Maximum array size

[acuningham]

I have a three dimensional array of type INT32. The size of the array is [50,50,50]. The DA client is unable to recognize this structure. What are the limits of the client for the maximum array size? I have two other larger arrays that do display and are recognized properly. One is size [999] the other is size [99,99].

[Support Team]

Hello acuningham,

the client and server side UAStacks have configured encoding limits that specify e.g. max array size, max message size and so on.
Since a matrix is send over the network as an array you need to multiply the array dimensions to calculate the overall array size on the network.

In your case the matrx [50,50,50] has 125000 element while the default limit for arrays is 65536.
The [99,99] has 9801 elements which is smaller than the encoding limit of 65536.

Unfortunatly for that error the server does not send a BadEncodingError to the client but instead the client runs into a timeout.

We add an issue for that and will improve that behaviour in a future version so that the client gets a correct error code.

Best Regards

Unified Automation Support Team