User's manual Discovery
User’s
manual
Scantech Discovery SG-20
Light Information Terminal
User’s, installation and configuration Manual
Scantech-ID Discovery SG-20
Copyright © 2003, Scantech-ID BV.
This manual is copyrighted, with all rights reserved. Under the copyright laws, this manual may not, in
whole or in part, be copied, photocopied, reproduced, translated or converted to any electronic medium or
machine readable form without prior written consent of Scantech-ID BV.
Limited Warranty
Under all circumstances this manual should be read attentively, before installing and/or using the pro-duct.
In no event shall Scantech-ID BV be liable for any direct, indirect, special, consequential or incidental
damages arising out of the use or inability to use this documentation or product, even if advised of the
possibility of such damages. In particular, Scantech-ID BV shall not be liable for any hardware, software, or
data that is stored or used with the product, including the cost of repairing, replacing or recovering the
above. Scantech-ID BV reserves the right to change parts of the device at any time without preceding or
direct announcement to the client.
Scantech-ID BV reserves the right to revise this manual, and to make changes in the contents without
obligation to notify any person or entity of the revision or change. A serial number appears on the product.
Make sure that this official registration number has not been removed. It should be used whenever
servicing by Scantech-ID BV or an authorized Scantech dealer is necessary.
Important
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to
EN55022, and with the limits for a class A digital device, pursuant to part 15 of the FCC rules. These limits
are designed to provide reasonable protection against harmful interference when the equipment is operated
in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy
and, if not installed and used in accordance with the user’s manual, may cause harmful interference to radio
communications. Operation of the equipment in a residential area is likely to cause harmful interference in
which case the user will be required to correct the interference at his own expense. Any unauthorized
changes or modifications to this equipment could void the user’s authority to operate this equipment.
-
The Discovery is in conformity with the CE standards. Please note that a Scantech CE-marked power
supply unit should be used to conform to these standards.
Radio and television interference
Operation of this equipment in a residential area can cause interference with radio or television reception.
This can be determined by turning the equipment off and on. The user is encouraged to try to correct the
interference by one or more of the following measures:
• Re-orientate the receiving antenna
• Relocate the devices with respect to the receiver
• Move the device away from the receiver
• Plug the device into a different outlet in order to have the device and receiver on
different branch circuits
If necessary, the user should consult the manufacturer, an authorised Scantech dealer or experienced
radio/television technician for additional suggestions. The booklet "How to Identify and Resolve Radio-TV
Interference Problems", prepared by the Federal Communications Commission, can be of help. It can be
obtained from the U.S. Government Printing Office, Washington, DC 20402, Stock No. 004000003454.
P/N A3620011 December 2003
Table of contents
Preface
...................................................................................................i
Chapter 1 Safety........................................................................................ 1
1.1
Used conventions ............................................................. 2
1.2
Laser safety..................................................................... 2
1.3
Declaration of Conformity.................................................. 5
1.4
Scanner Labelling............................................................. 6
Chapter 2 General Description .................................................................... 9
2.1
Use of the Discovery SG-20 ............................................ 10
2.2
Construction of the Discovery SG-20................................ 11
2.3
Functioning of the Discovery SG-20.................................. 12
Chapter 3 Installation of the Discovery SG-20 ............................................. 15
3.1
Unpacking ..................................................................... 16
3.2
mounting ....................................................................... 16
Chapter 4 System Integration.................................................................... 19
4.1
Interfaces ...................................................................... 20
4.2
Installing the Discovery SG-20 ......................................... 31
4.3
Software........................................................................ 34
Chapter 5 Configuring the Discovery.......................................................... 37
5.1
terminal configuration Using 4 buttons ............................. 38
5.2
Explanation of the Service screens .................................. 38
Chapter 6 Ethernet Configuration............................................................... 49
6.1
Ethernet network configuration ........................................ 50
6.2
Network Protocols.......................................................... 52
6.3
How to get in touch with and to configure the SG-20
Discovery Ethernet .................................................................... 53
6.4
Configuring the Discovery using the buttons...................... 59
6.5
Physical Connection ........................................................ 62
6.6
Q & A , Basic Ethernet troubleshooting ............................. 62
6.7
Status LEDs ................................................................... 64
6.8
Non Windows Users ........................................................ 65
6.9
Related Documents......................................................... 66
Chapter 7 Maintaining the Discovery........................................................... 67
7.1
Cleaning......................................................................... 68
Appendices ................................................................................................ 69
A
Connector types and pin definitions .................................. 70
B
Control commands.......................................................... 72
C
Character sets ............................................................... 83
D
Factory Default Settings .................................................. 87
E
Downloading images, icons and fonts into the Discovery.... 90
F
Demo bar codes ............................................................. 98
G
Barcode set up ............................................................... 99
H
Frequently Asked Questions........................................... 104
I
Discovery Project tasks................................................. 116
J
Discovery in SG-10 mode .............................................. 118
K
Technical specifications................................................. 119
Preface
ATTENTION
Read this manual carefully and use it while installing and
programming the Discovery.
