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FTP File Transfer Time Section 4-8
4-8 FTP File Transfer Time
File transfers using FTP can require 30 or 40 minutes depending on the
capacity of the file. Approximate file transfer time are provided in the following
table for reference.
All times are in seconds unless otherwise specified.
■ CS1 CPU Units/CJ1 CPU Units
■ CS1-H CPU Units/CJ1-H CPU Units
Note 1. The above times assume that the Fixed Peripheral Servicing Time in the
PLC Setup is set to the default value of 4%.
2. If the Fixed Peripheral Servicing Time in the PLC Setup is increased, FTP
files will be transferred faster.
File system Memory Card EM File Memory
CPU Unit status Operating mode PROGRAM RUN PROGRAM RUN
Cycle time --- 20 ms --- 20 ms
Transfers using
put
1 KB 0.7 s 6.0 s 0.4 s 2.9 s
30 KB 4.5 s 38.3 s 2.5 s 21.5 s
60 KB 7.4 s 72.1 s 5.0 s 44.7 s
120 KB 14.4 s 141.4 s 11.0 s 120.8 s
Transfers using
get
1 KB 0.3 s 1.4 s 0.2 s 0.8 s
30 KB 2.8 s 19.3 s 1.9 s 11.4 s
60 KB 4.9 s 37.6 s 3.8 s 26.7 s
120 KB 9.6 s 75.7 s 8.6 s 68.2 s
File system Memory Card EM File Memory
CPU Unit status Operating mode PROGRAM RUN PROGRAM RUN
Cycle time --- 20 ms --- 20 ms
Transfers using
put
1 KB 0.3 s 1.9 s 0.2 s 1.0 s
30 KB 1.5 s 11.5 s 0.8 s 6.5 s
60 KB 2.6 s 21.4 s 1.5 s 12.8 s
120 KB 4.9 s 41.2 s 3.2 s 27.4 s
Transfers using
get
1 KB 0.2 s 0.6 s 0.2 s 0.4 s
30 KB 1.3 s 6.5 s 1.1 s 3.8 s
60 KB 2.5 s 12.6 s 1.9 s 7.6 s
120 KB 4.9 s 24.9 s 4.2 s 20.4 s