System bus (CAN) with Servo PLC & Drive PLC
General information
2-12
l
PLC-Systembus EN 1.1
2.6.1.4
Parameter data (Data 1 ... Data 4)
Identifier
Command
Index
Subindex
Data 1
Data 2
Data 3
Data 4
Identifier
Command
code
Low-byte
High-byte
Subindex
Data 1
Data 2
Data 3
Data 4
Up to 4 bytes (Data 1 ... Data 4) are available for parameter data.
•
Data is entered in flush left Intel format with Data 1 as LSB and Data 4 as MSB (see example).
Example:
Transmitting the value “ 20” for a code in Fixed32 data format.
•
Fixed32 is a fixed-point format with 4 decimal places, accordingly, the value has to be
multiplied by 10000.
Data
1...4
=
20
⋅
10000
=
200000
=
00 03 0D 40
hex
11 Bit
8-byte user data
Identifier
Command
Index
Subindex
Data 1
Data 2
Data 3
Data 4
Identifier
Command
code
Low-byte
High-byte
Subindex
Data 1
Data 2
Data 3
Data 4
40
hex
0D
hex
03
hex
00
hex
(LSB)
(MSB)
Tip!
The parameters of the Lenze controllers are stored in different formats.
For detailed information please read the chapter “ Appendix - Attribute table” in the corresponding
PLC Manual.
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