This user's manual is meant for installers and programmers of the Discovery.
The purpose of this manual is to guide the reader through the installation of the
Discovery, the installation of the network and the programming of the Discovery.
Before starting installation, please consult the CD-ROM. It contains the latest
version of the manual, new features and updates of software.
This manual contains 7 chapters and various appendices.
The first chapter gives some safety precautions.
Chapter 2 describes the features and the construction of the Scantech
Discovery.
Chapter 3 is meant for installers and describes the mechanical mounting.
Chapter 4 explains the integration in networks and software installation.
Chapter 5 describes the general configuration of the Discovery using the
buttons.
Chapter 6 Discusses into detail Ethernet connectivity (option).
Chapter 7 gives information concerning the maintenance of the Discovery.
Chapter 8 gives answer to Frequently Asked Questions.
Finally you will find the Appendices with various tables, lists, displays, barcodes,
FAQ’s and other useful info.
Scantech developed a Windows tools like I-Start, U-Start and various drivers to
get used to the products and to help get your applications running.
1
Chapter 1 Safety
Safety
2
1.1
USED CONVENTIONS
In this manual the following conventions are used:
ATTENTION
Gives a tip, an instruction or a point of attention.
IMPORTANT
Warns for possible damage to the scanner or other objects when
not following an instruction.
DANGER!
Warns for possible harm to persons when not following an
instruction.
1.2
LASER SAFETY
ATTENTION
During installing, always follow the, instructions.
DANGER!
Do not stare into the laser beam. The laser safety is in conformity
with IEC 825 (VDE 0837).
Scantech-ID Discovery SG-20
3
German:
Der Strichcode-Scanner DISCOVERY entspricht den Sicherheitsvorschriften nach IEC 825-1 (1993)
für ein Laserprodukt der Klasse I. Er entspricht auch U.S. 21CFR1040, anwendbar auf ein
Laserprodukt der Klasse IIa. Vermeiden Sie langzeitiges Hineinblicken in direktes Laserlicht.
Dutch:
De DISCOVERY scanner voldoet aan de veiligheidsnormen IEC 825-1 (1993) voor een Klasse I
laserproduct. Tevens voldoet de scanner aan U.S. 21CFR1040, van toepassing op een Klasse IIa
laserproduct. Vermijd langdurig kijken in direct laserlicht.
French:
Le scanner DISCOVERY est conforme aux normes de sécurité IEC 825-1 (1993) s’appliquant à un
produit laser de la classe I. Il est également conforme à la U.S. 21CFR1040 telle qu’elle s’applique
à un produit laser de la classe IIa. Eviter de rester exposé longtemps à la lumière directe du laser.
Danish:
DISCOVERY skanneren er i overensstemmelse med sikkerhedsstandarden IEC 825-1 (1993) for
laserprodukter i klasse I. Den er også i overensstemmelse med U.S. 21CFR1040, der gælder for
laserprodukter i klasse IIa. Undgå at se direkte på laserlys i længere perioder..
Finnish:
DISCOVERY-skanneri täyttää luokan I lasertuotteelle IEC 825-1:ssä (1993) asetetut
turvavaatimukset. Se täyttää myös U.S. 21CFR1040:ssa asetetut vaatimukset siltä osin kuin ne
koskevat luokan IIa lasertuotetta. Vältä pitkäaikaista suoraan laservaloon katsomista.
Swedish:
Avsökaren DISCOVERY uppfyller säkerhetsnormen IEC 825-1 (1993) för laserprodukter av klass 1.
Den uppfyller dessutom U.S. 21CFR1040 som gäller för laserprodukter av klass IIa. Undvik att titta i
direkt laserljus under längre perioder.
Norwegian:
DISCOVERY skanneren er i samsvar med sikkerhetsstandarden IEC 825-1 (1993) for laserprodukter
i klasse I. Den er også i samvar med U.S. 21CFR1040 for laserprodukter i klasse IIa. Unngå å se
langvarig på direkte laserlys.
