5 Functional Mechanisms of this Application
5.1 Functionality of process data exchange
SINAMICS G120 DP at S7-1200
Entry-ID: 70155469, V1.4, 07/2018
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5.1.5 FB 11 “Process_Data”
This FB shows the access to the process data with the use of the “DPRD_DAT” /
“DPWR_DAT” instructions. It is called up cyclically in OB1.
Figure 5-5: FB “Process_Data”
Table 5-1: Interface of the “Process_Data” FB
Decisive hardware identifier for reading
data from a DP standard slave /PROFINET
IO device.
When selecting the frame type in the
properties of the SINAMICS drive in the
TIA Portal, STEP 7 creates a system
constant which corresponds to this
identifier. Enter this system constant here.
It is symbolically displayed to you in the
dropdown list when entering the
parameters.
Decisive hardware identifier for writing data
to a DP standard slave /PROFINET IO
device.
When selecting the frame type in the
properties of the SINAMICS drive in the
TIA Portal, STEP 7 creates a system
constant which corresponds to this
identifier. Enter this system constant here.
It is symbolically displayed to you in the
dropdown list when entering the
parameters.
Control word of SINAMICS G120