I have attached the photos of the requested information.

I used the ConnectivityExplorer. When I hit the "Add Row" it gave an error message, but if I hit the read button it produced results. I attached both photos. The first row is DataType, the second is ValueRank, the third is ArrayDimensions.

Code Snippet:
public void WriteCamArrayToPAC()
{
List<CamItem> camItems = RmgSegmentDataConverter.ToCamItems(SegmentList);
byte[,] byteArray = CamArrayConverter.ConvertCamListToByteArray(camItems);

OpcClient opcClient = OpcClient.Get();
opcClient.WriteToTag(Tags.GenV_Cam_Array, byteArray);

byte[] camRefByteArray = (byte[]) opcClient.ReadTag(Tags.GenV_Cam_Ref);

CamRef camRef = CamArrayConverter.ConvertByteArrayToCamRef(camRefByteArray);

camRef.nElements = (short) camItems.Count;
camRef.xStart = camItems.Count > 0 ? camItems[0].dX : 0;
camRef.xEnd = camItems.Count > 0 ? camItems[camItems.Count - 1].dX : 0;

camRefByteArray = CamArrayConverter.ConvertCamRefToByteArray(camRef, camRefByteArray);
opcClient.WriteToTag(Tags.GenV_Cam_Ref, camRefByteArray);
}

// OPC UA Write function within OpcClient Class
public void WriteToTag(string nodeId, object value)
{
int attempts = 0;
while (IsInitialized && attempts++ < MAX_RETRY_ATEMPTS)
{
try
{
easyUAClient1.WriteValue(Tags.ENDPOINT_DESCRIPTOR, nodeId, value);
attempts = MAX_RETRY_ATEMPTS;
}
catch (UAException e)
{
Log.E(TAG, e.ToString());
}
}
}

// OPC UA Read function within OpcClient Class
public object ReadTag(string nodeId)
{
object ret = null;
if(IsInitialized)
{
int attempts = 0;
UAException uaException = null;
while (attempts++ < MAX_RETRY_ATEMPTS)
{
try
{
ret = easyUAClient1.ReadValue(Tags.ENDPOINT_DESCRIPTOR, nodeId);
attempts = MAX_RETRY_ATEMPTS;
}
catch (UAException e)
{
uaException = e;
Log.E(TAG, e.ToString());
}
}
if (ret == null)
{
throw uaException;
}
}
return ret;
}

This is the code that I am trying to get to run. It worked perfectly fine with the OPC DA functions but not for the OPC UA. As I was converting my program from DA TO UA this is the only part that breaks. I also attached a photo of Cam_Ref for DA

1. Cam_Array I want to write to the tag.
2. Cam_Ref I want to write and read to it.

Sorry for the confusion, I should have stated more properly.

The arrays are byte[ , ] and byte[ ]. I am sending the correct data type that they use, but it still refuses to work. This is the error I receive when trying to run the code below.

easyUAClient1.ReadValue(opc.tcp://192.168.10.50:4840/, nsu=CODESYSSPV3/3S/IecVarAccess ;ns=4;s=|var|B-Nimis MC-Pi Prime S01.Application.GenV.Cam_Ref);

UAStatusCodeException: Status is not good: {BadAttributeIdInvalid}. The attribute is not supported for the specified Node.
+ The attribute Id used was 'Value'.
+ The node descriptor used was: NodeId="nsu=CODESYSSPV3/3S/IecVarAccess ;ns=4;s=|var|B-Nimis MC-Pi Prime S01.Application.GenV.Cam_Ref".
+ The client method called (or event/callback invoked) was 'ReadMultiple[1]'.