Lenze DDS System bus CAN for PLC - Manual (Page 22)

System bus (CAN) for Lenze PLC devices
General information
2−10
l
PLC−Systembus EN 2.0
2.6.3 Process data telegram
The process data telegram is structured as follows:
11bit 8 bytes user data
Identifier Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8
Identifier
Information on the identifier can be found in chapter 2.4.1. ( ^ 2−3)
User data
The 8 bytes user data received or to be transmitted respectively can be read or written
simultaneously by several variables of different data types.
Detailed information on the user data can be found in the description to the respective system block:
·
CAN system blocks ( ^ 7−1 ff.)
·
FIF−CAN system blocks ( ^ 8−1 ff.)
·
CAN−AUX system blocks ( ^ 9−1 ff.)