A customer needs a solution to read data from PROFINET devices approx. each 10ms and has to send it to a database on the ctrlX CORE (he don't want to send it to an other server, just store it on the CORE itself for example with InfluxDB database).
It will be approx. 500 Byte data per 10ms (-> that's 50kByte per sesond, -> 180 MByte per hour). (Customer has to take care himself to make a ring memory...) Usage: Customer wants to store data of devices to check in case of a machine crash etc.)
I can think of the following solutions:
1) CORE X3 Plus as PROFINET-Device (as Profinet-Hardware, advantage: data are directly in datalayer) with APPs InfluxDB and Telegraf
2) CORE X3 (Standard) with Codeysys Addon as PROFINET-device softstack and APPs InfluxDB and Telegraf and of course PLC App for the PROFINET-softstack.
3) Solution 1 but with additional PLC-App to buffer data in arrays if sending data to InfluxDB would be too slow !?? The same with solution 2 with additional PLC code for buffering data if needed.
4) or write with PLC-App in a file like mentioned here: https://developer.community.boschrexroth.com/t5/ctrlX-PLC/Data-Logging-with-CtrlX/m-p/62675 )
We would be happy for your suggestions !!
The most important question:
How fast can be the data transmission coming from PROFINET into the datalayer and then write to InfluxDB ? for solution 1) and 2)
(The ctrlX CORE will be used just for this function. So no other processes then mentioned above will run.)
Are the values coming via PROFINET into the datalayer are equidistant in time ?🤔
Regards
Stefan Svoboda
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