Swc command – miscellaneous function parameters, Cmc-7 character set, Invalid command response – MagTek MICRImage User Manual
Page 18: Table 2-5. swc command – miscellaneous parameters
MICRImage Check Reader
10
SWC COMMAND – MISCELLANEOUS FUNCTION PARAMETERS
The SWC command controls miscellaneous parameters, shown in Table 2-5 and described
below.
Table 2-5. SWC Command – Miscellaneous Parameters
BITS FUNCTION
7
6
5
4
3
2
1
0
0
CMC-7 Character Set: No
1
CMC-7
Character
Set:
Yes
0
0
Invalid
Commands:
?
0
1
Invalid Commands : No Reply (Header
Required)*
1
0
Invalid Commands: No Reply (no header
required)
1
1
Ignore
all
Commands
0
Active RTS: No
1
Active RTS: Yes
0
Data
Header:
No
1
Data
Header:
Yes
0
Card
Data
Message:
Multiple
1
Card
Data
Message:
Single
0
Compatible
Replies
1
Extended
Replies**
0
Send
only
if
MICR
(Compatible)
1
‘No MICR’ Response**
*Header Required means all commands must be preceded by a GS character (Hex 1D).
**Setting these bits means the Reader may not be compatible with applications using previous
MagTek MICR Products.
CMC-7 Character Set
If NO is selected, the MICR Reader will only read E13-B characters. When YES is selected, the
MICR Reader will read both CMC-7 and E13-B characters (see Appendix B). However, the
MICR Reader will only output raw data ("as is" on the check) for checks with CMC-7 characters.
Invalid Command Response
Invalid command response is the action the MICRImage takes upon receipt of a command it
does not recognize. It can also be used to stop the MICRImage from receiving any more
commands.
The first option “?
is the default. If the MICRImage receives an unrecognized
command, it will return a question mark and carriage return to the host. The MICRImage will
then return to an idle state and wait for further commands or check/credit card reads.
For the second option, “no reply - header required,” the MICRImage will only execute
commands preceded by a GS ASCII character (hex 1D), and it will not reply to invalid