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110 Communication protocol
Inside the CANopen data frame, different types of Communication
Objects are used to convey the data. Process Data Objects (PDO)
are used for transmitting time critical process data (references,
control commands, status information); Service Data Objects
(SDO) are used for less time critical data, for example, parameters.
START OF
FRAME
1 BIT
ARBITRATION FIELD
COMM.
11 BITS
REMOTE
TRANS-
MISSION
REQUEST
1 BIT
CONTROL
FIELD
6 BITS
DATA
FIELD
0 TO 8
CYCLIC
REDUNDANCY
CHECK
16 BITS
ACKNOW-
LEDGE
FIELD
2 BITS
END OF
FRAME
7 BITS
FUNCTION CODE
NODE ID
10
9
8
7
6
5
4
3
2
1
0
Communication
object
Function code
(binary)
COB ID (hex) COB ID (dec)
NMT
0000
00
0
SYNC
0001
80
128
TIME STAMP
0010
100
256
EMERGENCY
0001
81…FF
129…255
PDO1 (Tx)
0011
181...1FF
385...511
PDO1 (Rx)
0100
201...27F
513...639
PDO6 (Tx)
0101
281...2FF
641...767
PDO6 (Rx)
0110
301...37F
769...895
PDO21 (Tx)
0111
381...3FF
897...1023
PDO21 (Rx)
1000
401...47F
1025...1151
SDO (Tx)
1011
581…5FF
1409…1535
SDO (Rx)
1100
601…67F
1537…1663
NODEGUARD
1110
701…77F
1793…1919
OBJECT ID
(COB ID)
BYTES
(CRC)
(RTR)
(OR 29 BITS)
1 2
3
Header
Control field contents:
1 = IDE bit = 29-bit Extended identifier / 11-bit standard identifier (1 bit)
2 = r0 = reserved (1 bit)
3 = DLC = Data Length Code (4 bits)
Содержание FCAN-01
Страница 1: ... OPTION FOR ABB DRIVES CONVERTERS AND INVERTERS FCAN 01 CANopen adapter module User s manual ...
Страница 4: ......
Страница 10: ...10 Table of contents ...
Страница 14: ...14 Safety instructions ...
Страница 30: ...30 Mechanical installation ...
Страница 36: ...36 Electrical installation ...
Страница 81: ...Start up 81 ...
Страница 82: ...82 Start up 8 Configure the FCAN 01 properties Select the node boot up sequence ...
Страница 108: ...108 Communication profiles ...
Страница 152: ...152 Communication protocol ...
Страница 156: ...156 Diagnostics ...
Страница 160: ...160 Technical data ...
Страница 164: ...164 Appendix A Dictionary structure and entries ...
Страница 173: ...Appendix B CANopen error codes 173 FFFF Manufacturer specific Error code hex Meaning ...
Страница 174: ...174 Appendix B CANopen error codes ...