Yaskawa Sigma-5 User Manual: MECHATROLINK-II Commands Uživatelský manuál Strana 11

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1.1 MECHATROLINK-II Communications
1-3
1
MECHATROLINK-II Commands
1.1.3 State Transition Diagram
The primary (master) and secondary (slave) station state transitions are shown in the following diagrams.
Primary Station (Master Station) State Transition
Secondary Station (Slave Station) State Transition
Phase Abbreviation Description
1 P1 Waiting for establishment of connection.
2 P2 Asynchronous communications enabled. Only asynchronous commands can be used.
3P3
Synchronous communications enabled. Both synchronous and asynchronous commands
can be used.
Start
P1/ Waits for connection establishment
P2/ Asynchronous communications state
P3/ Synchronous communciations state
Power ON
Sends SYNC_SET
Sends CONNECT
(Asynchronous communications)
Receives DISCONNECT
Receives CONNECT
Communications
error
Communications
error
Receives DISCONNECT
Communications
error
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