Parameter Communication Addresses
‑13‑
Writing basic function parameters and saving them upon power failure indicate
frequent operations on the EEPROM, which reduces its service life. Therefore, you can
modify some basic function parameters in the RAM through communication without
storing them.
For parameters in group F, you can change F in higher bits of the parameter address
into 0 to obtain the corresponding RAM address. For example, the communication
RAM address of F3‑12 is 0x030C.
For parameters in group A, you can change A in higher bits of the parameter address
into 4 to obtain the corresponding RAM address. For example, the communication
RAM address of A0‑05 0x4005.
For parameters in group B, you can change B in higher bits of the parameter address
into 5 to obtain the corresponding RAM address. For example, the communication
RAM address of B0‑05 is 0x5005.
For parameters in group C, you can change C in higher bits of the parameter address
into 6 to obtain the corresponding RAM address. For example, the communication
RAM address of C0‑05 0x6005.
Parameter Groups
Access Address Parameter Address in RAM
F0 to FE 0xF000 to 0xFEFF 0x0000 to 0x0EFF
A0 to AF 0xA000 to 0xACFF 0x4000 to 0x4CFF
B0 to BF 0xB000 to 0xBFFF 0x5000 to 0x5FFF
C0 to CF 0xC000 to 0xCFFF 0x6000 to 0x6FFF
H0 to H6 0x8000 to 0x88FF
‑
U0 to U3 0x7000 to 0x73FF
‑
L0 to LD 0x9000 to 0x9DFF
‑
Note the following:
● Parameters in group FF cannot be read or modified
● Parameters in groups U0 and U2 are read‑only; parameters in group U3 can be
read and modified.
● 1000H, 2000H to 2004H, and 3000H are Modbus‑specific communication
addresses.
1.3 Modbus-specific Parameter Communication Addresses
Table 1–1 Modbus‑specific parameter communication addresses
Parameter Address Parameter Description Parameter Address Parameter Description
1000H Communication reference
(decimal)
–10000 to +10000
1010H PID reference
1001H Running frequency 1011H PID feedback
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