How to extend the retention period for historical data in CS-3000
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The historical data stored in our company’s DCS computers can only be retained for 12 days. For example, if you want to view the historical alarm and operation information for 1FIC1180, only the data from the last 12 days is available on the computer; the same applies to instruments with other tag numbers as well. Dear experts, I would like to retrieve the historical data from the past 2 months. How should I set this up on my computer?
Buy long-duration data packages,,,,.
Buy, buy, buy. . . Go to Yokogawa to purchase the license
For historical trends, one can only purchase the long-term trend package; operation information can be copied to a designated folder on a daily basis, otherwise the new data will overwrite it.
If you have purchased the long-term trend package, as long as you have enough hard drive space, you need to set the number of days desired in the trend block settings for long-term trends; this way, you will be able to view the data later on
Historical operation information and historical alarm information should have nothing to do with the long-term trend package; our company doesn’t have this package installed, yet we can still access the historical operation information and historical alarm information. Please help again!