MorphuisOGrady
Member
Hi,
I'm not too well versed in database programming so its something I would rather avoid at this late stage in a project.
I am doing some logging of data in an S7 315 PLC which is used for statisical purposes: No of Cycles each day, weight, drying times, cycle times etc etc
Some data get updated each day and some each cycle. I only hold onto 7 days data to keep memory to a minimum. Now customer has requested that while I display a weeks data on HMI they want to log the old data somehow so they can retrieve it at a later late.
Am I correct in saying that I cannot log to a SQL database without extra licencing for WinCC?
Can anyone please suggest a way of logging this data so I can retrieve with ease if required? There is also a user archive which might be of use.
I'm not too well versed in database programming so its something I would rather avoid at this late stage in a project.
I am doing some logging of data in an S7 315 PLC which is used for statisical purposes: No of Cycles each day, weight, drying times, cycle times etc etc
Some data get updated each day and some each cycle. I only hold onto 7 days data to keep memory to a minimum. Now customer has requested that while I display a weeks data on HMI they want to log the old data somehow so they can retrieve it at a later late.
Am I correct in saying that I cannot log to a SQL database without extra licencing for WinCC?
Can anyone please suggest a way of logging this data so I can retrieve with ease if required? There is also a user archive which might be of use.