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6
Communications Specifications
Item
Baud rate
Access mode
Transmission cycle
Max. transmission distance
Data length
Max. number of slaves
* 1. The baud rate is 4 Mbps for MECHATROLINK-I, and 10 Mbps for
MECHATROLINK-II.
* 2. For MECHATROLINK-I, a cycle is 2 ms. For MECHATROLINK-II, a
cycle is 1 ms to 8 ms for a 32-byte data transmission, and 500 µs to 8
ms for a 17-byte data transmission.
* 3. For MECHATROLINK-I, only a 17-byte data transmission can be
selected.
* 4. The maximum number of connectable stations changes depending on
the types and settings of the host controller, baud rate, or communica-
tions cycle. For details, refer to the manuals of your controller.
Communications cycle: Integral multiple of transmission cycles
(depending on the host controller settings).
Example: If the host controller is an MP2300
• For MECHATROLINK-II (32-byte transmission,
2-ms communications cycle): 21 stations max. (21 slaves can be
set, but then the maximum number of connectable Inverters will
be 16.)
• For MECHATROLINK-II (32-byte transmission,
1-ms communications cycle): 9 stations max.
• For MECHATROLINK-II (17-byte transmission,
1-ms communications cycle): 15 stations max.
• For MECHATROLINK-I: 14 stations max.
* 5. At the maximum transmission distance of 50 m, the maximum number
of slaves is 15.
*1
4 Mbps or 10 Mbps
Start-stop synchronization, master/slave method
*2
500 µs to 8 ms
*5
50 m
17-byte data transmission or 32-byte data transmission
*4 *5
30
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Contents
*3
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