Precautions - Mitsubishi Electric MELSEC-Q Series User Manual

Station No.0
(Master station)

5.1.2 Precautions

(1) Adding slave stations
(2) Connecting devices to the same network
(b) Station number and connection position
Modules can be connected in any order regardless of the station number.
When the device transmits data, delay time will occur. Therefore, it is
recommended to connect servo amplifiers adjacently.
Station No.17
(c) Cascade connection
Up to 4-layer connection is available for the cascade connection.
However, it depends on the switching hub specification.
REMARK
For wiring method, refer to the "MELSEC-Q QD77GF Simple Motion Module User's
Manual (Positioning Control)".
Do not connect slave stations more than the number of stations that can be controlled.
If a slave station is added to a system having the maximum number of stations that can
be controlled, all stations will fail and data link cannot be performed.
Do not connect an Ethernet device (e.g. personal computer) other than CC-Link IE Field
Network device to the switching hub used on CC-Link IE Field Network. Doing so will
cause timeout in the master station, resulting in disconnection of all the stations.
Chapter 5 SYSTEM CONFIGURATION
Station No.19
Switching hub
Up to 4-layer
cascade connection
5 - 4
Station No.3 Station No.2