Omron V600 Series Operation Manual page 43

Command Types and Responses
3-4-6 Polling Auto Write (PW)
For 1 to 1 procedure
Polling auto
P
write
Header
Code specification
A: ASCII code
H: HEX code
R/W Head no.
For 1 to N procedure
Polling
@ Unit No. P
auto
write
00 to 15
Header
Code specification
A: ASCII code
H: HEX code
R/W Head no.
Response Format
For 1 to 1 procedure
Polling auto
write
Header
For 1 to N procedure
Polling auto
@
write
00 to 15
Header
Immediately after the host computer sends a polling auto command, the ID Con-
troller returns a response indicating that a command has been received. Subse-
quently, after waiting for the approach of the DC, the ID Controller writes the
data. During this time, the host computer can use subcommands to query the
command processing results. It can also send commands to the other R/W
Head.
1 frame = 266 characters max.
W A/H 1/2 X X
1 frame = 271 characters max.
W A/H 1/2 X X
∗
P w 7 4
End code (see page 48)
74: Command received.
Note: The end code in this case can only be either 74 or
P W 7
Unit No.
X X X X X
Specifies the write data.
*The number of bytes that can be written in one operation is as follows.
ASCII code specification: 256 bytes (256 characters)
HEX code specification: 128 bytes (256 characters)
Start address no. specification range
Note: Addresses 0000 and 0001 are the production date
registration area, and consequently data cannot be
written to these addresses.
X X X X X
Specifies the write data.
*The number of bytes that can be written in one operation is as follows:
ASCII code specification: 256 bytes (256 characters)
HEX code specification: 128 bytes (256 characters)
(When specifying HEX code,specify one byte as two characters.)
Start address no. specification range
host computer communications error.
∗
4 FCS
End code (see page 48)
74: Command received.
Note: The end code in this case can only be either 74 or
host computer communications error.
Section
∗
....... X
....... X FCS
3-4
∗
41