Honeywell 20205 Manual

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Centering Window
Use the centering feature to narrow the image scanner’s field of view so the 
image scanner reads only the bar code you want.  When centering is turned on, 
the image scanner only reads codes that intersect or are contained within the 
centering window you set up.  At least part of a bar code must be within the 
window to be decoded or output by the image scanner.
To change the left or right edge of the centering window, scan Centering On, 
then scan one of the following bar codes.  Then scan the percent you want to 
shift the centering window using digits on the inside back cover of this manual.  
Scan Save.   Default Centering = 40% for Left, 60% for Right.
The figure below illustrates the percentage range from 1 to 100%.
Left of Centering Window
Right of Centering Window
* Centering Off Centering On
20%
30%
90% 80%40% 60%
70%
10%
0%
100% 
						

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Example:If you have two bar codes next to one another and the centering 
window is set to 40% left edge and 60% right edge, only the bar 
code that intersects that window will be decoded.
Preferred Symbology
The 3820/3820i can be programmed to specify one symbology as a higher 
priority over other symbologies in situations where both bar code symbologies 
appear on the same label, but the lower priority symbology cannot be disabled.
For example, you may be using the imager in a retail setting to read UPC 
symbols, but have occasional need to read a code on a drivers license.  Since 
some licenses have a Code 39 symbol as well as the PDF417 symbol, you can 
use Preferred Symbology to specify that the PDF417 symbol be read instead of 
the Code 39.
Preferred Symbology classifies each symbology as high priority, low priority, 
or as an unspecified type.  When a low priority symbology is presented, the 
imager ignores it for a set period of time (see Preferred Symbology Time-out on 
page 3-9) while it searches for the high priority symbology.  If a high priority 
symbology is located during this period, then that data is read immediately. 
If the time-out period expires before a high priority symbology is read, the imager 
will read any bar code in its view (low priority or unspecified).  If there is no bar 
code in the imager’s view after the time-out period expires, then no data is 
reported.
Note: A low priority symbol must be centered on the aiming pattern to be read.
Scan a bar code below to enable or disable Preferred Symbology.
20%
30%
90% 80%40% 60%
70%
10%
0%
100% Decoded bar code
* Preferred Symbology Off Preferred Symbology On 
						

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High Priority Symbology
To specify the high priority symbology, scan the High Priority Symbology bar 
code below.  On the Symbology Charton page A-1, find the symbology you want 
to set as high priority.  Locate the Hex value for that symbology and scan the 2 
digit hex value from the Programming Chart (inside back cover).  Scan Save to 
save your selection.  
Default = None
Low Priority Symbology
To specify the low priority symbology, scan the Low Priority Symbology bar code 
below.  On the Symbology Charton page A-1, find the symbology you want to 
set as low priority.  Locate the Hex value for that symbology and scan the 2 digit 
hex value from the Programming Chart (inside back cover).  
If you want to set additional low priority symbologies, scan FF, then scan the 2 
digit hex value from the Programming Chart for the next symbology.  You can 
program up to 5 low priority symbologies.  Scan Save to save your selection.  
Default = None
Preferred Symbology Time-out
Once you have enabled Preferred Symbology and entered the high and low 
priority symbologies, you must set the time-out period.  This is the period of time 
the imager will search for a high priority bar code after a low priority bar code has 
been encountered.  Scan the bar code below, then set the delay (from 1-3,000 
milliseconds) by scanning digits from the inside back cover, then scanning Save.  
Default = 500 ms.
Preferred Symbology Default
Scan the bar code below to set all Preferred Symbology entries to their default 
values.
High Priority Symbology
Low Priority Symbology
Preferred Symbology Time-out
Preferred Symbology Default 
						

