3. EtherCAT Communication
3-2
3.1.1
EtherCAT State Machine
Init
Operational
Pre-Operational
Safe-Operational
Boot
The EtherCAT drive has 5 states as shown above, and a state transition is achieved by an upper level
controller (master).
State
Description
Boot
A state for firmware updates. Only mailbox communication using the FoE (File
access over EtherCAT) protocol is available. The drive can transit to the Boot state
only when in the Init state.
Init
Initializes the communication state.
Unable to perform mailbox or process data communication.
Pre-Operational
Mailbox communication is possible.
Safe-
Operational
Mailbox communication is possible and PDO can be transmitted. PDO cannot be
received. The process data of the drive can be passed to an upper level controller.
Operational
Mailbox communication is possible and PDO can be transmitted and received. The
process data can be properly exchanged between the drive and the upper level
controller, so the drive can be normally operated.
Summary of Contents for L7NHF Series
Page 2: ......
Page 14: ...Table of Contents xii ...
Page 60: ...2 Wiring and Connection 2 38 ...
Page 158: ...6 Safety Functions 6 6 ...
Page 172: ...7 Tuning 7 14 ...
Page 182: ...8 Procedure Function 8 10 ...
Page 192: ...9 Full Closed Control 9 10 ...
Page 214: ...10 Object Dictionary 10 22 ...
Page 363: ...11 Product Specifications 11 43 ...
Page 364: ......