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How to obtain scan execution times in M340 and Quantum PLC

Article available in these languages: Japanese

Issue
What are scan execution times in M340 and Quantum PLC

NOTE (definitions):
- The amount of time it takes to perform one cycle is referred to as scan time
- Cycle means perform all configured, programmed and enabled activities in a fixed sequence as fast as possible

Product Line
Unity Pro (software)
M340, Quantum (PLC)

Environment
System Addressing

Cause
Trouble shooting purpose

Resolution
Scan execution times can be obtained using system objects:

  • %SW30    last scan
  • %SW31    longest scan
  • %SW32    shortest scan

You can use an animation table to look at the values:

Screenshot of animation table

You can also see those values in the PLC screen when online with the PLC

PLC Screen demo

Schneider Electric Nigeria

How to obtain scan execution times in M340 and Quantum PLC

Article available in these languages: Japanese

Issue
What are scan execution times in M340 and Quantum PLC

NOTE (definitions):
- The amount of time it takes to perform one cycle is referred to as scan time
- Cycle means perform all configured, programmed and enabled activities in a fixed sequence as fast as possible

Product Line
Unity Pro (software)
M340, Quantum (PLC)

Environment
System Addressing

Cause
Trouble shooting purpose

Resolution
Scan execution times can be obtained using system objects:

  • %SW30    last scan
  • %SW31    longest scan
  • %SW32    shortest scan

You can use an animation table to look at the values:

Screenshot of animation table

You can also see those values in the PLC screen when online with the PLC

PLC Screen demo

 

 

 

Schneider Electric Nigeria

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