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Output Sequence Overview
Require Output Sequence
When turned off, the bar code data will be output to the host as the image 
scanner decodes it.  When turned on, all output data must conform to an edited 
sequence or the image scanner will not transmit the output data to the host 
device.
Note: This selection is unavailable when the Multiple Symbols Selection is 
turned on.
Output Sequence Editor
This programming selection allows you to program the image scanner to output 
data (when scanning more than one symbol) in whatever order your application 
requires, regardless of the order in which the bar codes are scanned.  Reading 
the 
Default Sequence symbol programs the image scanner to the Universal 
values, shown below.  These are the defaults.  Be certain you want to delete or 
clear all formats before you read the 
Default Sequence symbol.
Note: You must hold the trigger while reading each bar code in a sequence.
Note: To make Output Sequence Editor selections, you’ll need to know the 
code I.D., code length, and character match(es) your application 
requires.  Use the Alphanumeric symbols (inside back cover) to read 
these options.
To Add an Output Sequence
1. Scan the Enter Sequence symbol (see Require Output Sequence, page 3-
11).
2.Code I.D.
On the Symbology Charton page A-1, find the symbology to which you want 
to apply the output sequence format.  Locate the Hex value for that symbol-
ogy and scan the 2 digit hex value from the Programming Chart inside the 
back cover of this manual.
3.Length
Specify what length (up to 9999 characters) of data output will be acceptable 
for this symbology.  Scan the four digit data length from the Programming 
Chart inside the back cover of this manual.  (Note:  50 characters is entered 
as 0050.  9999 is a universal number, indicating all lengths.)  When calculat-
ing the length, you must count any programmed prefixes, suffixes, or format-
ted characters as part of the length (unless using 9999). 
4.Character Match Sequences
On the ASCII Conversion Chart (Code Page 1252)on page A-4, find the 
Hex value that represents the character(s) you want to match.  Use the Pro-
gramming Chart inside the back cover of this manual to read the alphanu-
meric combination that represents the ASCII characters.  (99 is the 
Universal number, indicating all characters.) 
						

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5.End Output Sequence Editor
Scan F F to enter an Output Sequence for an additional symbology, or Save to save your entries.
Other Programming Selections
Discard This exits without saving any Output Sequence changes.
Output Sequence Editor   
Require Output Sequence
When an output sequence is Required, all output data must conform to an edited 
sequence or the image scanner will not transmit the output data to the host 
device.  When it’s 
On/Not Required, the image scanner will attempt to get the 
output data to conform to an edited sequence, but if it cannot, the image scanner 
transmits all output data to the host device as is.
When the output sequence is 
Off, the bar code data is output to the host as the 
image scanner decodes it.  
Note: This selection is unavailable when the Multiple Symbols Selection is 
turned on.
Enter Sequence
Default Sequence
 Required
 On/Not Required
 * Off 
						

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Output Sequence Example
In this example, you are scanning Code 93, Code 128, and Code 39 bar codes, 
but you want the image scanner to output Code 39 1st, Code 128 2nd, and Code 
93 3rd, as shown below.
Note: Code 93 must be enabled to use this example.
You would set up the sequence editor with the following command line:
SEQBLK62999941FF6A999942FF69999943FF
The breakdown of the command line is shown below:
SEQBLKsequence editor start command
62 code identifier for Code 39
9999 code length that must match for Code 39, 9999 = all lengths
41 start character match for Code 39, 41h = “A”
FF termination string for first code
6A code identifier for Code 128
9999 code length that must match for Code 128, 9999 = all lengths
42 start character match for Code 128, 42h = “B”
FF termination string for second code
69 code identifier for Code 93
9999 code length that must match for Code 93, 9999 = all lengths
43 start character match for Code 93, 43h = “C”
FF termination string for third code
A - Code 39
B - Code 128
C - Code 93 
						

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To program the previous example using specific lengths, you would have to 
count any programmed prefixes, suffixes, or formatted characters as part of the 
length.  If you use the example on page 3-12, but assume a  suffix and 
specific code lengths, you would use the following command line:
SEQBLK62001241FF6A001342FF69001243FF
The breakdown of the command line is shown below:
SEQBLK sequence editor start command
62 code identifier for Code 39
0012 A - Code 39 sample length (11) plus CR suffix (1) = 12
41 start character match for Code 39, 41h = “A”
FF termination string for first code
6A code identifier for Code 128
0013 B - Code 128 sample length (12) plus CR suffix (1) = 13
42 start character match for Code 128, 42h = “B”
FF termination string for second code
69 code identifier for Code 93
0012 C - Code 93 sample length (11) plus CR suffix (1) = 12
43 start character match for Code 93, 43h = “C”
FF termination string for third code
Multiple Symbols
When this programming selection is turned On, it allows you to read multiple 
symbols with a single pull of the image scanner’s trigger.  If you press and hold 
the trigger, aiming the image scanner at a series of symbols, it  reads unique 
symbols once, beeping (if turned on) for each read.  The image scanner attempts 
to find and decode new symbols as long as the trigger is pulled.  When this 
programming selection is turned 
Off, the image scanner will only read the 
symbol closest to the aiming beam.
Multiple Symbols On
* Multiple Symbols Off 
						

