Siemens manual Assigning the Process Data for the Sinamics G120, Control Word STW

Automation and Drives - SCE

6.CONTROL PROGRAM 'BUCKET ELEVATOR’ ON THE PROFIBUS DP/PROFINET

6.1Assigning the Process Data for the SINAMICS G120

With the process data, the control words and the setpoints (PLC -> SINAMICS) or the status words and the actual values (SINAMICS – PLC) can be transferred.

The structure of the process data (PZD) area is the same in the sequence of its elements (words) for the two indicated interfaces by means of PROFIBUS DP and PROFINET.

	Process Data 1	Process Data 2
Request message	Control word	Main setpoint
(SPS -> SINAMICS)	(STW)	(HSW)
Response message	Status word	Main actual value
(SINAMICS -> SPS)	(ZSW)	(HIW)

6.1.1The Control Word (STW)

Bit No.

	Preface	Notes	Startup with PROFIBUS	Startup with PROFINET	Program	Example
T I A Training Document			Page 134 of 147			Module
			H01
Issued: 02/2008			Frequency Converter SINAMICS G120 on PROFIBUS DP and PROFINET