We are currently trying to connect the OSIsoft PI System to a CoDeSysOPC-Server using the PI OPC DA interface.
There is also an Stange ECS application connected to this CoDeSysOPC-Server.
When the Stange ECS application is connected to the CoDeSysOPC-Server, we are unable to connect with the PI system.
Has anyone experienced something like this or would have any suggestions for me?
sounds like the max Client is exeeded ( Default is 4)
If i understand it, you do not get values from the CODESYS PI to your OPC DA server connected Client, right?
You could extend the Client by adding to the
do not forget to restart the Pi after this change.
Edwin, can you explain "Buffersize=1600000"? What the buffer, which dimension of value (bytes?).
"Channel" represents only CODESYS OPC connection to PLC? Or any connection like IDE connection, web-visu connection, etc.
BUFFERSIZE is the overall amount of memory to be used by all channels
MAXCHANNELS defines the number of channels that may be handled
Since each channel needs separate send and receive channels
the available communication buffer is BUFFERSIZE / (2*MAXCHANNELS)
- OPC UA
- OPC DA
each occupy one channel...
Thank you for explanations.
Thanks for your response. I have searched the etc folder an it does not contain the config file or any files from CODESYS.
Could you please tell me where exactly I can locate this file?
which version do you have installed on the PI?
(CODESYS runtime 3.5.x.x)
Log in to post a comment.