3
EtherCAT with FHPP
Festo – EMCA-EC-C-HP-EN – 2017-11e – English
41
Layout of the Ethernet and EtherCAT frame
This diagram shows the layout of the Ethernet and EtherCAT frame with the protocol “CANopen over
EtherCAT (CoE)”.
Ethernet Header
14 Byte
EtherCAT Frame Header
2 Byte
Ethernet FCS
4 Byte
EtherCAT Protocol Data
… Byte
EtherCAT Frame [ETG]
Ethernet Frame [IEEE 802.3]
Ether type:
0x88A4 =EtherCAT
Type:
4= Process data communication
5= Mailbox communication
1st Process Data
… Byte
Process Data Frame Header
12 Byte
PDO Header
8 Byte
PDO
(1800
h
/1A00
h
)
FHPP Standard
Mailbox Header
6 Byte
Error Code
2 Byte
Data
1 … 5 | 6 … n Byte
CoE Data
… Byte
CoE Header
2 Byte
Type:
0x03= CoE
Service:
0x01= Emergency
0x02= SDO request
0x03= SDO response
0x08= SDO Information
Error Register
1 Byte
Process Data Object Frame
Process Data Frame
Mailbox Frame
Emergency Frame
SDO Request Frame/SDO Response Frame
SDO Information Frame
Index
2 Byte
Data
1 … 4 | 5 … n Byte
SDO control
1 Byte
Subindex
4 Byte
SDO Info Header
2 Byte
SDO Info Service Data
… Byte
Standard CANopen Frame
Standard CANopen Emergency Frame
4th Process Data
… Byte
PDO Header
8 Byte
PDO
(1803
h
/1A03
h
)
FHPP+
…
…
Standard CANopen PDO Frame
…
…
Fig. 3.3
Layout of the Ethernet and EtherCAT frame
Summary of Contents for EMCA-EC-67 CO Series
Page 33: ...2 CANopen Festo EMCA EC C HP EN 2017 11e English 33 ...
Page 73: ...3 EtherCAT with FHPP Festo EMCA EC C HP EN 2017 11e English 73 ...
Page 87: ...4 EtherNet IP with FHPP Festo EMCA EC C HP EN 2017 11e English 87 ...
Page 113: ...6 PROFINET IO with FHPP Festo EMCA EC C HP EN 2017 11e English 113 ...
Page 116: ...7 FHPP 116 Festo EMCA EC C HP EN 2017 11e English ...
Page 140: ...8 FHPP standard data I O data 140 Festo EMCA EC C HP EN 2017 11e English ...
Page 148: ...9 Measuring reference system 148 Festo EMCA EC C HP EN 2017 11e English ...
Page 210: ...10 Control via FHPP 210 Festo EMCA EC C HP EN 2017 11e English ...
Page 223: ...11 Monitoring of the drive behaviour Festo EMCA EC C HP EN 2017 11e English 223 ...
Page 367: ...D CANopen communication Festo EMCA EC C HP EN 2017 11e English 367 ...
Page 402: ...F Diagnostics and fault clearance 402 Festo EMCA EC C HP EN 2017 11e English ...
Page 413: ...EMCA EC 67 CO DIO EC EP PN Festo EMCA EC C HP EN 2017 11e English 413 ...
Page 414: ...EMCA EC 67 CO DIO EC EP PN 414 Festo EMCA EC C HP EN 2017 11e English ...
Page 415: ......