Lenze DDS System bus CAN for PLC - Manual (Page 105)

System bus (CAN) for Lenze PLC devices
CAN system blocks
7.5 CAN3_IO (node number: 33)
7−17
L
PLC−Systembus EN 2.0
7.5 CAN3_IO (node number: 33)
This SB serves to transmit event−controlled or time−controlled process data via the system bus.
·
The setting of the transmission mode (event− or time−controlled) is effected via C0356. ( ^ 3−6)
·
A sync telegram is not required.
CAN3_nInW1_a
CAN3_nInW2_a
CAN3_bInB _b 0...15
CAN3_bInB _b 16...31
System bus interface
Byte
7
8
5
6
3
4
1
2
Byte
7
8
5
6
3
4
1
2
CAN3_nOutW1_a
CAN3_nOutW2_a
CAN3_nOutW3_a
CAN3_bFDO _b 16...31
CAN3_dnOutD1_p
CAN3_IO
DINT
WORD
WORD
WORD
16 x BOOL
DINT
Output user data
(8 bytes)
Input user data
(8 bytes)
L
H
L
H
CAN3_bFDO _b 0...15
16 x BOOL
CAN3_nOutW4_a WORD
WORD
WORD
16 x BOOL
16 x BOOL
CAN3_nInW3_a
CAN3_nInW4_a
WORD
WORD
CAN3_dnInD1_p
C0868/8
C0868/9
C0869/3
C0868/10
C0868/11
C0866/8
C0866/9
C0863/3
C0863/4
C0867/3
C0866/10
C0866/11
Fig. 7−5 CAN3_IOsystem block
Tip!
Via C0357/3 you can set the monitoring time for the data reception. (Lenze setting: 3000 ms)
·
Further information on this subject can be found in chapter 3.12.1. ( ^ 3−11)