Omron V680-CA5D01-V2 User Manual page 178

Command and Response Formats
1:1 Protocol
271 characters max. per frame
Command code Data
× × ... ×
× ×
2
n
1:N Protocol
271 characters max. per frame
Command code
Controller No.
× × ×
× ×
@
3 2
The Controller No. is given as a decimal number between 00 and 31.
Name
Controller No. The Controller number (00 to 31) is included only for 1:N protocol. The Controller number must be
preceded by the @ mark and is specified as a decimal value.
Command code A 2-character code that specifies the command to be executed is added.
The same command code is returned in the response.
Data Command and response information is entered here.
• ASCII/Hexadecimal designation, process designation, and mode designation
• Destination Antenna designation
• Start address
• Write data or number of read bytes
FCS (See note.) Horizontal parity check data that is added when using 1:N protocol.
Terminator Indicates the end of the command or response.
Note: Refer to FCS Calculation Example for details on calculation programs for the FCS.
p. 177
Terminator
*
CR
2
Terminator
Data
FCS
...
× ×
× ×
*
n 2
CR
2
Description
SECTION 5
Communications
RFID System
175
User's Manual