Italian:
Lo scanner DISCOVERY è conforme alle norme di sicurezza IEC 825-1 (1993) relative ad un
prodotto laser di Classe 1. È inoltre conforme alla norma U.S. 21CFR1040 relativa ad un prodotto
laser di Classe IIa. Evitare l'esposizione prolungata all'emissione diretta di luce laser.
Portuguese:
O scanner DISCOVERY está conforme as normas de segurança IEC 825-1 (1993) para a Classe 1
dos produtos laser. Também está conforme a norma U.S. 21CFR1040 aplicada nos produtos laser
da Classe IIa. Evite expor os olhos directa e prolongadamente aos raios laser.
Spanish:
El scanner DISCOVERY reune las normas de seguridad IEC 825-1 (1993) para un producto laser de
Clase 1. Y también reune las normas U.S. 21CFR1040 que se aplican a un producto laser de Clase
IIa. Se debe evitar mirar muy fijo en luz lasérica directa.
Safety
4
English:
The DISCOVERY scanner complies with safety standard IEC 825-1 (1993) for a Class I laser
product. It also complies with U.S. 21CFR1040 as applicable to a Class IIa laser product. Avoid
long term viewing of direct laser light.
Optical:
The use of optical instruments with this product will increase eye hazard. Optical instruments
include binoculars, microscopes and magnifying glasses but do not include eyeglasses worn by the
user.
Radiant Energy:
The DISCOVERY uses a low-power laser diode operating at 630…670 nm in an opto-mechanical
scanner resulting in less than 0.7 mW peak output power. Laser light observed at 13 cm (5.1 in.)
above the window through a 7 mm (0.28 in.) aperture and averaged over 1000 seconds is less
than 3.9 µW per CDRH Class IIa specification. Do not attempt to remove the protective housing of
the scanner, as unscanned laser light with a peak output up to 0.9 mW could be accessible inside.
Laser Light Viewer:
The scanner window is the only aperture through which laser light may be observed on this product.
A failure of the scanner motor, while the laser diode continues to emit a laser beam, may cause
emission levels to exceed those for safe operation. The scanner has safeguards to prevent this
occurrence. If, however, a stationary laser beam is emitted, the failing scanner should be
disconnected from its power source immediately.
Adjustments:
Do not attempt any adjustments to or alteration of this product. Do not remove the scanner’s
protective housing. There are no user-serviceable parts inside.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous laser
light exposure.
Scantech-ID Discovery SG-20
1.3
DECLARATION OF CONFORMITY
5
Safety
6
1.4
SCANNER LABELLING
Scantech-ID Discovery SG-20
7
9
Chapter 2 General Description
General Description
10
2.1
USE OF THE DISCOVERY SG-20
The Discovery is a Light Information Terminal, which provides the user with the
opportunity to scan their chosen product and display product information or
verify the price before getting to the checkout. Apart from this, the Discovery
offers the ability to interface with loyalty cards and chipcards; display special
offers; display dual currency; multi-media support and grand total calculation.
Moreover, store level profitability can be increased.
Apart from the use as an advanced pricechecker, the Discovery can also be
used in many other environments where identification and information is
required. This includes use with ticketing, access control, time check, route and
place guidance etc.
Scantech-ID Discovery SG-20
2.2
CONSTRUCTION OF THE DISCOVERY SG-20
The various parts of the Discovery are indicated in figure 2.1:
A. Cover with window
The window has an anti-reflecting coating.
The cover with the integrated window can be easily replaced;
B. Speaker;
C. Graphical LCD;
The display size is 240x128 pixels.
The display features white characters on a blue backlit background.
D. Buttons for display control;
E. Main board;
F. Scantech scanner;
G. Rear panel;
H. Power supply;
I.
Bracket;
J. Lockplate;
K. Cap.
11
General Description
12
2.3
FUNCTIONING OF THE DISCOVERY SG-20
2.3.1
Introduction
The Discovery is an information terminal, which receives info (barcode or
buttons), from a user and answers (via the display and speaker), with
information provided by a computer application, which runs on a (server)
system elsewhere.
For barcode input the Discovery is provided with an integrated Scantech
barcode reader.
2.3.2
Input
The main input is generated by the integrated Scantech barcodereader, which
is characterised by a high performance omnidirectional scan-performance.
Additionally some commands or actions can be selected using the buttons next
to the screen (depends on application).
If required an additional handscanner or other serial-interface device can be
attached (contact Scantech for details).
2.3.3
Output
Based on the input and the application software on the host-system the
Discovery communicates with the user via text or graphics on the screen and
optional a beep the speaker.
An external ticketprinter may be added for receipts, coupons, tickets etc.
