Communication Speed - Mitsubishi Electric MELSEC iQ-RJ71EN71 User Manual

Communication speed

This section provides the results of communication speed measured using the IP packet transfer function. Use the results as
a reference.
When request source and destination devices are connected to a CPU module
The results are based on measurement when FTP communications are performed with four modules connected in star
topology.
■System configuration
Ethernet device (request source device)
<FTP client>
Ethernet
Device
Ethernet device (request source
device)
<FTP client>
Ethernet device (request destination
device)
<FTP server>
Programmable controller
■Measurement result of the communication speed
The following table lists the time that takes until a file is read from a request source device to a request destination device.
Size of a file to be communicated
1K bytes
50K bytes
100K bytes
1M bytes
1 FUNCTIONS
60
1.3 IP Packet Transfer Function
Description
CPU
OS
Ethernet board
FTP client application
CPU
OS
Ethernet board
FTP server application
CPU module
CC-Link IE Field Network
Ethernet device (request destination device)
<FTP server>
Ethernet
 
Intel Core 2 Duo processor 2.00GHz
 
Microsoft Windows 7 Professional Operating System
1000BASE-T
FFFTP
 
Intel Core i5 Duo processor 2.67GHz
 
Microsoft Windows 7 Professional Operating System
1000BASE-T
FileZilla Server
• R04CPU
• Sequence scan time: 1ms
• Cyclic transmission: 128 points assigned to each station for the RX and RY,
256 points assigned to each station for the RWw and RWr
• Transient transmission: N/A
Time
10ms
300ms
600ms
4000ms