Omron 3G3AX-MX2-ECT - Communications Status Transitions

3 - 3
3 Common Slave Specifications
EtherCAT Communication Unit USER’S MANUAL (3G3AX-MX2-ECT)
3-2 Communications Status Transitions
3
3-2 Communications Status Transitions
The EtherCAT State Machine (ESM) of the EtherCAT slave is controlled by the EtherCAT Master.
State
SDO
communications
PDO
reception
PDO
transmission
Details
Initialization (Init) Not supported Not supported Not supported Communications are being initialized.
Communications are not possible.
Pre-Operational
(Pre-Op)
Supported Not supported Not supported Only mailbox communications are possible in this
state. This state is entered after initialization has
been completed. It is used to initialize network
settings.
Safe-Operational
(Safe-Op)
Supported Not supported Supported In this state, PDO transmissions are possible in
addition to mailbox communications. Cyclic
communications can be used to send information
such as status from the inverter.
Operational (Op) Supported Supported Supported This is a normal operating state. Cyclic
communications can be used to control the motor.
Safe-operational
Pre-operational
Initialization
Operational