Communication
‑692‑
4 Communication
4.1 Parameter Communication Address
4.1.1 Parameter Introduction
The AC drive supports six communication protocols: Modbus‑RTU, CANopen, CANlink,
PROFIBUS‑DP, PROFINET, and EtherCAT. The user‑programmable card and point‑to‑
point communication are derived from the CANlink protocol. The host controller
enables users to control, monitor, and change parameters of the AC drive through
these protocols. The communication data is classified into parameter data and non‑
parameter data. The non‑parameter data includes operation commands, operation
status, operation parameters, and alarm information.
Parameter data
Para. Data Group F
(read/write)
F0, F1, F2, F3, F4, F5, F6, F7, F8, F9, FA, FB, FC, FD, FE, FF
Group A
(read/write)
A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, AA, AB, AC, AD, AE,
AF
Group B
(read/write)
B0, B1, B2, B6
The definition of parameter data communication address is as follows:
1. Parameter data read through communication
For groups F0 to FF and A0 to AF, the high‑order 8 bits of the communication
address indicate the group number and the low‑order 8 bits indicate the parameter
number.
Example:
A communication address of F0‑16 is F010H, where F0H represents group F0 and
10H is the hexadecimal data format of serial number 16 in the group.
A communication address of AC‑08 is AC08, where ACH represents group AC and
08H is the hexadecimal data format of serial number 8 in the group.
2. Parameter data written through communication
For groups F0 to FF, the high‑order 8 bits in the communication address are 00 to
0F or F0 to FF, which is decided by whether the high‑order 8 bits are written to
EEPROM. The low‑order 8 bits indicate the parameter number in the group.
Take writing F0‑16 as an example.
If it is not written to EEPROM, the communication address is 0010H.
If it is written to EEPROM, the communication address is F010H.
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