Scantech-ID Discovery SG-20
2.3.4
13
Software & control
The functions during daily use of the Discovery are determined by the
application program, which is controlling the Discovery. So the task of the
storage of databases, providing the information and sending it to the display of
the Discovery will be performed by a central hostsystem.
Providing this application running on the hostsystem is the responsibility of the
System Integrator!
Discovery
barcode
Host
barcode
Database
Application
(by System
Integrator)
Product and
graphical info
Product
info
The Discovery documentation, the sample sourcecodes and the demo-/set-up
programs can give you all the required information on how to communicate with
the Discovery and how to control it. You can find the additional information on
the CD ROM.
14
General Description
15
Chapter 3 Installation of the Discovery SG-20
System Integration
16
3.1
UNPACKING
Unpack the Discovery as follows:
1. Take the Discovery and its accessories out of the box.
2. Remove the packing material.
3. Check the packing list to make sure you have received all of the items
ordered.
4. Visually inspect the Discovery and accessories for any evidence of physical
damage.
5. If anything is missing or appears to be damaged, immediately contact your
dealer.
ATTENTION
Store the packing material and boxes: it should be used whenever
the Discovery is transported for servicing.
3.2
MOUNTING
Once you have unpacked all components, you can start installing the Discovery.
Installing the Discovery is divided in two steps:
1. Mounting the Discovery bracket to the wall.
2. Placing the Discovery on the bracket
(and pushing the lockplate to fasten the Discovery on the bracket.)
3. Installation is discussed in detail in the following subsections.
3.2.1
Mounting the bracket to the wall
Mount the bracket of the Discovery as follows:
Scantech-ID Discovery SG-20
ATTENTION
Mount the bracket on average eye height.
1. Mark the locations for the mounting holes on the wall and drill
three holes with a diameter of 6 mm.
2. Put the plugs that came with the Discovery in the holes.
3. Fasten the bracket to the wall with 3 screws (indicated by A in
figure 3.1),
4. Connect the power cable and the communication cable of the
Discovery.
17
System Integration
18
3.2.2
Placing the Discovery SG-20 on the bracket
1.
Slide the upper two ends of the bracket in the two openings at the back of
the Discovery (indicated by B in figure 3.1).
2.
Fasten the rear panel to the bracket by pushing the lockplate into the
locked position (figure 3.2).
3.
The Discovery can only be removed from the bracket when the lockplate is
pushed in the unlocked position.
19
Chapter 4 System Integration
System Integration
20
4.1
INTERFACES
This section shows the three standard Discovery hardware configurations,
including all technical details like cable P/N’s, cable diagrams, jumper settings
etc. In Chapter 6 you can find the (optional) Ethernet configuration. The
hardware specifications are summarised in Appendix A,”Connector types and
pin definitions”.
There are three main configurations possible when connecting the standard
Discovery to a back office system:
1.
Direct RS232 connection (see section 4.1.1;
2.
Direct RS422 connection (see section 4.1.2);
3.
Multipoint RS485 network configuration (see section 4.1.3).
It’s optional to use the Ethernet configuration (see Chapter 6).
Before connecting, determine the cable work needed (see the following
sections).
4.1.1
Direct RS232 connection (single unit)
The Discovery and the back office system are directly connected via an RS232
cable (see figure 4.1). When using a shielded cable the maximum cable length
is 15 m, otherwise the maximum cable length is 2 m. The cable will be supplied
and installed by the Scantech Distributor. See Appendix A for cable
specifications. For test and demo purposes a short RS-232 cable is available at
Scantech under P/N A361701.
Scantech-ID Discovery SG-20
21
A
RS-232 INTERFACE CABLE
(Demo cable P/N A361701)
B
Max. 15 m
POS BACK OFFICE SYSTEM
SG-20 TERMINAL
P/N A360102
P/N A360106
COMMUNICATION & TOOLS
A small software program is required on the Back Office system, arranging the
communication between the Discovery and the product information file (e.g.
Price Look Up file). This program will be supplied by the Scantech Distributor.
Scantech supplies I-START, the easy to use configuration- and demo-tool
(Windows based) featuring:
Editing the standard messages, icons and bitmaps
demo with bar code file
analysing the network status
extensive help file
etc. etc.
See Discovery Support CD-ROM P/N A362103 for more details.
System Integration
22
INTERFACE SELECTION:
1. At the original Discovery with P/N A360102 the jumper setting for RS-232
interface must be:
The jumper location is described in chapter 4.2.
2. At the Discovery with P/N from A360104 and higher, the interface selection
is done electronically and can simply be carried out by using the 4 buttons of
the Discovery. See page 38 “terminal configuration Using 4 buttons”.
