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F12.0x group: MODBUS slave parameters
-slave selection
Code (Addr.)
Name
F12.00
(0x0C00)
Master-slave choice
STOP
0: Slave
When the drive is used as a slave, the communication address is set by parameter [F12.01]. At this point, the drive accepts commands from
the host on the communication network. And according to the parameter [F12.04] setting, select whether to reply data when writing.
1: Host
The drive acts as the host and sends the host's data to the communication network through broadcast commands. All slaves receive host
commands.
Code (Addr.)
Name
F12.01
Modbus
(0x0C01)
communication
STOP
address
Note: If 0 is set, the drive will not respond to MEMOBUS communication.
When the host computer (master station) performs MEMOBUS communication with the drive, set the slave address to the drive. Please set a value other
than F12.01=0.
Do not conflict with the set slave address.
Code (Addr.)
Name
F12.02
Communication baud
(0x0C02)
rate selection
STOP
0:1200 bps
1:2400 bps
2:4800 bps
3:9600 bps
4:19200 bps
5:38400 bps
6:57600 bps
Code (Addr.)
Name
F12.03
(0x0C03)
Modbus data format
STOP
Note: If the data format settings are different, communication may not be possible.
0: (N, 8, 1) no parity, data bits: 8, stop bits: 1
1: (N, 8, 1) even parity, data bits: 8, stop bits: 1
2: (N, 8, 1) odd parity, data bits: 8, stop bits: 1
3: (N, 8, 1) no parity, data bits: 8, stop bits: 2
4: (N, 8, 1) even parity, data bits: 8, stop bits: 2
5: (N, 8, 1) odd parity, data bits: 8, stop bits: 2
Code (Addr.)
Name
F12.04
Modbus transmission
(0x0C04)
response processing
RUN
This parameter selects whether the drive responds when the host computer issues a write operation command to the drive. If the host computer needs the
drive to reply the information, the drive will occupy the communication bus in a time-sharing manner. When doing communication control, the host computer
needs to reserve enough time to reply the information to the drive. If the host computer does not need the drive to reply the information, only the command
is sent to the drive, and the write operation can be selected without response to improve the utilization efficiency of the communication bus. This parameter
is valid only for write operations and has no effect on read operations.
0: The write operation has a response
1: Write operation has no response
Modbus communication response delay
Code (Addr.)
Name
Content
V/F SVC
Set the drive Modbus communication host or slave
unication address
Content
V/F SVC
Set the communication slave address of the drive
election
Content
V/F SVC
Set the baud rate when Modbus communication
Content
V/F SVC
Select the communication check used by MEMOBUS communication
Content
V/F SVC
Select the communication check used by MEMOBUS communication
Content
173
Parameter details
Factory setting
(Setting range)
0
（0~1）
Factory setting
(Setting range)
1
（1~247）
Factory setting
(Setting range)
3
（0~6）
Factory setting
(Setting range)
0
（0~5）
Factory setting
(Setting range)
0
（0~1）
Factory setting
(Setting range)
AC10 Series Frequency Inverter Technical Manual
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