Siemens SINAMICS G120D - Profidrive Profile for PROFIBUS and PROFINET; Cyclic Communication; Positioner: Cyclic Communication

Configuring the fieldbus
7.4 PROFIdrive profile for PROFIBUS and PROFINET
Converter with control units CU250D-2
94 Operating Instructions, 04/2014, FW V4.7, A5E34261542B AA
7.4
PROFIdrive profile for PROFIBUS and PROFINET
7.4.1
Cyclic communication
7.4.1.1
Positioner: Cyclic communication
The send and receive telegrams of the inverter for cyclic communication are structured as
follows:
Figure 7-1 Telegrams for cyclic communication - Position control
Table 7- 1 Explanation of the abbreviations
Abbreviation
Explanation
STW
Control word
See Control and status word 1 (Page 97)
See Control and status word 2 (Page 99)
ZSW
Status word
SATZANW Selects the traversing block See Control word block selection
(Page 106)
AKTSATZ
Currently selected traversing block
MDI_TARPOS
Position setpoint for direct setpoint input (MDI)
XIST_A
Actual position value (32 bits)
OVERRIDE
Speed setpoint