4.1.2
Direct RS-422 connection (single unit)
The Discovery terminal is linked to the Back Office by means of a Separator
Box, converting the Back Office RS-232 signal into an RS-422 signal, bridging a
physical distance of maximum 1200 meter. The box also provides electrical
isolation to prevent communication ports to be damaged due to ground
potential differences. The RS-422 cable will be supplied and installed by the
Scantech Distributor. See Appendix A for the cable specifications. For test and
demo purposes a short RS-422 cable is available at Scantech under P/N
A351701.
Scantech-ID Discovery SG-20
23
Max. 15 m
Max. 1200 m
A
SEPARATOR BOX
P/N A3502031 (classic) or
P/N A361503 (expected as Version 2)
RS-422 Cable
(Demo cable P/N A351701)
RS-232 Cable
P/N A351702 (for Classic or V2)
B
Or standard 1:1 ser. cable (for V2 only)
SG-20 TERMINAL
POS BACK OFFICE SYSTEM
P/N A360102
P/N A360106
5VDC PSU,220V: P/N A251501, 110V: P/N A251502
COMMUNICATION & TOOLS
A small software program is required on the Back Office system, arranging the
communication between the Discovery and the product information file (e.g.
Price Look Up file). This program will be supplied by the Scantech Distributor.
Scantech supplies I-START, the easy to use configuration- and demo-tool
(Windows based) featuring Editing the standard messages, icons and bitmaps,
demo with bar code file, analysing the network status, extensive help file etc.
etc. See Discovery Support CD-ROM P/N A362103 for more details.
System Integration
24
INTERFACE SELECTION:
1. At the original Discovery with P/N A360102 the jumper setting for RS-422
interface must be:
The jumper location is described in section 4.2.
2. At the Discovery with P/N from A360104 onwards, the interface selection is
done electronically and can simply be carried out by using the 4 buttons of the
Discovery. See Chapter 5 for more details.
Installing the separator box
Installing the Separator Box (A3502031) converts the RS232 signal from the
back office system into a signal suitable for a single Discovery in RS-422 mode.
The box separates the Discovery’s electrically from the back office system by
using optocouplers. This prevents from damage due to ground potential
differences.
The box needs a 5 Vdc power adapter. See appendix A for plug types and pin
definitions.
Separator Box – Classic version
Scantech-ID Discovery SG-20
25
Next to the Classic version shown above, there is another version, the
Separator Box Version 2.
For your ease this version is fully backward compatible with the classic version.
However it has some additional connecting options for the power supply and
the serial cable to the host and moreover it has a higher maximal
communication speed. So Version 2 can act as a full replacement for the
Classic Version.
ScanGuide : Female port for 8-pins
AMP 554169-1 connector
towards Discovery(s)
Host : 9-pin Sub-D Female port for
1-1 cable from back office system
(RS-232)
LEDs :
Green: RS-232 RX-data
Red: Power On
Green: RS-232 TX-data
(from Host to SG-20)
(from SG-20 to Host)
Power :
2.0mm (left) or
(use either
1.3mm (right))
Center = ground.
Host : Female port for 6-pin shielded
AMP5-555175-2 connector from
back office system (RS-232)
(Alternative for 9p Sub D-conn on other side of box)
Separator Box Version 2
Install the separator box as follows:
1.
Plug the cable coming from the Discovery into the “ScanGuide” port of the
separator box.
26
System Integration
2.
Plug the cable coming from the back office system into the Host port of the
separator box.
3.
Plug the secondary power supply connector into the powersupply port.
4.
Plug the mains plug into an AC outlet.
IMPORTANT
Connect the separator box to a mains outlet which is on the same
circuit as the backoffice system. This prevents possible damage
due to differences in ground potential.
When the separator box is correctly installed, the power LED on the front is
illuminated.
4.1.3
Multipoint RS485 network configuration
In the Discovery RS-485 Network Configuration multiple units (max. 32) can be
linked to the POS Back Office system. The Scantech driver, together with the
network box, manages all data traffic on the network. The network cabling will
be supplied and installed by the Scantech Distributor. See Appendix A for the
cable specifications. For test and demo purposes a short RS-485 cable is
available at Scantech under P/N A351705.
