
System bus (CAN) for Lenze PLC devices
"CAN" system bus interface configuration
3−4
l
PLC−Systembus EN 2.0
3.4 Identifiers of the process data objects
The identifiers for the CAN1_IO ... CAN3_IO process data objects are generated by the so−called
basic identifier and the node address set in C0350:
Identifier + basic identifier ) node address
Basic identifiers
dec hex
PDOs CAN1_IO (cyclic process data)
CAN1_IN 512 200
CAN1_OUT 384 180
CAN2_IO (event− or time−controlled process data)
CAN2_IN 640 280
CAN2_OUT 641 281
CAN3_IO (event− or time−controlled process data)
CAN3_IN 768 300
CAN3_OUT 769 301
3.4.1 Allocation of individual identifiers
For greater system bus networks with many nodes it may be reasonable to set individual identifiers
for the CAN1_IO ... CAN3_IO process data objects via C0353/C0354, which are independent of the
node address set in C0350:
1. Set C0353/x to "1".
– (x = subcode of the corresponding process data object):
Code LCD
Possible settings
Information
Lenze Selection
C0353 CAN addr sel 0 Identifier assignment under C0350 + basic
identifier
1 Identifier assignment under C0354/x
Source for the identifiers of the
process data objects
· Save changes with C0003 = 1.
· Changes are only valid after
reset node!
1 CAN addr sel1 0 CAN1_IN/OUT
2 CAN addr sel2 0 CAN2_IN/OUT
3 CAN addr sel3 0 CAN3_IN/OUT
2. Set the value which added to "384" makes the desired identifier in C0354/x.
– (x = subcode of the corresponding process data object):
Code LCD
Possible settings
Information
Lenze Selection
C0354 CAN addr 1 {1} 512 Specification of individual
identifiers for the process data
objects
1
2
3
4
5
6
IN1 addr2
OUT1 addr2
IN2 addr2
OUT2 addr2
IN3 addr2
OUT3 addr2
129
1
257
258
385
386
CAN1_IN
CAN1_OUT
CAN2_IN
CAN2_OUT
CAN3_IN
CAN3_OUT
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