SEQUENCER SYSTEM AND ADDRESS SETTING METHOD

摘要

A sequencer system (10) comprises a plurality of bases (B). The bases (B) further comprise a fundamental base (B0) whereupon a control unit (U00) is mounted, and a plurality of extension bases (B1-2). The fundamental base (B0) and the plurality of extension bases (B1-2) are serially connected by a bus using a composite signal line (BUS) with the fundamental base (B0) being one end. By performing transmission between the bases (B) in a relay scheme, communication with bases (B) other than adjacent bases (B) becomes possible. The control unit (U00) is capable of transmitting to the bases (B) a HOP designation packet which designates a number of HOPs. When a HOP designation packet with a number of HOPS other than zero is received, the base (B) decrements the number of HOPs by 1 and transfers the HOP designation packet to the next base (B) connected in series. If a HOP designation packet with zero HOPs is received, the base (B) determines that the HOP designation packet is addressed to itself.