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Statements of GX Works2 and the scan time
Does the scan time change when statements are displayed in the Navigation window of GX Works2?
- Category :
Answer
The input method for statements, either "PLC" or "Peripheral", makes a difference.
- If "PLC" is set for statements, they are written into the program memory.
The string [Title], necessary for display in the project view, is also written to the program memory thus increasing
the number of steps.
-> The increase in the steps slightly affect the scan time.
*The scan time is increased by Increase in steps × NOP processing time
*The increase in steps is 3 to 4(It depends on the number of bytes of the statements.).
- If "Peripheral" is set for statements The display of statements in the project view does not affect the scan time
(The addition of the string [Title] does not increase the number of steps.).
- If "PLC" is set for statements, they are written into the program memory.
The string [Title], necessary for display in the project view, is also written to the program memory thus increasing
the number of steps.
-> The increase in the steps slightly affect the scan time.
*The scan time is increased by Increase in steps × NOP processing time
*The increase in steps is 3 to 4(It depends on the number of bytes of the statements.).
- If "Peripheral" is set for statements The display of statements in the project view does not affect the scan time
(The addition of the string [Title] does not increase the number of steps.).
- Product Name
- Engineering Software, MELSEC-Q Series, MELSEC-L Series
- Series
- Software Package (GPP function), CPU, MELSEC-L Series
