Omron V640 User Manual

79
CIDRW System
User’s Manual
SECTION 4
When SECS is Not Used
SECTION 4
Reading from/Writing to ID Tags
Command
Communications with the Host Device
Communicate with the host device only after confirming that the CIDRW Controller has started. Also, unstable signals
may occur at the host interface when the CIDRW Controller is started. When initializing operation, clear the reception
buffer at the host device or take other suitable methods to clear unwanted signals.
Command code list
Name Value Function See
READ 0100 When this command is received, the system communicates with the ID Tag, and
reads the specified page(s) of data. Any pages up to a maximum of 16 can be
selected.
p.80
WRITE 0200 When this command is received, the system communicates with the ID Tag, and
writes the specified page(s) of data. Any pages up to a maximum of 16 can be
selected.
p.81
Same Write 0300 When this command is received, the system communicates with the ID Tag, and
writes the same data in page units to the specified pages. Up to 17 pages, which is
the maximum number of pages for an ID Tag, can be specified.
p.83
Byte Write 0400 When this command is received the system communicates with the ID Tag, and
writes data to the area specified by a first address and number of bytes. A maximum
of 128 bytes can be specified.
p.84
TEST 10 Sends received data to the host device. p.85
NAK 12 Sends the response made immediately before again. p.86
Noise measurement 40 Measures the noise in the vicinity of the CIDRW Head. p.86
RESET 7F Resets the Amplifier Unit. p.86
Response code list
Type
Response
code
Name Description
Normal end 00 Normal end Command execution is completed normally.
Host communi-
cations error
14 Format error There is a mistake in the command format.
(E.g. the command code is undefined, or the page or address spec-
ification is inappropriate.)
Communica-
tions error
70 Communications error Noise or another hindrance occurs during communication with an
ID Tag, and communications cannot be completed normally.
71 Verification error Correct data cannot be written to an ID Tag.
72 No Tag error Either there is no ID Tag in front of the CIDRW Head, or the CIDRW
Head is unable to detect the ID Tag due to environmental factors
(e.g. noise).
7B Outside write area error Writing is not completed normally.
7E ID system error (1) The ID Tag is in a status where it cannot execute command pro-
cessing.
7F ID system error (2) An inapplicable ID Tag has been used.

Omron V640 Specifications

General

Brand	Omron
Model	V640
Category	Conference System
Language	English