Get documents about "LS 6804-I017A
Document Sample
LS 6804-I017A Special Operating Instructions
(73-17125-017)
Revision A: December 1998
Special Operating
Instructions
LS 6804-I017A Special Operating Instructions
(73-17125-017)
Revision A: December 1998
The LS 6804-I017A supports the following
new features:
¥ Programmable raster height and
raster expansion speed
¥ Edge trigger
¥ Soft trigger via RS-232
¥ Parameter programming via RS-232
¥ Enable/Disable laser on time-out
¥ PDF decode fail output
¥ Three trigger control modes
¥ Five raster control modes
¥ Enable/Disable laser on receiving
ASCII SI/SO character
¥ Scanner reset on exiting FAT mode.
2-12
LS 6804-I017A Special Operating Instructions
(73-17125-017)
Revision A: December 1998
Programmable Raster Size and
Raster Expansions Speed
The height of the laser raster pattern and the
rate at which the raster expands to that height
can be programmed using the following two
parameter bar codes, respectively. To pro-
gram each parameter, scan one of the follow-
ing two bar codes, then scan a two-digit value
using the numeric keypad on the next page.
Valid values range from 1 to 15.
<FN3>305062010F
RASTER HEIGHT
(Default = 15)
<FN3>305072010F
RASTER EXPANSION RATE
(Default = 11)
These parameters only apply when Smart
Raster is disabled and Always Raster is en-
abled. Note that the actual height and expan-
sion rate are directly, but not linearly,
proportional to their respective parameter
values.
3-12
LS 6804-I017A Special Operating Instructions
(73-17125-017)
Revision A: December 1998
Numeric Keypad
<FN3>A0 <FN3>A1
0 1
<FN3>A2 <FN3>A3
2 3
<FN3>A4 <FN3>A5
4 5
<FN3>A6 <FN3>A7
6 7
<FN3>A8 <FN3>A9
8 9
<FN3>B-
CANCEL
4-12
LS 6804-I017A Special Operating Instructions
(73-17125-017)
Revision A: December 1998
Edge Trigger
In External Trigger mode, this parameter al-
lows edge detection of the trigger for control-
ling start of decode. Use the bar codes below
to set this option.
<FN3>1040571
ENABLE EDGE TRIGGER
<FN3>1040570
DISABLE EDGE TRIGGER (DEFAULT)
When this parameter is enabled, decode
starts on a trigger pull (either hardware or
software command via RS-232), and contin-
ues even if the trigger pull is removed. De-
coding stops on either a successful decode or
laser on time-out.
Note: Edge Trigger is disabled when Laser
On Time-out is disabled.
5-12
LS 6804-I017A Special Operating Instructions
(73-17125-017)
Revision A: December 1998
Soft Trigger via RS-232
Software trigger allows the host to control
scanner operation via the RS-232 port. When
External Trigger is enabled and the scanner
receives an FS character (ASCII decimal value
28), the laser turns on and attempts a decode
(equivalent to a trigger pull). When the scan-
ner receives a CAN character (ASCII decimal
value 24), the laser turns off and the decode
attempt is terminated (equivalent to the trig-
ger release). Use the bar codes below to en-
able or disable this option.
<FN3>1040561
ENABLE SOFT TRIGGER
<FN3>1040560
DISABLE SOFT TRIGGER (DEFAULT)
6-12
LS 6804-I017A Special Operating Instructions
(73-17125-017)
Revision A: December 1998
Parameter Programming via
RS-232
Scanner parameters are stored in non-volatile
memory, and control different options in the
scannerÕs operation. Parameters are pro-
grammed by scanning parameter bar codes
provided in the Product Reference Guide. How-
ever, this software contains a new feature
which allows the host to send parameter set-
ting commands to the scanner via the RS-232
port. This capability is part of a set of features
provided by a function called Simple Scanner
Control. The scanner interpretation of com-
mands received from the RS-232 port can be
enabled and disabled with the following pa-
rameter bar codes:
<FN3>1040541
ENABLED SSC RECEIVE (DEFAULT)
<FN3>1040540
DISABLED SSC RECEIVE
To program a parameter using this feature,
send a string to the scanner using the follow-
ing format:
13XXXX<parameter bar code>
The portion of the string identiÞed by <pa-
rameter bar code> is the string of characters en-
coded in the corresponding parameter bar
code in the Product Reference Guide, without
the Function 3 character. Parameter bar codes
7-12
LS 6804-I017A Special Operating Instructions
(73-17125-017)
Revision A: December 1998
are Code 128 bar codes with a Function 3
character as its Þrst character. The portion
identiÞed by XXXX is a four digit hexadeci-
mal number representing the number of char-
acters in the command. For example, to
enable Edge Trigger, send:
13000D1040571
to the scanner. To disable Edge Trigger, send:
13000D1040570.
