Basics Of Program Execution; Programming The Cpu; Events And Obs - Siemens SIMATIC S7-1500 System Manual

Basics of program execution

10.1

Programming the CPU

Hardware and software requirements
Your PG/PC is connected to the SIMATIC Drive Controller over the PROFIBUS or PROFINET
interface.
To configure and program the SIMATIC Drive Controller, you require:
• SIMATIC STEP 7 Professional, V16 or higher
• For programming the safety program of the F-CPU "STEP 7 Safety Advanced" as of V16
• For the configuration of the SINAMICS Integrated , the SINAMICS Startdrive option
package as of V16 in the Basic or Advanced version. Startdrive Advanced has additional
engineering functions compared to Startdrive Basic, such as a safety acceptance test.
Points to note
The function blocks for the use of time-based IO (TIO instructions) are not supported by the
X142 interface. We therefore recommend using the technology objects measuring input,
output cam or cam track for the timer DI/DQ.
10.2

Events and OBs

Response to triggers
The occurrence of a trigger results in the following reaction:
• If the event comes from an event source to which you have assigned an OB, this event
triggers the execution of the assigned OB. The event enters the queue according to its
priority.
• If the event comes from an event source to which you have not assigned an OB, the
default system reaction is executed.
Note
Some event sources, such as startup, pull/plug, exist even if you do not configure them.
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SIMATIC Drive Controller
System Manual, 11/2023, A5E46600094-AD