3-4SectionCommand Types and Responses
37
3-4-3 Auto Read (AR)
This
is a command to wait for the approach of the DC, and then read the data.
After local communications are completed, the ID Controller returns the
response. The host computer cannot send commands to the other R/W Head
until the response has been received.
Command Format
AR.A/H1/2XXXXXX
∗
For 1 to 1 Procedure
Auto
read
Header
ASCII/HEX code specification
A: ASCII code
H: HEX code
R/W Head no.
Start address no. specification range.
Specify the number of bytes to be read in HEX code.
*The number of bytes that can be read in one operation is as
follows:
ASCII code specification: 256 bytes (256 characters)
HEX code specification: 128 bytes (256 characters)
Note:
Refer to the previous page for information on the set
-
ting values.
@ Unit No. A R A/H 1/2 X XXXXX
∗
Auto read
Header
ASCII/HEX code specification
A: ASCII code
H: HEX code
R/W Head no.
Start address no. specification range.
FCS
For 1 to N Procedure
Specify
the number of bytes to be read in HEX code.
*The number of bytes that can be read in one operation is as
follows:
ASCII code specification: 256 bytes (256 characters)
HEX code specification: 128 bytes (256 characters)
Note:
Refer to the previous page for information on the set
-
ting values.
00 to 15
Response Format
Header
End
code (see page
48)
00: Normal completion
.......
For 1 to 1 Procedure
Auto
read
Read data (only at normal completion)
AR00XXX X
∗
.......
@ Unit No. A R 0 0 X X X X
∗
Auto read
FCS
For 1 to N Procedure
.......
Read
data (only at normal completion)
End code (see page
48)
00: Normal completion
Header
00 to 15