Toshiba TOSVERT VF-S15 series option unit Function E6581830 - Manual (Page 47)

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6.10. Instructions
1.Programming instructions
1.1 Since the buffer memory data of the master station is kept transferred (refreshed)
to/from the inverters, the TO instruction need not be executed every scan in
response
to data write or read requests.
The execution of the TO instruction every scan does not pose any problem.
1.2 If the FROM/TO instruction is executed frequently, data may not be written reliably.
When transferring data between the inverter and sequence program via the buffer
memory, perform the handshake to confirm that data has been written without error.
2. Operating and handling instructions
2.1 Command only from the programmable controller can be accepted during operation
from CC-Link communication.
The run command from external and parameter unit is ignored.
2.2 If the station number of two or more inverters is the same, wrong data will be
transferred and normal communication cannot be made.
2.3 If a network error (controller fault , an open CC-LINK dedicated cable, etc)
continues past the time set in c100 during CC-Link operation, it is recognized
as a communication error and the operation of the inverter follows the setting
of c101.
2.4 When the programable controller (master) is reset or the power supply of the
programable controller (master) is turned off during CC-Link operation,
data communication stops and an inverter follows the setting of c101.