processor retain this new max number of unconnected buffers after a power cycle? I did an upload and saved afterwards too. Will the processor retain my new value if I do a download? I set my message that changes the max number of buffers to execute on first pass just in case. Was this necessary?
RSL