Introduction
This document describes the principles and configuration of using
Code
Identifiers
in E-WMS, which uniquely identifies the type of barcode scanned.
Description
A code identifier is an international recognized extra character, or set of characters, added by the
scan head of a hand terminal as prefix when scanning a barcode, to the value passed to the
application. These extra characters identify which
type of barcode was
scanned, so scanner software like E-WMS knows how to treat (decode) this
barcode.
Usage of the code identifier has to be set up in the scanner configuration itself, and
also in the E-WMS hand terminal settings.
Using a scanner
prefix and suffix already gave the possibility to recognize whether
the text input was scanned or manually typed. The 'code identifier' offers extra
functionality to recognize the type of barcode that was scanned.
In warehouses where multiple types of barcodes are used, including GS1-128
(EAN128), the combination of prefix/suffix and code identifier should be used,
to avoid unwanted 'GS1-128' decoding by E-WMS of non-GS1-128 barcodes.
This document contains following sections:
Prerequisites for using code identifier
- Usage of E-WMS ASP (Communication method 'Scanner - ASP')
- The Code Identifier system on the scanner must be supported by E-WMS:
AIM or Symbol.
- The usage of code identifier type 'Symbol' is available from product
update 399
- The usage of code identifier type 'AIM' is available from product update
408
- Usage of Code Identifier must be configured on the scanners and in E-WMS
scanner settings
- Scanner prefix and suffix also enabled on scanner
and in E-WMS configuration, to avoid unwanted application of Code ID.
(when Code ID is enabled and prefix and suffix are not used, manual
entry of item code "BCDEF" will result in interpretation of item code "CDEF",
because "B" can be regarded as Code ID for a CODE39 barcode)
- To allow for GS1-128 decoding, the E-WMS scanner setting 'Use EAN128'
must be enabled per scanner process.
Why use code identifier?
Using a code identifier is a must when you are using multiple types of barcodes
in your warehouse; CODE39 or CODE128 labels for warehouse location labels, GS1
UPC/UCC for single product identification, and
GS1-128 barcodes
containing multiple parts of data.
Scanning of GS1-128 barcodes requires that E-WMS decodes the scanned data,
because a scanned GS1-128 barcode will in most cases contain several parts of
data in one scan. Each part of information in a GS1-128 barcode is preceded by an
'application
identifier' (AI). The AI for 'item code' is for example '02', so scanning
the part '0208717496971075' within a GS1-128 barcode
would result in E-WMS searching for item '08717496971075'.
However, when not scanning a GS1-128 barcode, but a simple (CODE39) barcode
which also happens to start with a GS1-128 application identifier like '02', then
GS1-128 decoding should NOT be started. Without code identifier, it can occur
that scanning (CODE39) item code '0267879' would
result in error message 'item code 67879 not found'. When using a code
identifier, scanning this CODE39 label would add a prefix
('B' or ']A4') to the barcode, while scanning a GS1-128 barcode would add prefix
'K' or ']C1' , so E-WMS knows when to start GS1-128 decoding, and when not.
These extra characters are not visible in E-WMS, because these will be
removed immediately. You can scan a barcode in 'Wordpad' on a scanner, to view
the 'raw' scanned barcode, including prefix, suffix and code identifier.
Code identifier standards
There are two international standards for Code Identifiers; the
Symbol
standard and the
AIM standard. E-WMS supports the Symbol
standard
(for a limited number of barcode types) from release 399, and the AIM standard
from release 408.
Symbol code identifier
The codes marked below
with "*" are supported by E-WMS, when Code Identifier 'Symbol' is enabled:
| Prefix |
Supported |
Remarks |
Barcode type |
|
|
|
|
|
|
A |
|
|
UPC-A, UPC-E, UPC-E1, EAN-8, EAN-13 |
|
B |
* |
|
CODE39, CODE32 |
|
C |
|
|
Codabar |
|
D |
* |
|
CODE128, ISBT128 |
|
E |
|
|
CODE93 |
|
F |
|
|
Interleaved 2 of 5 |
|
G |
|
|
Discrete 2 of 5, IATA 2 of 5 |
|
H |
|
|
CODE11 |
|
J |
|
|
MSI Plessey |
|
K |
* |
*1 |
UCC, EAN128 |
|
L |
|
|
Bookland EAN |
|
M |
|
|
Trioptic Code 39 |
|
N |
|
|
Coupon Code |
|
R |
|
|
GS1 Databar Omnidirectional (RSS14), GS1 limited (RSS limited), |
|
|
|
|
GS1 expanded (RSS
expanded) |
|
T |
|
|
UCC Composite, TLC39 |
|
X |
|
|
PDF417, Macro PDF417, Micro PDF417 |
|
|
|
|
|
|
P00 |
* |
*2 |
Data Matrix |
|
P01 |
* |
*2 |
QR Code |
|
P02 |
|
|
Maxicode |
|
P03 |
|
|
US Postnet |
|
P04 |
|
|
US Planet |
|
P05 |
|
|
Japan Postal |
|
P06 |
|
|
UK Postal |
|
P08 |
|
|
Dutch Postal |
|
P09 |
|
|
Australian and UK Postal |
- When Symbol is enabled as
Code Identifier in E-WMS, scanning of this barcode type always results in
GS1-128 decoding.