Depending on the application environment,
the LRC checksum and ACK/NAK protocols
can be enabled for this communication. For a
description of these, refer to the Product Refer-
ence Guide.
To reset the SSC parser in the scanner, send
two consecutive ESC characters (ASCII deci-
mal value 27) to the scanner. This may be nec-
essary to abort a poorly formatted command
sent to the scanner.
Optionally, a ÔTÕ character can be added be-
fore the string identiÞed by <parameter bar
code> to indicate a temporary change to the
parameter. The value of the parameter re-
turns to that saved in E2PROM after power
cycle to the unit. Note that this only applies to
a change to a particular value in the parame-
ter set, and not to parameter entries such as
Set Default and other directives. If a parame-
ter change requires scanning a sequence of
bar codes, each corresponding RS-232 com-
mand must include ÒTÓ. Be sure the four digit
hexadecimal number, representing the
number of characters in the command, in-
cludes the ÔTÕ character. The temporary pa-
rameter change beep is disabled by setting
the Do Not Beep After Good Decode param-
eter.
The Raster Height and Raster Expansion Rate
parameters, which are set by scanning multi-
8-12
LS 6804-I017A Special Operating Instructions
(73-17125-017)
Revision A: December 1998
ple bar codes, can now be set by sending a
single RS-232 command:
13000D205060X for Raster Height
13000D205070X for Raster Expansion Rate
where X is a hexadecimal value between 1
and F, inclusive, representing the parameter
value.
At least 1.25 seconds must elapse after a pa-
rameter change in E2PROM before another
parameter change command can be accepted
by the scanner. For temporary parameter
changes, at least 100 ms must elapse.
Enable/Disable Laser On
Time-out
<FN3>2050032
NORMAL LASER ON TIME-OUT (DEFAULT)
<FN3>20500FF
DISABLE LASER ON TIME-OUT
PDF Decode Fail Output
When the Transmit No Decode Message pa-
rameter is enabled, a no decode message of
FR is transmitted if a PDF symbol was detect-
ed but decode did not occur. If a PDF symbol
was not detected, a no decode message of NR
is transmitted.
9-12
LS 6804-I017A Special Operating Instructions
(73-17125-017)
Revision A: December 1998
Raster Modes
Use the following bar codes instead of the
Raster Option bar codes (ENABLE/DIS-
ABLE ALWAYS RASTER) and Smart Raster
bar codes (ENABLE/DISABLE SMART
RASTER) in the Product Reference Guide.
<FN3>2050900
SMART RASTER (DEFAULT)
<FN3>2050901
ALWAYS RASTER
<FN3>2050902
PROGRAMMABLE RASTER
<FN3>2050903
SLAB ONLY
<FN3>2050904
LINE ONLY
10-12
LS 6804-I017A Special Operating Instructions
(73-17125-017)
Revision A: December 1998
Trigger Modes
Use the bar codes below instead of the
Trigger Mode bar codes (NORMAL
TRIGGER MODE and BLINKING LASER
MODE) in the Product Reference Guide.
<FN3>2050200
EXTERNAL - HW/SW (DEFAULT)
<FN3>2050201
INTERNAL - BLINKING
<FN3>2050202
INTERNAL - CONTINUOUS
Enable/Disable Laser On Re-
ceiving ASCII SI/SO Character
The laser is disabled by default. To enable the
laser, send an ASCII decimal 15 (SI character)
to the scanner.
To disable the laser, send an ASCII decimal 14
(SO character).
11-12
LS 6804-I017A Special Operating Instructions
(73-17125-017)
Revision A: December 1998
Related Parameter Bar Codes
These parameters set the scanner in related
operating modes, and should be used with cau-
tion. Most are intended for Symbol techni-
cians. Some are also present in the Product
Reference Guide.
<FN3>FLASHMODE
FLASH PROGRAMMING
<FN3>FATMODE
FINAL ACCEPTANCE TEST
<FN3>91
SET DEFAULTS
12-12
Related docs
