NCR 7156, Руководство пользователя

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Chapter 6: Commands 7156 Owner’s Guide
September 1997 98
While MICR data is still outstanding, an application should use the real time GS ENQ. A
response to GS ENQ can still arrive “inside” ASCII MICR data, but it can be recognized
and extracted. And although ASCII MICR data cannot be distinguished from responses to
ESC u and ESC v, those are all non-real time responses and will arrive in the order in
which they were solicited.
Note also that although the original intent of the response to ESC v was to provide motor
jam information in bit 3 and out-of-range temperature and voltage information in bit 7,
these bits will always be 0 when transmitted. This is due to the fact that ESC v is not
processed until the error condition is cleared.
Batch Mode Response Response Recognized By:
ESC u 0 0 0 0 0 0 0 x x Binary
ESC v 0 x x 0 0 x x x Binary
ESC w 1 (MICR read)* 0
0
0
0
0
1 0
1
x 0
x
x 1
x
x 1
x
x 0
x
x 1
x
x Binary (Carriage
Return)
Binary (n = 20-2F)
Binary (n = 30-7F)
GS I n 0 x x 0 x x x x Binary
GS r n 0 x x 0 x x x x Binary
Real Time Response Response Recognized By:
GS EOT n 0 x x 1 x x 1 0 Binary
DLE EOT n 0 x x 1 x x 1 0 Binary
GS ENQ 1 x x x x x x x Binary
XON 0 0 0 1 0 0 0 1 Binary
XOFF 0 0 0 1 0 0 1 1 Binary
Auto Status Back
(ASB) Response Recognized By:
ASB Byte 1 0 x x 1 x x 0 0 Binary
ASB Bytes 2-4 0 x x 0 x x x x Binary
*Turn off Automatic Status Back (ASB) mode during a MICR read because the
ASB bytes will be confused with MICR data.
Bar Code Commands
These commands format and print bar codes on the receipt station.