OPC UA Communication response time

Hello, 

We have ctrlX CORE and OPC UA Server app version 1.20.1. we are developing weh based HMI using javascript to operate robot. our web HMI, as a client communicate with opcua server. self signed certificate created in cliet side to connect with OPC UA.

We are able to write data to the ctrlX CORE PLC using OPC UA nodeID but problem is that it take times. which parameter we can modify so we can get as fast as possible communication with PLC. 

is there any other protocol that we can implemetn for real-time communication?

 

Thank you!!

Best reply by Sgilk

What kind of response time are you looking for?

There are some configurable paramaters on the OPC UA Server side but I don't think they will help you here. As a non-real time communication method you shouldn't expect <50ms latency. My suggestion would be to go direct to the datalayer if possible. That will remove the OPC UA server-client latency.

See: Python Datalayer Client  

If you would like true real-time, you will need to implement this in C++ 

See: Datalayer Realtime 

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