Cyclic Communication Via Standard Telegram 1 With Profibus Or Profinet - Siemens SINAMICS G110M Function Manual

Appendix
A.1 Communication with STEP7
A.1.3.1

Cyclic communication via standard telegram 1 with PROFIBUS or PROFINET

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The controller and inverter communicate via
standard telegram 1. The control specifies con-
trol word 1 (STW1) and the speed setpoint, while
the inverter responds with status word 1 (ZSW1)
and its actual speed.
In this example, inputs E0.0 and E0.6 are linked
to the ON/OFF1 bit or to the "acknowledge fault"
bit of STW 1.
Control word 1 contains the numerical value
047E hex. The bits of control word 1 are listed in
the following table.
The hexadecimal numeric value 2500 specifies
the setpoint frequency of the inverter. The maxi-
mum frequency is the hexadecimal value 4000.
The controller cyclically writes the process data
to logical address 256 of the inverter. The inver-
ter also writes its process data to logical
address 256. You define the address area in HW
Config.
Function Manual, 01/2016, FW V4.7 SP6, A5E34229197B AC
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