6
-82
n
DSR
Message
An
example of command/response messages is given below.
Reading
Storage
Register
Contents
(Function
Code:
03
Hex)
Read
the contents of the storage register only for specified quantities whose addresses are consecutive, starting
from
a specified address. The contents of the storage register are separated into higher place 8 bits and lower
place
8 bits, and comprise the data within response messages in address order.
The
following table shows message examples when reading status signals, error details, data link status, and
frequency
references from the slave 2 Inverter.
Command
Message
Response
Message
(Normal
Meesage)
Response
Message
(Error
Message)
Slave
Address
02H
Slave
Address
02H
Slave
Address
02H
Function
Code
03H
Function
Code
03H
Function
Code
83H
Start
Address
(register
number)
Higher
place
00H
Number
of attached data
bytes
08H
Error
code
03H
Lower
place
20H
Lead
stor-
age
register
Higher
place
00H
CRC-16
Higher
place
F1H
Quantity
(10H
max.)
Higher
place
00H
Lower
place
65H
Lower
place
31H
Lower
place
04H
Next
stor-
age
register
Higher
place
00H
Note The
MSB of the function code will be
set
to 1 when an error occurs.
CRC-16
Higher
place
45H
Lower
place
00H
Lower
place
F0H
Next
stor-
age
register
Higher
place
00H
Lower
place
00H
Next
stor-
age
register
Higher
place
01H
Lower
place
F4H
CRC-16
Higher
place
AFH
Lower
place
82H
Содержание SYSDRIVE 3G3RV
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