Batch read (command: 17)
Read extended file register (R) in 1-point units.
Message format
The following shows the message format of the request data and response data of the command.
■Request data
(ASCII code)
Block No.
Device number
(Binary code)
Device number
Block No.
■Response data
The data for the number of device points are stored.
The order of data differs depending on the ASCII code or binary code. (Page 402 Read data, write data)
Data specified by request data
■Device number
Specify the head device of the extended file register to be read. (Page 418 Device number)
■Block number
Specify the block number of the extended file register to be read. (Page 418 Block number)
■Number of device points
Specify the points of extended file register to be read.
Specify '00H' when the number of device points is 256 points. (Page 402 Number of device points)
Number of device
0
0
points
30
30
H
H
Number of device
points
00
H
18 COMMUNICATING USING 1E FRAMES
18.5 Read and Write Extended File Register
18
419