Scantech-ID Discovery SG-20
27
B
C
SG-20 TERMINAL
P/N A360102
P/N A360106
*1: RS-485 NETWORK CABLE (Demo cable P/N A351705)
#n
*2: SPLITTER P/N A351502
#1
Max. 1200 m
*1
A
*2
System layers:
Application Software by
the Distributor)
NETWORK BOX
Network Driver
(by Scantech)
P/N A361502 (Version 2)
*1
P/N A361501 (classic) or
*2
*1
D
RS-232 Interface
#2
RS-232 Cable
P/N A351702 (for Classic or V2)
Or standard 1-1 ser. cable (for V2 only)
POS BACK OFFICE SYSTEM
5VDC adapter, 220V: P/N A251501 (for Classic, also suitable for V2) or
5VDC adapter. 90-250V: P/N A231501 for Version 2 only)
A. COMMUNICATION & TOOLS
A small software program is required on the Back Office system, arranging the
communication between the Discovery’s and the product information file (e.g.
Price Look Up file). This program will be supplied by the Scantech Distributor.
Scantech supplies network drivers for the following operating systems:
Windows 9x/NT/2000, SCO/UNIX, Linux and Solaris. The function of the
Discovery network driver software is: Data formatting/packaging, data routing,
error correction and terminal control (switch on/off terminals etc). The driver
features intelligent polling mechanism (for automatic priority adjustment), up to
32 terminals addressable and open interface to the application software.
Scantech also supplies I-START, the SG-20 demo and configuration tool. See
Discovery Support CD-ROM P/N A362103 for more details.
System Integration
28
B. JUMPER SETTINGS RS-485
for all terminals, except the last one
See interface selection point 2.
C. INTERFACE SELECTION:
1. At the original Discovery with P/N A360102 the jumper setting for RS-485
interface must be: (for the last terminal in the network)
2. At the updated Discovery with P/N from A360106 onwards, the interface
selection is done electronically and can simply be carried out by using the
4 buttons of the Discovery. See Section 6 for more details.
D. TERMINAL ADDRESS
The Discovery terminal address in the network can be configured using the
buttons. See SG-20 Manual section 6. Make sure all Discoveries have a
different network address. Non-unique addressing will result in a communication
conflict. Valid addresses are 01, 02, 03 .. 32.
Installing the network box
The Network box (A361501) converts the RS232 signal from the back office
system into a signal suitable for 1 to 32 Discovery’s in RS485 mode.
The box separates the Discovery’s electrically from the back office system by
using optocouplers. This prevents from damage due to ground potential
differences.
Scantech-ID Discovery SG-20
29
The box needs a 5 Vdc power adapter. See appendix A for plug types and pin
definitions.
IMPORTANT
For RS-485 network configurations only use network boxes with
PN: A361501 or higher.
Network Box (Classic)
Next to the Classic Version shown above, there is another version, the Network
Box Version 2.
For your ease this version is fully backward compatible with the Classic Version.
However it has some additional connecting options for the power supply and
the serial cable to the host and moreover it has a higher maximal
communication speed. So Version 2 can act as a full replacement for the
Classic Version.
System Integration
30
ScanGuide : Female port for 8-pins
AMP 554169-1 connector
towards Discovery(s)
Host : 9-pin Sub-D Female port for
1-1 cable from back office system
(RS-232)
LEDs :
Green: RS-232 RX-data
Red: Power On
Green: RS-232 TX-data
(from Host to SG-20)
(from SG-20 to Host)
Power :
(use either 2.0 mm (left) or
1.3mm (right))
Center = ground.
Host : Female port for 6-pin shielded
AMP5-555175-2 connector from
back office system (RS-232)
(Alternative for 9p Sub D-conn on other side of box)
Network Box Version 2
Install the network box as follows:
1.
Plug the cable coming from the Discovery into the “ScanGuide” port of the
network box.
2.
Plug the cable coming from the back office system into the Host port of the
network box. (For Classic Version: RJ-45 connector, for Version 2: 9-pin
Sub-D connector or RJ45 conn.).
3.
Plug the secondary powersupply connector into the powersupply port.
(With Version 2 choose the one powersupply port matching to your
powersupply plug).
Scantech-ID Discovery SG-20
IMPORTANT
Connect the network box to an outlet which is on the same circuit
as the backoffice system. This prevents possible damage due to
differences in ground potential.
When the network box is correctly installed, the power LED on the front is
illuminated.
4.1.4
Ethernet configuration
The Ethernet configuration is an option on the Discovery. For more details see
Chapter 6.
4.2
INSTALLING THE DISCOVERY SG-20
4.2.1
Removing the cover of the Discovery
Removal of the cover is usually not required. Only if your Discovery’s version is
below A360104 and you need to set the
jumpers or make some special connections
you may have to open the unit.
For installation of the connections of the
Discovery, remove the cover from the rear
panel as follows.
