
6 DSP301 and DSP402 Specifications
YASKAWA ELECTRIC
SIEP C730600 64A 1000-Series Option SI-ES3 Technical Manual
19
EtherCAT State Machine
Figure 11
Figure 12 EtherCAT State Machine
The option enters the INIT state directly after start-up. After this, the option can be switched to the Pre-Operation
(PREOP) state. In the PREOP state, drive parameters can be accessed by CoE SDO.
After the master has configured the slave, the option can be switched to Safe-Operation (SAFEOP) state. In the SAFEOP
state, Input I/O data (PDOs) will be sent from the option to the EtherCAT master, but there may be no void Output I/O
data from the master to the option.
When the transition from PREOP to SAFEOP occurs, the option will process the configured PDO assignments and
re-map the relevant drive registers. After this, the option will enter the SAFEOP state.
In order to communicate Output I/O data, the master must switch the option to Operation (OP) state.
EtherCAT Operation Mode Relations
Table 5 EtherCAT Operation Mode Relations
Note:
If the requested drive state cannot be entered due to transition from lower to higher state (the drive might be controlled locally
and reject an application IF state switch), an error will be generated on EtherCAT. The state transition time out wait time is 3
seconds.
EtherCAT state
Event
Description
INIT
State
SDO access possible against the drive.
PREOP
State
• SDO access possible against the drive.
• No ctrl data is mapped against the drive.
• Only drive status is mapped on resp registers to service the DSP emergency services.
SAFEOP
State
• SDO access possible against the drive.
• Input PDO data from “Drive
→
Option” valid.
• Master output data “Option
→
Drive” not valid.
OP
State
• SDO access possible against the drive.
• Input PDO data from “Drive
→
Option” valid.
• Master output data “Option
→
Drive” valid.
PREOP
→
SAFEOP
Trans
• Option will re-map required drive registers in NOID.
• Option will trigger INIT request to re-map ctrl/resp registers exchanged in Online-DRV.
SAFEOP
→
PREOP
SAFEOP
→
INIT
OP
→
PREOP
OP
→
INIT
Trans
• If drive is operating, option will trip drive with bUS error.
• Option will trigger NOID to switch operation mode to Online-PRG.
• Option will remap and clear all ctrl/resp data.
SAFEOP
→
OP
Trans
NOID will SET “ctrl data valid bit”
OP
→
SAFEOP
Trans
No processing done, only bUS error is set against the drive.
INIT
Pre-Operational
Safe-Operational
Operational
Power ON
(IP)
(PI)
(SP)
(PS)
(OP)
(OI)
(SI)
(SO)
(OS)
Содержание SI-ES3
Страница 1: ......