CANopen Firmware
11.6 Important CANopen Telegrams
The following table shows a short listing of important common CANopen telegrams.
CAN Identifier
Name
Length
Data
Description
0
NMT
2
0x01 xx
Start
(
Preoperational -> Operational
)
0
NMT
2
0x80 xx
Operational -> Preoperational
0
NMT
2
0x81 xx
Reset
0
NMT
2
0x82 xx
Reset Communication
0x80
SYNC
0
-
Sync at all
0x80 +
Node-ID
EMCY
0...8 Bytes
Error code Emergency Message
Node-ID
. ... Node-ID of the addressed CANopen module
xx...
Node-ID of a CANopen module or ‘00’ for a message to all CANopen nodes
CANopen-PN
Manual • Doc. No.: C.2921.21 / Rev. 1.6
Page 93 of 105