Right-click an Array to Cluster function on the block diagram and select Cluster Size from the shortcut menu to display this dialog box.
Use this dialog box to specify the number of elements the Array to Cluster function pulls out of the array when converting an array to a cluster.
Because the size of a cluster is a fixed value, you must specify the number of elements in the cluster. The number of elements in the cluster defined by the Array to Cluster function must be between 1 and 256. The default is 9. If the Array to Cluster function is configured with more cluster elements than are actually in the array when the function executes, the cluster is padded with appropriate default data.