Data Fill (Df) - Omron V670-H11 User Manual

5-6-4 Data Fill (DF)

Write 1 or 2 bytes of the same data into an area specified by the first address and the last address of tag memory. Written data is speci-
fied by a hexadecimal code.
<Command>
Data
Command Communication
desig-
code designation
nation
"DF"
Communication designation
Data designation
Antenna designation
First address of written area
Last address of written area
Written data
<Response>
Command Termination Retrans-
code code mission
"DF" "00" flag
Example: Writing a fixed data ("00FF") from the address 0000h to 007Fh
(Single trigger, writing 2 bytes)
Sent data: DFSTW 1 0 0 0 0 0 0 7 F 0 0 F F * [CR]
Received data: DF 0 0 0 0 * [CR]
When you write a fixed data into a specified area, this command can reduce the traffic to a host device and, therefore,
the system can be operated fast by this command.
Antenna The first address of written area
designa-
tion
Specifies how to communicate with a tag. For details, refer to the communication desig-
nation list.
Specifies a unit of written data.
"B": Byte
"W": Word (2 bytes)
Fixed to "1".
Specifies the address to write a data into a tag in four hexadecimal digits.
Available designation range: 0000h to 007Fh.
Specifies the last address to write a data into a tag in four hexadecimal digits.
Available designation range: 0000h to 007Fh.
Data written into a tag. Specify 1 or 2 bytes of hexadecimal code.
Status
flag
Correct Usage
5-6 Communication Command
The last address of written area Written data
1/2 byte
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