Messages

1

Support Questions / Re: Subscribe limit

« on: September 19, 2019, 01:58:06 PM »

The CLXDriver.dll version is 1.3.2.

I worked around the problem by creating and initializing another EthernetIPforCLX object (PLCConnection2)  and subscribing 20 tags to the first one and additional tags to the second one.

That seems to work fine. I left all other references pointed to the first EthernetIPforCLX (PLCConnection).

2

Support Questions / Subscribe limit

« on: September 19, 2019, 01:26:05 PM »

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?