YASKAWA J1000 Technical Manual

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Writing to Multiple Registers
Function code 10h allows the user to write multiple drive MEMOBUS/Modbus registers with one message. This process works
similar to reading registers, i.e., the address of the first register that is to be written and the data quantity must be set in the
command message. The data to be written must be consecutive so that the register addresses are in order, starting from the
specified address in the command message. The data order must be high byte, then lower byte.
The following table shows an example of a message where a forward operation has been set with a frequency reference of
60.0 Hz for the slave 1 drive.
Command Message Response Message (normal) Response Message (fault)
Slave Address 01H Slave Address 01H Slave Address 01H
Function Code 10H Function Code 10H Function Code 90H
Starting No.
Upper 00H
Starting No.
Upper 00H Error Code 02H
Lower 01H Lower 01H
CRC-16
Upper CDH
Data Quantity
Upper 00H
Data Quantity
Upper 00H Lower C1H
Lower 02H Lower 02H
Number of Bytes 04H
CRC-16
Upper 10H
Starting Data
Upper 00H Lower 08H
Lower 01H
Next Data
Upper 02H
Lower 58H
CRC-16
Upper 63H
Lower 39H
Note: For the number of bytes in the command message, take double the number of the data quantity.
C.9 Message Examples
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YASKAWA ELECTRIC SIEP C710606 31B YASKAWA AC Drive – J1000 Technical Manual
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YASKAWA J1000 Specifications

General

Series	J1000
Voltage Class	200V, 400V
Frequency	50/60 Hz
Enclosure Rating	IP20
Enclosure Type	Open type
Voltage	200-240V, 380-480V
Control Method	V/f control
Overload Capacity	150% for 60 seconds
Protection	Overcurrent, Overvoltage, Undervoltage, Overheat, Ground Fault, Short Circuit
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overheating, Short Circuit
Humidity	5-95% (non-condensing)
Enclosure	IP20
Input Voltage	200-240V, 380-480V