M
Dear Sirs:
I have been asked by someone if a portable datalogger (event logger) for monitoring the performance of particular individual machines on a temporary basis is available. I am working on a long term solution involving a centralised network system. In the mean time though, we are interested in connecting a data logger to certain individual machines for short term studies of down time occurances, faults, etc. The device would be moved from machine to machine as required.
This device would be a little different from a typical data logger. Rather than recording analogue readings on a timed basis, it would need to record the times at which digital events occurred. Such devices exist, but they are much less common than the conventional data loggers.
A normal data logger which time stamped events would work, but I am also interested in something which is more directly intended for this
application. Several years ago I had some literature on a data logger which was intended for exactly this application (production analysis). The inputs had defined functions and modes. It also came with special software which
helped you to analyse the results. Since it was intended for down time and fault analysis, it didn't require you to spend a lot of time manipulating data in spreadsheets to get useful results.
Unfortunately, a while ago I decided that I would never use such a thing, and I believe that I threw the literature out (at least I can't find
it now). Now however, I need one. If anyone has any information on this or a similar item I would be interested in hearing from them. Vendors can contact me directly if they wish.
If anyone would care to recommend a conventional data (event) logger which would time stamp digital inputs (24VDC) and allow the results to be
down loaded into a PC I would also be interested. It should have 4 or so digital inputs, and store 25,000 or more time stamped events. The clock and
the memory should be battery backed, and the whole device should be small enough to fit in the bottom of a crowded panel. No analogue inputs are required.
I am looking for an off the shelf solution as I don't have the time to cobble together hardware or write software. A solution involving an "old
PC" would be a very poor one as it would present too many problems fitting it into the available space with most of the machines.
**********************
Michael Griffin
London, Ont. Canada
[email protected]
**********************
I have been asked by someone if a portable datalogger (event logger) for monitoring the performance of particular individual machines on a temporary basis is available. I am working on a long term solution involving a centralised network system. In the mean time though, we are interested in connecting a data logger to certain individual machines for short term studies of down time occurances, faults, etc. The device would be moved from machine to machine as required.
This device would be a little different from a typical data logger. Rather than recording analogue readings on a timed basis, it would need to record the times at which digital events occurred. Such devices exist, but they are much less common than the conventional data loggers.
A normal data logger which time stamped events would work, but I am also interested in something which is more directly intended for this
application. Several years ago I had some literature on a data logger which was intended for exactly this application (production analysis). The inputs had defined functions and modes. It also came with special software which
helped you to analyse the results. Since it was intended for down time and fault analysis, it didn't require you to spend a lot of time manipulating data in spreadsheets to get useful results.
Unfortunately, a while ago I decided that I would never use such a thing, and I believe that I threw the literature out (at least I can't find
it now). Now however, I need one. If anyone has any information on this or a similar item I would be interested in hearing from them. Vendors can contact me directly if they wish.
If anyone would care to recommend a conventional data (event) logger which would time stamp digital inputs (24VDC) and allow the results to be
down loaded into a PC I would also be interested. It should have 4 or so digital inputs, and store 25,000 or more time stamped events. The clock and
the memory should be battery backed, and the whole device should be small enough to fit in the bottom of a crowded panel. No analogue inputs are required.
I am looking for an off the shelf solution as I don't have the time to cobble together hardware or write software. A solution involving an "old
PC" would be a very poor one as it would present too many problems fitting it into the available space with most of the machines.
**********************
Michael Griffin
London, Ont. Canada
[email protected]
**********************