Communication
‑700‑
else
{
crc_value=crc_value>>1;
}
}
}
return (crc_value);
}
Definition of communication parameter addresses:
R/W parameter (some parameters cannot be modified as they are manufacturer‑
specific parameters or for monitoring purpose only.)
4.1.4 Parameter Address Expression Rules
The parameter group number and parameter number are used to express a
parameter address.
High‑order bytes: F0 to FF (group F), A0 to AF (group A), and 70 to 7F (group U)
Low‑order bytes: 00 to FF
For example, the communication address of F3‑12 is expressed as 0xF30C.
Group FF: Parameters cannot be read or modified. Group U: Parameters are ready‑
only and cannot be modified.
Some parameters cannot be modified when the AC drive is running. Some parameters
cannot be modified regardless of the status of the AC drive. Modify a parameter
according to its range, unit, and description.
Parameter Group No.
Communication Access
Address
Modified RAM Parameter
Address Through
Communication
F0 to FE 0xF000 to 0xFEFF 0x0000 to 0x0EFF
A0 to AC 0xA000 to 0xACFF 0x4000 to 0x4CFF
U0 0x7000 to 0x70FF
B0 to B6 0xB000 to 0xB6FF 0x5000 to 0x56FF
Note
Frequent storage to the EEPROM reduces its service life. Therefore, in communication
mode, change values of certain parameters in RAM rather than storing the setting.