144
10.3 Effect on the Scan Time
Use the following formula to calculate the increase in scan time in data logging.
[Increase in the scan time]
KM1 + (N1 × KM2) + (N2 × Km3) [µs]
• N1: Number of settings
• N2: Device points of all internal user devices (total points of setting No.1 to No.10)
10.4 Processing Time for Each Instruction
The table below shows operation processing time values of the instructions that are explained in this manual. (
Page 145, CHAPTER 11)
For the operation processing time of LCPU, refer to the following.
MELSEC-Q/L Programming Manual (Common Instruction)
CPU module KM1 KM2 KM3
L02CPU 63.0 50.0 0.45
L26CPU-BT 42.0 47.0 0.29
Category Instruction
Processing time (µs)
L02CPU L26CPU-BT
Minimum Maximum Minimum Maximum
Data logging instruction
LOGTRG 117.500 117.900 93.400 93.800
LOGTRGR 24.400 24.700 19.200 19.500
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