S7+ Requested variable subscriptions count is higher than available limit

[o_atlina]

Hello,

Using the S7+ driver . Data points are imported into the project using "TIA importers"
I do get the following messages:
2/s7plus, Requested variable subscriptions count 714 is higher than available limit 400
4/s7plus, Pollgroup _sub_plc1_FB_Inverter failed to establish subscriptions and will use native polling until new reconnect instead
5/s7plus, Ignoring poll request for Pollgroup _sub_plc1_FB_Inverter because last request did not finish yet
Is it possible to increase the limit of variables in subscriptions? Or how best to split the variables into several subscriptions?

[Gertjan van Schijndel]

The only way to increase the subscription limit is to replace the PLC with a faster one/one that can handle more subscriptions.
In the 'Engineering' tab of the PLC configuration panel you can see how many subscriptions the PLC can handle.

To prevent the error messages you could reduce the number of subscriptions. Multiple subscriptions with the same settings can be replaced with a single subscription.

[o_atlina]

Thank you!