Parameter Communication Address
‑8‑
Parameter Group No.
Communication Access
Address
Modified RAM Parameter
Address Through
Communication
F0 to FE 0xF000 to 0xFEFF 0x0000 to 0x0EFF
A0 to AF 0xA000 to 0xACFF 0x4000 to 0x4CFF
U0 0x7000 to 0x70FF
‑
U3
0x7300 to 0x73ff
‑
U4
0x7400 to 0x74ff
‑
U5
0x7500 to 0x75ff
‑
Parameter groups have the following restrictions:
● Group FF: Parameters cannot be read or changed.
● Groups U0, U4, and U5: Parameters can be read, but cannot be changed. Group
U3: Parameters can be read and changed.
● 1000H and 8000H are communication addresses specific to Modbus.
● Only the write operation can be performed on communication RAM addresses.
They are invalid addresses during the read operation.
1.3 Modbus-Specific Parameter Communication Addresses
Table 1–1 Modbus‑specific parameter communication addresses
Para. Address
Description
Communication
frequency
reference 1
1000H
Communication setting value (decimal)
–10000 to +10000
Communication setting values correspond to
percentages. +10000 and –10000 correspond to
+100.00% and –100.00% respectively.
For frequency data, this percentage is relative to
the maximum frequency (F0‑10). For torque data,
this percentage is F2‑10 (Digital setting of torque
upper limit).
Communication
frequency
reference 2
7310H
Set F8‑64 to choose Hz or RPM as the unit.
When F8‑64 is set to 0, the unit is Hz. The decimal
place is determined by F0‑22. For example, when
F0‑22 is set to 2, the decimal number 1000 means
that the frequency reference is 10.00 Hz.
When F8‑64 is set to 1, the unit is RPM. For
example, the decimal number 1000 means that
the speed reference is 1000 RPM.
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