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No Read
With No Read turned On, the image scanner sends an “NR” to the host if you 
pull and release the trigger without reading a code (e.g., bad bar code).  If No 
Read is turned 
Off, the “NR” will not be sent to the host.
If you want a different notation than “NR,” for example, “Error,” or “Bad Code,” 
you can edit the output message using the Data Formatter (page 5-4).  The hex 
code for the No Read symbol is 9C.  
Video Reverse
Video Reverse is used to allow the image scanner to read bar codes that are 
inverted.  The “Off” bar code below is an example of this type of bar code.
Note:  If additional menuing is required, Video Reverse must be disabled to 
read the menu bar codes and then re-enabled after menuing is 
completed.
No Read On
* No Read Off
Video Reverse On
* Video Reverse Off 
						

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4
Data Editing
Prefix/Suffix Overview
When a bar code is scanned, additional information is sent to the host computer 
along with the bar code data.  This group of bar code data and additional, 
user-defined data is called a “message string.”  The selections in this section 
are used to build the user-defined data into the message string.
Prefix and Suffix characters are data characters that can be sent before and 
after scanned data.  You can specify if they should be sent with all symbologies, 
or only with specific symbologies.  The following illustration shows the break-
down of a message string:
Points to Keep In Mind
 It is not necessary to build a message string.  The selections in this chapter 
are only used if you wish to alter the default settings.  Default prefix = None.  
Default suffix = None.
 A prefix or suffix may be added or cleared from one symbology or all 
symbologies.
 You can add any prefix or suffix from the ASCII Conversion Chart (Code Page 
1252)on page A-4, plus Code I.D. and AIM I.D.
 You can string together several entries for several symbologies at one time.
 Enter prefixes and suffixes in the order in which you want them to appear on 
the output.
 When setting up for specific symbologies (as opposed to all symbologies), the 
specific symbology ID value counts as an added prefix or suffix character.
To Add a Prefix or Suffix:
Step 1.Scan the Add Prefix or Add Suffix symbol (page 4-3).
Step 2.Determine the 2 digit Hex value from the Symbology Chart (included in 
the Appendix A) for the symbology to which you want to apply the prefix 
or suffix.  For example, for Code 128, Code ID is “j” and Hex ID is “6A”.
Step 3.Scan the 2 hex digits from the Programming Chart inside the back 
cover of this manual or scan 9, 9 for all symbologies.
Pref ix
Scanned Data
Suffix
1-11
alpha numeric &
control characters variable length 1-11
alpha numeric &
control characters 
						

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Step 4.Determine the hex value from the ASCII Conversion Chart (Code Page 
1252)on page A-4, for the prefix or suffix you wish to enter. 
Step 5.Scan the 2 digit hex value from the Programming Chart inside the back 
cover of this manual.
Step 6.Repeat Steps 4 and 5 for every prefix or suffix character.
Step 7.To add the Code I.D., scan 5, C, 8, 0.
 To add AIM I.D., scan 5, C, 8, 1.
 To add a backslash (\), scan 5, C, 5, C.
Note: To add a backslash (\) as in Step 7, you must scan 5C twice – once to 
create the leading backslash and then to create the backslash itself.
Step 8.Scan Save to exit and save, or scan Discard to exit without saving.
Repeat Steps 1-6 to add a prefix or suffix for another symbology.
Example: Add a Suffix to a specific symbology
To send a CR (carriage return) Suffix for UPC only:
Step 1.Scan Add Suffix.
Step 2.Determine the 2 digit hex value from the Symbology Chart (included in 
the Appendix A) for UPC.
Step 3.Scan 6, 3 from the Programming Chart inside the back cover of this 
manual.
Step 4.Determine the hex value from the ASCII Conversion Chart (Code Page 
1252)on page A-4, for the CR (carriage return). 
Step 5.Scan 0, D from the Programming Chart inside the back cover of this 
manual.
Step 6.Scan Save, or scan Discard to exit without saving.
To Clear One or All Prefixes or Suffixes:
You can clear a single prefix or suffix, or clear all prefixes/suffixes for a symbol-
ogy.  When you Clear One Prefix (Suffix), the specific character you select is 
deleted from the symbology you want. When you Clear All Prefixes (Suffixes), 
all the prefixes or suffixes for a symbology are deleted.
Step 1.Scan the Clear One Prefix or Clear One Suffix symbol.
Step 2.Determine the 2 digit Hex value from the Symbology Chart (included in 
the Appendix A) for the symbology from which you want to clear the 
prefix or suffix.