- From release
413, GS1-128 content can be decoded from this barcode type, depending
setting 'Use
EAN128 in 2D bar code'. In release 412 or earlier, EAN128 is not decoded
for these barcode types.
AIM code identifier
From release 408, E-WMS supports the AIM code identifier. The AIM system adds
multiple characters to a barcode scan. All these barcode types are recognized by
E-WMS when using AIM, but only the marked entries (*) are handled specifically.
For the other barcode types, the content of the barcode is just passed 'as is' to
the E-WMS scan field.
The 'x' mentioned below in the prefix is the 'modifier character' which is
not interpreted by E-WMS, so can be any character.
| Prefix |
Remarks |
Barcode type |
|
|
|
|
|
]Ax |
|
CODE39 |
|
]Bx |
|
Telepen |
|
]C0 |
|
CODE128 |
|
]C1 |
*1 |
GS1-128 (EAN128) |
|
]Dx |
|
Code One |
|
]dx |
*2 |
Datamatrix |
|
]Ex |
|
UPC/EAN8/EAN13 |
|
]ex |
|
GS1 databar (RSS) |
|
]Fx |
|
Codabar |
|
]Gx |
|
CODE93 |
|
]Hx |
|
CODE11 |
|
]Ix |
|
Interleaved 2 of 5 |
|
]Kx |
|
Code 16K |
|
]Lx |
|
PDF417 |
|
]Mx |
|
MSI Plessey, Magnetic |
|
]Nx |
|
Anker code |
|
]Ox |
|
Codablock |
|
]Px |
|
Plessey code |
|
]px |
|
Pharma code |
|
]Qx |
*2 |
QR code / Micro QR code |
|
]Rx |
|
Standard 2 of 5 |
|
]Sx |
|
Discrete 2 of 5, IATA 2 of 5, Straight 2 of 5 |
|
]Tx |
|
CODE49 |
|
]Ux |
|
Maxicode |
|
]Xx |
|
CODE39 Trioptic, Bookland EAN, NW7, Coupon, unlisted types |
| ]Zx |
|
Non-barcode data |
| ]zx |
|
Aztec |
- When AIM is enabled as Code
Identifier in E-WMS, scanning of this barcode type always results in GS1-128
decoding.
- From release
413, GS1-128 content can be decoded from this barcode type, depending
setting 'Use
EAN128 in 2D bar code'. In release 412 or earlier, EAN128 is not decoded
for these barcode types.
How to configure code
identifier in E-WMS
In menu
System, E-WMS, Scanners, General scanner settings
can be configured what type of code identifier is used. Please refer to
this document for details on these settings.
How to configure code
identifier on scanners
Please choose one of following documents:
Samples
The consequence of enabling 'Code ID' on the scanner, is that all scans now have
an extra prefix, to identify the barcode type.
Scanning an (CODE128)
GS1-128 barcode without 'Code ID' :
"(020871749697108137100$1512010110ABC01)"
Scanning an (CODE128) GS1-128
barcode with Symbol Code ID : "(
K020871749697108137100$1512010110ABC01)"
Scanning an (CODE128) GS1-128 barcode with AIM Code ID : "(
]C1020871749697108137100$1512010110ABC01)"
| |
|
| input on scanner |
result |
| (K02087174969710743705$10140110) |
When in E-WMS Code identifier 'Symbol' is enabled:
GS1-128 decoding is started by E-WMS |
| (]C102087174969710743705$10140110) |
When in E-WMS Code identifier 'AIM' is
enabled:
GS1-128 decoding is started by E-WMS |
| (D02087174969710743705$10140110) |
When in E-WMS Code identifier 'Symbol' is enabled:
CODE128 barcode, so GS1-28 decoding is not started |
| (]A402345678901234) |
When in E-WMS code identifier 'AIM' is
enabled:
CODE39 barcode, so GS1-128 decoding is not started, E-WMS will search
for scan- or item code 02345678901234 |
| (]C10202345678901234) |
When in E-WMS code identifier 'AIM' is enabled:
GS1-128 barcode, so GS1-128 decoding is started, removing Application Identifier
'02' and passing item identification '02345678901234'. |
| (02087174969710743705$10140110) |
When code identifier is enabled in E-WMS:
scan has
no code ID but is still scanned: GS1-128 decoding is started by E-WMS |
| 30717496971074 |
When prefix/suffix configured in E-WMS:
since no
prefix and suffix are detected in the input, assuming manual input of item code
and GS1-128 decoding is not started, passing '30717496971074' as scanned
value. |
| 30717496971074 |
When prefix/suffix and code identifier are disabled
in E-WMS:
treated as GS1-128 barcode, so application identifier '30' is removed
and '717496971074' is passed as scanned value. |
| 101213 |
When prefix/suffix and code identifier are disabled in E-WMS:
treated as GS1-128 barcode, application identifier '10' (batch number) is removed
and '1213' is passed as scanned value. |
| (D4-A2-3) |
Assuming code identifier 'Symbol' is
NOT enabled on the hand terminal but is enabled in E-WMS;
'4-A2-3' will
be passed as value to the current E-WMS scan field, because 'D' is a recognized
code identifier (CODE128 barcode) and is removed by E-WMS. |
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