D CANopen
communication
Festo – EMCA-EC-C-HP-EN – 2017-11e – English
335
D.6
SYNC message (SYNC message)
In a CAN bus network, several CAN bus participants can be synchronised with each other through send
ing of the SYNC message. To do this, one of the CAN-bus participants (usually the higher-order control
ler (Host)) periodically sends out synchronisation messages. All connected CAN-bus participants re
ceive these messages and use them for processing of the PDOs
è
Note
The EMCA can evaluate the SYNC message but not send a SYNC message.
80
h
0
CAN-ID
Data length
Fig. D.6
Structure: SYNC message
D.6.1
Object 1005h: SYNC communication object identifier (COB-ID SYNC)
The COB-ID SYNC and receipt of SYNC messages are specified through the object.
Index
Name
Object
code
Data
type
Ac
cess
PDO
map
ping
Value
range
Default value
1005
h
COB-ID SYNC
VAR
UINT32
rw
no
80
h
Tab. D.16
Objekt 1005
h
Design COB-ID SYNC
Bit
Value
Description
31
0
h
reserved
30
0
h
CANopen device does not generate any SYNC messages.
1
h
Not supported
29
0
h
Value for 11-bit CAN-ID
1
h
Not supported
11 … 28
00000
h
Value for 11-bit CAN-ID
0 … 10
080
h
CAN-ID for the communication object SYNC
Tab. D.17
Design COB-ID SYNC
Содержание EMCA-EC-67 CO Series
Страница 33: ...2 CANopen Festo EMCA EC C HP EN 2017 11e English 33 ...
Страница 73: ...3 EtherCAT with FHPP Festo EMCA EC C HP EN 2017 11e English 73 ...
Страница 87: ...4 EtherNet IP with FHPP Festo EMCA EC C HP EN 2017 11e English 87 ...
Страница 113: ...6 PROFINET IO with FHPP Festo EMCA EC C HP EN 2017 11e English 113 ...
Страница 116: ...7 FHPP 116 Festo EMCA EC C HP EN 2017 11e English ...
Страница 140: ...8 FHPP standard data I O data 140 Festo EMCA EC C HP EN 2017 11e English ...
Страница 148: ...9 Measuring reference system 148 Festo EMCA EC C HP EN 2017 11e English ...
Страница 210: ...10 Control via FHPP 210 Festo EMCA EC C HP EN 2017 11e English ...
Страница 223: ...11 Monitoring of the drive behaviour Festo EMCA EC C HP EN 2017 11e English 223 ...
Страница 367: ...D CANopen communication Festo EMCA EC C HP EN 2017 11e English 367 ...
Страница 402: ...F Diagnostics and fault clearance 402 Festo EMCA EC C HP EN 2017 11e English ...
Страница 413: ...EMCA EC 67 CO DIO EC EP PN Festo EMCA EC C HP EN 2017 11e English 413 ...
Страница 414: ...EMCA EC 67 CO DIO EC EP PN 414 Festo EMCA EC C HP EN 2017 11e English ...
Страница 415: ......