Lenze 9300 Servo PLC, Руководство пользователя

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System bus (CAN) with Servo PLC & Drive PLC
System blocks
6.4 CAN3_IO
6-17
L
PLC-Systembus EN 1.1
Process data telegram
The process data telegram consists of an identifier and 8 bytes of user data.
11-bit 8-byte user data
Identifier Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8
Identifier
Information about the identifier can be found in chapter 2.3.1.
(
^
2-2)
User data
The first 4 of the 8 bytes of user data to be sent can be written by several variables of a different data
type at the same time and can therefore - as required - be transmitted as
•
binary information (1-bit)
•
quasi-analog value (16-bit)
•
phase-angle information (32-bit)
from the PLC program:
Byte Variable (1-bit) Variable (16-bit) Variable (32-bit)
1, 2 CAN3_bFDO
0
_b
...
CAN3_bFDO
15
_b
CAN3_nOutW1_a
CAN3 dnOutD1 p
3, 4 CAN3_bFDO 16 _b
...
CAN3_bFDO 31 _b
CAN3_nOutW2_a
CAN3_dnOutD1_p
5, 6
CAN3_nOutW3_a
7, 8
CAN3_nOutW4_a
Tip!
Make sure that a byte to be transmitted is not at the same time written by different variable types to
ensure data consistency.
•
For writing bytes 1 and 2, either use only the variable CAN3_dnOutD1_p , only the variable
CAN3_nOutW1_a or only the variables CAN3_bFDO0_b ... CAN3_bFDO15_b .
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