MSR120D Programmer’s Manual UDN PM009 Rev. E
Section 4 – Commands and Responses 2005/2/23
Last command has been completed without an error condition, and ready for the next command.
+ (2Bh)
─
No Data
Comments
If host gets the response from reader, it may mean one of following:
1 In case of a "standard format" read command, this response "+" means "no start sentinel (SS) found".
2 In case of a "read error" command, this response "+" means "no history of a previous read error".
* (2Ah)
─
Error
Comments
If host gets the response from reader, it may mean one of following:
1 No end sentinel (ES).
2 Parity
error.
3 LRC
error.
? (3Fh)
─
Communication Error
Comments
If host gets the response from reader, it may mean one of following:
1 Bad
parity.
2 Wrong
BCC.
3 Receive character time-out (approximately 2mSec).
4 Message more than maximum character allowed.
! (21h)
─
Invalid Command
Comments
Command issued by the host was not recognized or won’t accept.
: (3Ah)
─
Power On Report
Comments
The interface has completed its initialization cycle.
~ (7Eh)
─
Cannot Execute
Comments
Read or encode command cannot be executed due to lack of hardware in the device.
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