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:
?<CR>
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 “?<CR>”
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