14
Chapter 4. Communication
Consecutive data read command (RS command)
This command reads data from consecutive addresses. This command can read and
return data from consecutive addresses in one message starting from the specified
read start address.
z
Command message
Example of reading the present operating status
z
Response message
0
Normal end (reading of single data record)
0
Normal end (reading of multiple data records)
0 0
Abnormal end
X X
The end code (error) is entered in place of XX.
(2)(1) (3)
(1) End code
(2) Data delimiter
(3) Data 1
(4) Data 2 to (n−1)
(5) Data n
,
(1) (2) (3) (4) (5)
, , ,
(2) (2)
(1)
(2)(1) (3) (4)
Application layer
(1) Command
(2) Data delimiter
(3) Address
(4) Read count
R
3S , 3 0 3 W , 1
(2)
4 - 5 Description of Commands