Segundo a documentação do protocolo BACnet:

Specifies that the access rights, which this object represents, may be evaluated successfully only if the original credential, which has this Access Rights object assigned, is accompanied by a second credential that meets the accompaniment criteria and is presented at the same access point. The accompanying credential must also have valid access rights to the Access Point where both credentials are presented. It is a local matter as to whether the accompanying credential is required to be presented by the access user before or after the original credential.

A propriedade accompaniment do objeto accessRights pode ser lida e escrita utilizando um tag bloco de 2 elementos.

Parâmetros texto

Parâmetros numéricos

Elementos do bloco