Subscribe seems to have a hard limit of 21 Subcribed tags.
I am using Subscribe as follows:
public EthernetIPforCLX PLCConnection;
...
PLCConnection.SubscriptionDataReceived += tagUpdate; //
PLCConnection.PollRateOverride = 500;
...
PLCConnection.Subscribe("myTag1", 1, tagUpdate);
PLCConnection.Subscribe("myTag2", 1, tagUpdate);
...
PLCConnection.Subscribe("myTag21", 1, tagUpdate);
When I add one more Subscribe, the driver seems to fail, nothing seems to work correctly. The subscription data recieved starts sending error -22 (no response from PLC), direct reads and writes no longer work. What's up?