9.2 Details of Function Codes
9-121
Chap. 9 FUNCTION CODES
Parity check (y06)
Data for y06 Parity
0
None
(2 stop bits for Modbus
RTU)
1
Even parity
(1 stop bit for Modbus RTU)
2
Odd parity
(1 stop bit for Modbus RTU)
y06 or y16 specifies the property of the parity
bit.
For FRENIC Loader, no setting is required
since Loader automatically sets the even
parity.
3
None
(1 stop bit for Modbus RTU)
Stop bits (y07)
Data for y07 Stop bit(s)
0 2 bits
1 1 bit
y07 or y17 specifies the number of stop bits.
For FRENIC Loader, no setting is required
since Loader automatically sets 1 bit.
For the Modbus RTU protocol, no setting is
required since the stop bits are automatically
determined associated with the property of
parity bits.
No-response error detection time (y08)
Data for y08 No-response error detection
0 No detection
1 to 60 1 to 60 s (detection time)
y08 or y18 specifies the timeout period for
receiving a response from the host equipment
(such as a computer or PLC) in RS-485
communication, in order to detect network
breaks. This applies to the machinery that
accesses the host equipment at the
predetermined intervals.
If the response timeout occurs, the inverter
starts communications error processing.
For communications error processing, refer to
y02.
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