Operating Modes - Siemens SIMATIC S7-1500 Function Manual
Update 3
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Also See for SIMATIC S7-1500:
- System manual (523 pages) ,
- Function manual (362 pages) ,
- Manual (188 pages)
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3.20.4
Operating modes
This section examines the behavior of Motion Control in each operating mode, and in the
transitions between operating modes. A general description of the operating modes can be
found in system manual S7-1500.
Operating modes and transitions
The CPU has three operating modes: STOP, STARTUP and RUN. The following figure
shows the operating modes and the operating mode transitions:
STOP mode
In STOP mode the user program is not processed and al process outputs are disabled. Thus
no Motion Control jobs are executed.
The technology data blocks are updated.
STARTUP mode
Before the CPU starts processing of the cyclical user program, the startup OBs are
processed one time.
In STARTUP mode, the process outputs are disabled. Motion Control jobs are rejected.
The technology data blocks are updated.
RUN mode
The user program is processed in RUN mode.
In RUN mode, the programmed Motion Control jobs are cyclically called and processed.
The technology data blocks are updated.
S7-1500 Motion Control V13 Update 3
Function Manual, 07/2014, A5E03879256-AC
Basics
3.20 Operational sequence
83
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