YASKAWA MP23xxxiec Series, Hardware Manual, Page: 40 / 102

11 MECHATROLINK-II
40 YASKAWA America, Inc. MP2300iec Hardware Manual YAI-SIA-IEC-2R
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Application
Restrictions
Maximum Number of Slave Stations
The number of connectable stave stations in the Master-side network or the extended network is limited by the
MECHATROLINK-II cable length as shown in the table below.
Prohibited Use of Multiple Repeaters
More than one REP2000 cannot be connected in a network. The figure below shows the network examples that must not
be designed.
* 1. The number of connectable slave stations (16 stations for 30m cable length, 15 stations for
50m cable length) includes a REP2000 as a REP2000 applies load for one station.
* 2. Install a terminator on the slave station that is the terminal of the extended network.
Note: 1. Total number of slave stations in a whole network depends on the specifications of Master station.
2. The REP2000 is not included in the total number of slave stations specified in the specifications of
Master station.
3. The minimum distance between stations is 0.5m no matter whether a REP2000 is connected or not.
Classification Cable Length Number of Slave Stations
Master-side Network
*1
30m max. 15 stations max.
50m max. 14 stations max.
Extended-side Network
*2
30m max. 16 stations max.
50m max. 15 stations max.
ions of Master station.