Precautions For System Configuration - Mitsubishi Electric MELSEC iQ-F FX5 Series User Manual

5.3

Precautions for System Configuration

Devices connected to the same network
Do not connect the devices as described below. Doing so may cause the disconnection of all stations.
• A module on CC-Link IE TSN and a device having network types other than an Ethernet device (such as CC-Link IE
Controller Network and CC-Link IE Field Network) are connected to the same network.
• A module on CC-Link IE TSN and an Ethernet device (such as a personal computer), both of which are on different
networks, are connected to one switching hub.
Adding a slave station with no IP address setting
In a line topology, do not connect the slave station with no IP address setting at a place other than the end of the network. A
data link may not be performed in the slave stations after the slave station with no IP address setting.
CC-Link IE TSN/CC-Link IE Field diagnostics
If operations such as the following are performed, the actual network configuration and the network map of the CC-Link IE
TSN/CC-Link IE Field diagnostics may be a mismatch.
Network Operation
configuration
Star topology
Line topology
The actual network configuration and network map can be matched by executing the network map update of
the CC-Link IE TSN/CC-Link IE Field diagnostics. ( Page 144 CC-Link IE TSN/CC-Link IE Field
diagnostics)
Calculation of the total cyclic data size
The following shows the calculation formula of the total cyclic data size. The part of the variable surrounded by double quotes
(" ") is the setting value of "Network Configuration Settings" under "Basic Settings".
Total cyclic data size = 204 + (146  Number of local stations) + (106  Number of remote stations) + (Number of "RX setting"
points  8) + (Number of "RWr setting" points  2) [byte]
5 SYSTEM CONFIGURATION
84
5.3 Precautions for System Configuration
• Powering off and on a slave station or switching hub
• Connecting/disconnecting an Ethernet cable connected to the switching hub
• Disconnecting an Ethernet cable from a slave station and connecting it to another slave station or a switching hub
• Disconnecting more than nine stations, or half the number of slave stations or more in the system
• Changing the network topology when adding a slave station
• Simultaneously powering off/on multiple stations
• Simultaneously connecting/disconnecting Ethernet cables to/from multiple stations (When a data link faulty station returns, a data
link error will occur in all the stations.)
• Disconnecting more than nine stations, or half the number of slave stations or more in the system
• Changing the network topology when adding a slave station