Siemens SINAMICS S120, Function Manual

Page: 785 / 1094

Communication
11.2 Communication via PROFIBUS DP
Drive functions
Function Manual, 11/2017, 6SL3097-4AB00-0BP5
785
Controllers: Protocol always "SIMATIC S7 - 300/400"
Table 11- 8 Additional parameters
Field Value
Network parameter profile DP
Network parameter baud rate Any
Communication partner address PROFIBUS address of the drive unit
Communication partner
slot/rack
Don’t care, 0
Table 11- 9 Variables: "General" tab
Field Value
Name Any
Controller Any
Type Depending on the addressed parameter value,
e.g.:
INT: for integer 16
DINT: for integer 32
WORD: for unsigned 16
REAL: for float
Area DB
DB
(data block number)
Parameter number
1 ... 65535
DBB, DBW, DBD
(data block offset)
Drive object No. and sub-index
bit 15 ... 10: Drive object No. 0 ... 63
bit 9 ... 0: Sub-index 0 ... 1023
or expressed differently
DBW = 1024 * drive object No. + sub -index
Length Not activated
Acquisition cycle Any
Number of elements 1
Decimal places Any
Note
• You can operate a SIMATIC HMI together with a drive unit independently of an existing
controller.
A basic "point-to-point" connection can only be established between two nodes (devices).
•
The "variable" HMI function can be used for drive units. Other functions cannot be used
(e.g. "messages" or "recipes").
• Individual parameter values can be accessed. Entire arrays, descriptions, or texts cannot
be accessed.