1. Loosen the two screws that keep the
cover in place
2. Remove the cover from the Discovery.
3. Disconnect the speaker and cable from
the cover
31
System Integration
32
4. Put the cover to a safe place, to prevent it from being damaged
5. To replace the cover afterwards, follow the same procedure in reverse,
being careful not to damage the lock on the topside.
4.2.2
The Main Board
The main board and the display of the Discovery are shown in the illustrations
below.
The upper picture is valid for all Discovery’s up to model A360104.
The following picture shows the newer version (from A360105 onwards) where
the dipswitches are replaced by soft-switches via the buttons.
Scantech-ID Discovery SG-20
The main board contains the following parts, as marked in the illustrations:
A. Power inlet; connected to the powersupply.
B. Port for communication with the back office system.
C. Jumpers for interface configuration and speaker-connector; P9 is the
speaker connector, J6, J1, J3 and J2 are used for configuration settings
(on systems up to version A360104).
D. Centronics printer port.
E. Full RS-232 port (P4), e.g. Chip Card reader.
F. Full RS-232 port (P3), e.g. Internal Scanner.
G. RS-232 port data reception only (P2), e.g. additional handscanner.
In a standard configuration, port 3 is used for the build-in Scantech Scanner;
port 2 can be used to connect a hand-held scanner. Port P4 can be used to
connect an additional serial device.
Port P5 can be used to connect a printer.
See Appendix A for the cable work and connector requirements.
33
System Integration
34
4.3
SOFTWARE
The Discovery SG-20 is a thin-client, front-end Light Information Terminal. Its
function is very easily configurable and fully determined by the software
package, driving the Discovery from the Back-Office/server. This software
package (or: added value) should be supplied by the System Integrator. This is
given the fact that there are no set international standards with regard to
product database structures and/or programming languages. Furthermore it is
not Scantech’s primary role to supply end-user application software.
4.3.1
Software functionality
The global function of the Discovery software package, running on the BackOffice/server, is:
1.
Set-up and maintain communication between the application itself and the
Discovery terminal(s).
2.
Configure the Discovery terminal(s) with regard to:
-
The standard scrolling texts
(“Scan your article”, “What's the price ?/ etc)
-
Full screen images
-
Icons
This configuration is done after the initial installation and after
service/replacement.
3.
Provide product information (article name and price) from the store’s
database,
combined with the right fonts and graphics, to make the Discovery
Scantech-ID Discovery SG-20
35
maximum appealing:
4.
Diagnostics & Terminal Statistics (optional)
4.3.2
Scantech Tools and Drivers
In order to support our System Integrators in the best possible way, Scantech
ID supplies:
1.
Extensive documentation describing all details of the product. (this manual
and more)
2.
Demo- and Configuration utilities: I-Start for the Discovery RS-232/422/485
and U-Start for the Discovery/Ethernet. The latter featuring: Ethernet
configuration, downloading images, icons and fonts, changing the standard
text messages, choose your own font and character size, select the
scrolling of text messages and images, demo with bar codes, download
and upload terminal configurations, upload new firmware into the Discovery
and most of all: the Discovery control (ESC) commands are displayed realtime (byte by byte)
on the U-Start terminal screen as a live demo how to control and configure
the Discovery.
3.
Examples of source code.
After the installation of I-Start and U-Start, you’ll find valuable source code
information on your
hard-drive with example programmes under
..\Program Files\Scantech\
4.
Drivers for the RS-485 multi-drop network.
The function of this Discovery network driver software is: Data
formatting/packaging,
data routing, error correction and terminal control (switch on/off terminals
etc).
The driver features an intelligent polling mechanism (for automatic priority
36
System Integration
adjustment), up to 32 terminals addressable and open interface to the
application software.
Scantech supplies RS-485 network drivers for the following operating
systems:
Windows 9x/NT/2000/XP, SCO/UNIX, Linux and Solaris.
All these items can be found on the Discovery Product Support CD-ROM.
ATTENTION
In order to make a Discovery work in an existing Scanguide SG-10
network, please refer to Appendix J.
37
Chapter 5 Configuring the Discovery
Ethernet Configuration
38
5.1
TERMINAL CONFIGURATION USING 4 BUTTONS
The new Scantech Discovery SG-20 may be configured using the 4 buttons
next to the screen
ATTENTION
The shown features are applicable to each Discovery with
partnumber A360104 or higher.
Older (ethernet) units may be set-up with the PC-Utility “U-Start”.
This utility will function on the newer models as well.
This section illustrates the structure of the service screens.
This feature can be entered by:
a)
Pressing button #4 for 5 seconds and
b)
Entering the authorisation code by pressing buttons 1, 2, 3, and 4 (in
that order).
