5.4 Details of Function Codes
5-275
Details of
Function Codes
F codes
E codes
C codes
P codes
H codes
A codes
b codes
r codes
J codes
d codes
U codes
y01 to y98
Chapter 5 Function Code
Protocol selection (y10, y20)
y10, y20 data Function
0
Modbus RTU protocol
1
FRENIC Loader
protocol
y10 or y20 specifies the communications protocol.
2
Fuji general-purpose
inverter
protocol
y97
Communication Data Storage Selection
A nonvolatile storage in the inverter has a limited number of rewritable times (100,000 to 1,000,000 times).
Saving data into the storage so many times unnecessarily will no longer allow the storage to save data,
causing memory errors.
When the data are frequently re-written via the communications link, saving in the temporary memory is
possible without writing to the nonvolatile storage. Using the temporary storage reduces the number of data
writing times into the nonvolatile storage, preventing memory errors.
When y97 is set to "2," the data stored in the temporary memory are written in the nonvolatile memory.
Changing the y97 data requires simultaneous keying of "
key + / key."
Table 5.4-197
Data for y97 Function
0
Save into nonvolatile storage (Rewritable times limited)
1
Write into temporary storage (Rewritable times unlimited)
2
Save all data from temporary storage to nonvolatile memory
(After saving data, the y97 data automatically returns to "1.")
y98
Bus Function (Operation Selection) (See H30)
For the y98 bus function (operation selection) setting, see the description of function code H30.
To Next Page
Loading...
