Appendix
Communication with MotionBus/system bus (CAN)
Addressing of the parameter and process data objects
460
EDBCSXS064 EN 4.0
13.4.5
Addressing of the parameter and process data objects
The CAN bus system is based on a message−oriented data exchange between a transmitter
and many receivers. Thus, all nodes can transmit and receive messages at the same time.
The identifier in the CAN telegram ˘ also called
COB−ID (Communication Object Identifier)
controls which node is to receive a transmitted message. With the exception of the
network management (NMT) and the sync telegram (Sync) the identifier contains the
node address of the drive besides the basic identifier:
Identifier (COB−ID) = basic iden adjustable node address (node ID)
The basic identifier is preset with the following values:
Object
Direction
Basic identifier
to the
ECS module
from the
ECS module
dec
hex
NMT
0
0
Sync
128
80
PDO1
(Process data channel 1)
RPDO1
XCAN1_IN
CAN1_IN
CANaux1_IN
X
512
200
TPDO1
XCAN1_OUT
CAN1_OUT
CANaux1_OUT
X
384
180
PDO2
(Process data channel 2)
RPDO2
XCAN2_IN
CAN2_IN
CANaux2_IN
X
640
280
TPDO2
XCAN2_OUT
CAN2_OUT
CANaux2_OUT
X
641
281
PDO3
(Process data channel 3)
RPDO3
XCAN3_IN
CAN3_IN
CANaux3_IN
X
768
300
TPDO3
XCAN3_OUT
CAN3_OUT
CANaux3_OUT
X
769
301
SDO1
(Parameter data channel 1)
X
1536
600
X
1408
580
SDO2
(Parameter data channel 2)
X
1600
640
X
1472
5C0
Node guarding
X
1792
700
Display of the resulting identifiers
The display code for the resulting identifiers is for the
ƒ
Interface X1 (AIF) C2355.
ƒ
Interface X4 (CAN) C0355.
ƒ
Interface X14 (CAN−AUX) C2455.
Here, no values can be entered.
ƒ
General addressing (
460):
Identifier (COB−ID) = basic iden adjustable node address (node ID)
ƒ
Individual addressing (
Identifier (COB−ID) = 384 + ID offset (C0354 or C2454)