Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual page 913

■Sequence scan synchronization sampling function
When the sequence scan synchronization sampling function is executed, the scan time becomes longer. The increase in scan
time can be calculated by the following formula.
Increase in scan time [s] = (KM1  Number of processing times
*2
) + (KM3  Number of settings
set
*1 The number of processing times indicates the number of times to perform the processing for 64 points of the device that can be
processed at a time. The number of times is calculated by the total number of points of device that has been set n  64. (The decimal
point is rounded up.)
*2 For the device types and number of settings that can be set, refer to the manual for the module used.
*3 The number of modules indicates the total number of modules which has executed this function.
Constant
KM1
KM2
KM3
KM4
KM5
■File batch online change
When the file batch online change is executed, the scan time becomes longer. The increase in scan time [ms] can be
calculated by the following formula.
*1
Condition Calculation formula
(KM1  Number of program files
When SM388 is off
(Program file only)
(KM4  number of write target program files
When SM388 is on
(Program file/FB file/global
label setting file)
*1 For R00CPU, R01CPU, R02CPU, calculate with calculation formula for "when SM388 is on" in the above table. For R00CPU, R01CPU,
R02CPU, the operation setting status is set to "program file/FB file/global label setting file" regardless of the SM388 setting.
*2 This indicates the number of program files which are written to the CPU module.
*3 The largest number of steps for the programs which are performed the file batch online change.
*4 The number of the program files which are performed the file batch online change.
*5 The total number of steps for the program files which are performed the file batch online change.
The number of steps for each program file can be checked [Confirm Memory Size (Offline)] in [Tool] of the
engineering tool.
■Simple CPU communication function
The processing time of the simple CPU communication function (the increase in END processing time for the CPU module)
can be calculated by the following formula.
Processing time of the simple CPU communication function [s] = KM1 + T
• T [s] = KM2 + KM3  (number of bit points to be communicated  16 + number of word points to be communicated) +
n
E
n
• E [s] = KM4 + KM5  (number of bit points to be communicated  16 + number of word points to be communicated)
n
• T
: Simple CPU communication processing time per setting
n
• E
: Additional time when the file register (R, ZR) is used (It is added when the file register (R, ZR) is used.)
n
• n: Number of settings
Condition
KM1
KM2
KM3
KM4
KM5 When the extended SRAM cassette or battery-less option cassette is not used
When the extended SRAM cassette or battery-less option cassette is used
*2
) + (KM4  Number of modules
*2
) + (KM2  Maximum number of steps in programs
*4
) + (KM5  total number of steps in programs
*1
) + (KM2  Total number of points of device that has been
*3
) + KM5
Constant value
8.00
0.42
0.20
24.00
85.00
*3
+ T + ··· + T
1 2
Constant value
60.00
0.90
0.024
1.60
0.10
0.13
Constant value
) + KM3 KM1: 0.018
-3
KM2: 0.06  10
KM3: 0.9
*5
) KM4: 2.34
-3
KM5: 0.06  10
n
APPX
Appendix 9 Processing Time
A
911