Condition monitoring system for PBX - collects information from all de-centralised devices before evacuating

摘要

The condition monitoring system has its central control fetching interrogation information from the decentralised devices and entering it into storage cells unevaluated. The cells are assigned one to each decentralised device and are selected via addresses. The central control only evaluates this stored information after it has been collected from all decentralised devices. Only then does the central control initiate events resulting in information being sent back to the decentralised devices. Information evaluation is given a lower priority by the central control than information collection from the decentralised devices.