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MEMOBUS Message Example
An example of MEMOBUS command/response messages is given below.
Reading Inverter Memory Register Contents
The content of maximum 16 inverter memory registers can be readout at a time.
Among other things the command message must contain the start address of the first register that is to be read
out and the quantity of registers that should be read out. The response message will contain the content of the
first and the consecutive number of registers that has been set for the quantity.
The contents of the memory register are separated into higher 8 bits and lower 8 bits.
The following tables show message examples when reading status signals, error details, data link status, and
frequency references from the slave 2 Inverter.
Command Message
Response Message
(During Normal Operation)
Response Message
(During Error)
Slave Address
02H
Slave Address
02H
Slave Address
02H
Function Code
03H
Function Code
03H
Function Code
83H
Start
Address
Higher
00H
Data quantity
08H
Error code
03H
Lower
20H
1st storage
register
Higher
00H
CRC-16
Higher
F1H
Quantity
Higher
00H
Lower
65H
Lower
31H
Lower
04H
Next stor-
age register
Higher
00H
CRC-16
Higher
45H
Lower
00H
Lower
F0H
Next stor-
age register
Higher
00H
Lower
00H
Next stor-
age register
Higher
01H
Lower
F4H
CRC-16
Higher
AFH
Lower
82H
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