Hello,

New to the SDK I’m trying to update a group of opc tags using the writeValues() method. I’m receiving the mismatch error status code when I do the write:

Bad_TypeMismatch (0x80740000) “The value supplied for the attribute is not of the same type as the attribute’s value.”

Here is the method I’m using to the write;

private void writeValues(Map opcMap) {
try {
int i = 0;
NodeId[] arrNodes = new NodeId[opcMap.keySet().size()];
Variant[] values = new Variant[opcMap.values().size()];

for (Map.Entry entry : opcMap.entrySet()) {
arrNodes[i] = entry.getKey();
values[i] = entry.getValue().getTagValue().getValue();
i++;
}

StatusCode[] ret = client.writeValues(arrNodes, values);
for (StatusCode code : ret) {
log(“StatusCode = ” + code);
}

} catch (ServiceException e) {
printException(e);
} catch (StatusException e) {
printException(e);
}
}

OpcTag is a simple wrapper class that holds some information along with the DataValue object for the nodeId that I scrap when I first start the application.

When I update the value of the OpcTag.DataValue in my application I just create a Variant and pass a String into the object (i.e. object name is VarString). I then use the OpcTag.DataValue.setValue(VarString) to actually update the value in the map.