Yaskawa MP3300iec - Manual (Page 21)

12 MECHATROLINK-III Network Topologies
YASKAWA America, Inc. MP3300iec Hardware Manual YAI-SIA-IEC-7 21
12 MECHATROLINK-III Network Topologies
You can connect the MP3300iec Series Controller and drives or I/O with cascaded connections, star connections, or
mixed cascaded/star network topologies. The following figures show examples of these types of network topologies.
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Cascaded Connection
Cascaded connections allow you to connect one or more series of slave stations from the CPU Unit MECHATROLINK-
III ports. Regardless of whether a single MECHATROLINK-III port is used, as shown in
Figure 9 , or two CPU Unit
MECHATROLINK-III ports are used, as shown in Figure 10 , these are called cascaded connections.
Figure 9
Figure 9 Cascaded Connections Using Only One Port
Figure 10
Figure 10 Cascaded Connections Using Two Ports
Note: 1. Do not connect more than 32 stations up to the final slave station to any one CPU Unit port.
2. The maximum number of stations that you can connect with cascaded connections depends on the communications cycle.
CPU Unit
No terminating resistor is required.
Up to 32 stations, including Servos and I/O
CPU Unit
No terminating
resistor is required.
Up to 62 stations, including I/O
Up to 32 Servo stations
No terminating
resistor is
required.