Lenze DDS System bus CAN for PLC - Manual (Page 121)

System bus (CAN) for Lenze PLC devices
FIF−CAN system blocks
8.2 FIF_CAN2_IO (node number: 35)
8−1
L
PLC−Systembus EN 2.0
8.2 FIF_CAN2_IO (node number: 35)
This SB serves to the transmission of event− or time−controlled process data via the function interface
of the Drive PLC.
·
The setting of the transmission mode (event− or time−controlled) is effected via C2456. ( ^ 5−6)
·
A sync telegram is not required.
FIF_CAN2_nInW1_a
FIF_CAN2_nInW2_a
FIF_CAN2_bInB _b 0...15
FIF_CAN2_bInB _b 16...31
FIF System bus interface
Byte
7
8
5
6
3
4
1
2
Byte
7
8
5
6
3
4
1
2
FIF_CAN2_nOutW1_a
FIF_CAN2_nOutW2_a
FIF_CAN2_nOutW3_a
FIF_CAN2_bFDO _b 16...31
FIF_CAN2_dnOutD1_p
FIF_CAN2_IO
DINT
WORD
WORD
WORD
16 x BOOL
DINT
Output user data
(8 bytes)
Input user data
(8 bytes)
L
H
L
H
FIF_CAN2_bFDO _b 0...15
16 x BOOL
FIF_CAN2_nOutW4_a WORD
WORD
WORD
16 x BOOL
16 x BOOL
FIF_CAN2_nInW3_a
FIF_CAN2_nInW4_a
WORD
WORD
FIF_CAN2_dnInD1_p
C2493/4
C2493/5
C2493/6
C2493/7
C2492/4
C2492/5
C2491/3
C2491/4
C2492/6
C2492/7
Fig. 8−2 FIF_CAN2_IO system block
Tip!
Via code C2457/2 you can set the monitoring time for the data reception. (Lenze setting: 3000 ms)
·
Further information on this subject can be found in chapter 5.10.1. ( ^ 5−9)