
310
(3) Execution of multiple programs
Use the following formula to calculate the increase in scan time when executing multiple programs.
[Increase in the scan time]
Number of program files to be executed × KM1 [ms]
(4) Removal and insertion of an SD memory card
The following shows the increase in scan time when an SD memory card is inserted or removed.
(5) Scan time measurement
Use the following expression to calculate the increase in scan time when the scan time is set to be measured.
[Increase in the scan time]
KM1 + number of branch instructions
*1
× KM2 [µs]
*1
The number of branch instructions is a total of the following pointer branch instructions and structure creation
instructions, which are executed between a start point and an end point of the scan time measurement.
• Pointer branch instructions: CJ, SCJ, JMP, GOEND
• Structure creation instruction: CALL(P), FCALL(P), ECALL(P), EFCALL(P), XCALL(P), BREAK, NEXT, RET
(6) A series CPU module compatibility setting
The following shows the increase in scan time when an A series CPU module compatibility setting is enabled.
CPU module
KM1
L02CPU
0.024
L26CPU-BT
0.02
CPU module
Increase in scan time
When an SD memory card is inserted
When an SD memory card is
removed
L02CPU
0.52 [ms]
0.49 [ms]
L26CPU-BT
0.31 [ms]
0.23 [ms]
CPU module
KM1
KM2
L02CPU
40.0
1.7
L26CPU-BT
40.0
3.0
CPU module
Increase in scan time
L02CPU
40 [µs]
L26CPU-BT
34 [µs]
Summary of Contents for L02CPU
Page 1: ......
Page 2: ......
Page 13: ...11 Memo ...
Page 78: ...76 Memo ...
Page 226: ...224 Memo ...
Page 318: ...316 To the next page ...
Page 320: ...318 To the next page ...
Page 322: ...320 To the next page ...
Page 324: ...322 To the next page ...
Page 326: ...324 To the next page ...
Page 335: ...333 Memo ...
Page 339: ......