Siemens SIMATIC S7-1500 System Manual page 153

Configuring
7.11 Configuring the clock system
Adjust other settings if required – for example times Ti/To for reading in/outputting data in
isochronous mode.
Table 7- 10 Setting options for "Cycle time" in the SINAMICS Integrated clock system
Setting options
Manual
Automatic minimum
Use local send clock [X142]
Send clock of the PROFINET interface
[X150]
152
Note
With these settings, you operate the SINAMICS Integrated as an independent
clock system.
With this setting, you operate the SINAMICS Integrated in isochronous mode
coupled with the clock system of the X142 technology I/Os.
Use this setting if you want to use the technology I/Os isochronously with the
OB servo, for example, for measuring input or output cam applications.
Please note the following:
You cannot operate the X142 technology I/Os in isochronous mode sepa-
•
rately from SINAMICS Integrated.
If you want to operate X142 technology I/Os and SINAMICS Integrated in
•
isochronous mode simultaneously, always set coupled isochronous mode.
Consistency checks ensure that the setting is correct.
With this setting, you operate SINAMICS Integrated in isochronous mode
coupled with PROFINET interface X150. SINAMICS Integrated uses the sys-
tem clock of PROFINET interface X150.
Use this setting if you need to operate the SIMATIC Drive Controller in isoch-
ronous mode at PROFINET IO interface X150, for example, for the connection
of drives or for synchronous operation across PLC.
SIMATIC Drive Controller
System Manual, 11/2019, A5E46600094-AA