Siemens SINAMICS S120 Series Function Manual page 93

Field
DBB, DBW, DBD
(data block offset)
Length
Acquisition cycle
Number of elements
Decimal places
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.
Communication
Function Manual, 12/2018, 6SL3097-5BD00-0BP0
Communication via PROFIBUS DP
4.2 Commissioning PROFIBUS
Value
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
Not activated
Any
1
Any
91