Siemens Sinumerik 840D sl Function Manual page 243

10/15
PN/PN coupler
http://support.automation.siemens.com/WW/view/de/26993088/133300
DP/DP coupler
http://support.automation.siemens.com/WW/view/de/23641045/133300
Note
In order to couple the NCUs with one another, both NCUs must be configured in a
Step7 project.
Step 1: Set the interface type
The properties of the interface are accessed by double clicking on interface X136.
The interface type must be set to "PROFIBUS" under the "General" tab.
A window then opens with the PROFIBUS configuration. PROFIBUS must be con-
figured in this window in the usual way.
Step 2: Set the operating mode
Under the "Mode" tab, an NCU must be set as "DP slave", the other NCU as "DP
master".
The configurations can then be saved in both NCUs.
Step 3: Establish the coupling
In order that communication can be established between both NCUs, a coupling
must be established between both of them. To do this, the already configured sta-
tion must be selected from the hardware catalog in the "PROFIBUS--DP" area – for
SINUMERIK, this is "CPU31..." – and this must then be dragged to the PROFIBUS
line of the PROFIBUS master NCU. The "Properties -- DP slave" window is ope-
ned.
Under the "Coupling" tab, the configured PROFIBUS master NCU must be selec-
ted and this connected by selecting "Couple". The window must then be exited with
"OK" and the project saved.
Step 4: Set the logical basis addresses
The addresses for the F_DP communication can now be set under "Properties --
DP slave". Double click on the Profibus slave NCU to open the properties window
in which the tab "F Configuration" must be selected.
© Siemens AG 2015 All Rights Reserved
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) - - 10.2015 Edition
7.4 Safety- -related CPU- -CPU communication (F_DP communication)
Connecting Sensors/Actuators
7-243