5.3 Description of Function Codes 5.3.12 y codes (Link functions)
Parity selection (y06, y16)
No parity bit
(2 bits of stop bit for Modbus RTU)
Even parity
(1 bit of stop bit for Modbus RTU)
Odd parity
(1 bit of stop bit for Modbus RTU)
No parity bit
(1 bit of stop bit for Modbus RTU)
Stop bit selection (y07, y17)
Sets the stop bit.
• For Modbus RTU:
The value does not need to be set since it is automatically
determined in conjunction with the parity bit.
Communication time-out detection timer (y08, y18)
Sets the period from the time the system detects a
communication time-out (for any reason such as disconnection
in equipment that periodically accesses the station within a
specific time) during operation using RS-485 communication,
until the time the system processes communication errors.
Refer to y02, y12 for details on communication error
processing.
Disconnection is not
detected.
Detection time from 1 to
60 (s)
Response interval time (y09, y19)
Sets the period from the time the system receives a request from host equipment (computer or PLC, etc.) until the
time that a response is returned after receipt of the request is complete. Even with host devices for which processing
from the completion of transmission to the completion of receipt preparation is delayed, the timing can be aligned
by setting the response interval time.
• Data setting range: 0.00 to 1.00 (s)
T1 = Response interval time + α
α: Processing time inside the inverter. This differs based on the timing and command.
Refer to the "RS-485 Communication User's Manual" for details.
To set an inverter by the inverter supporting loader via the RS-485 communication, consider the
performance and condition of the computer and converter (such as USB-RS-485 converter).
(Some converters monitor communication status and switch transmission and reception with timer.)
Protocol selection (y10, y20)
Selects the communication protocol.
Fuji general-purpose
inverter protocol
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