Tag access operations include operations such as reading, writing, writing EPC, locking and killing operations. Tag access operations are applied to a single tag. If there are multiple tags in the antenna field, it is undetermined which tag the operation ultimately acts on. In this case, if you need to accurately act on a tag, you can pass the TagFilter parameter to the tag access methods to do it.

 

The tag access operations can only be performed on one antenna. Therefore, before the tag access operation, the TagopAntenna parameter must be set. The reader uses the corresponding antenna for tag access operation according to the specified antenna number.