5.2
EXPLANATION OF THE SERVICE SCREENS
Screen 1.0
Enter the 'secret' button combination to enter the service screens.
Scantech-ID Discovery SG-20
39
Screen 2.0
Enter screen 2.1
Enter screen 2.2
Enter screen 3.0
Enter screen 2.3 (Leave the
Service screens)
This is the first screen you enter, when the correct authorisation code is given.
At the bottom the current firmware version is displayed.
Screen 2.1
Increase volume
Decrease volume
Modify tone
Back to previous menu
Modify the volume and tone of the default beep (used when a barcode is
scanned).
Screen 2.2
Increase contrast
Decrease contrast
Back to previous menu
Modify the contrast of the display. Only available on partnumbers A360104 and
above.
Ethernet Configuration
40
Screen 2.3
Exit without saving
Save, then exit
Return to screen 2.1
The last screen you see before leaving the service screens. After leaving this
menu, the Discovery will restart.
Screen 3.0
Enter screen 3.1
Enter screen 3.2
Enter screen 4.0
Back to screen 2.0
Screen 3.1
Switch between interfaces
Optional interface settings (see
section 6.4 or for RS485: see
screen 3.1.2)
Back to screen 3.0
Select the interface the Discovery should use.
Choose one of the following interfaces:
- RS232 (no extra interface settings)
- RS422 (no extra interface settings)
- RS485 (see 3.1.2)
Scantech-ID Discovery SG-20
41
- Ethernet (optional, see page 60).
ATTENTION
1. As of partnumber A360104) the interface can be selected by
using this menu. Previous versions use jumpers on the main
board (Chapter 4.1”Interfaces”).
2. The Ethernet interface is optional and is only available if an
Ethernet module is placed inside the Discovery.
3. All interfaces use the same port on the back of the Discovery. If
switched from Ethernet to another interface, the Discovery
should be opened to bypass the Ethernet module.
Screen 3.1.2
Select next field
Increase value of current field
Decrease value of current field
Back to screen 3.1
RS485 Settings :
Address
: The RS485 address (1 - 32)
Protocol
: - Standard : The standard RS485 protocol
- Enhanced : A slightly enhanced protocol, decreasing
network traffic.
Terminator
: Enables or Disables the termination resistor. Should only
be used on the last physical Discovery in the network.
Ethernet Configuration
42
Screen 3.2
Select Port number (1 - 4)
Select next field
Increase value of current field
Back to screen3.0
This screen shows the internal port settings.
The Discovery has 4 internal RS232 ports:
Port 1:
The main port, through which all communication with a host is performed. This
port can be configured as RS232, RS422, RS485 or RS232 using TTL levels.
Port 2:
RS232 port for a hand held scanner. As of partnumber A360104, this port can
be accessed from the backside of the Discovery. This port is input only and
cannot be modified in any way. Its fixed settings are :
-
9600,8,N,1
-
Echo : Off
-
Suffix : CR (the last character of a barcode sent to a host)
-
RTS/CTS : On
Only the 'Device' option can be altered:
Device:
- Hand held:
Use for hand held scanner.
- None:
Entirely ignore this port.
Port 3:
This port is connected to the internal barcode scanner. Every option, except
RTS/CTS, can be altered.
Explanation:
Suffix:
The last character(s) the device uses after its
messages.
Scantech-ID Discovery SG-20
43
Device:
Polaris (=default):
A Scantech Polaris barcode
scanner is connected to this port.
Vip-type:
Another type Scantech scanner (like Nexus, Pollux or
Castor) is connected to this port.
Auxiliary:
Any other RS232 device.
None:
This port is entirely ignored.
Port 4:
This port is reserved for a future extension with a smart card reader. Every
parameter, except RTS/CTS, can be altered.
Explanation :
Device :
- Chipcard: If a chipcard reader is connected, a special protocol will
be used. This refers to a special chipcard reader, only
available on a project base.
- Auxiliary
Any RS232 device.
- None
This port is entirely ignored.
Screen 4.0
Enter screen 4.1
Enter screen 4.2
Enter screen 5.0
Back to screen 3.0
Screen 4.1
Select next field
Increase value of current field
Decrease value of current field
Back to screen 4.0
Ethernet Configuration
44
Last 3 options appears only in the
Scanguide=SG21 version
This screen offers some default behaviour settings:
- Scanguide:
Behaviour of the Discovery : SG20, SG10 or SG21. This
option consists of a macro, which modifies a number of
settings. Other settings than the ones mentioned here,
remain unmodified.
SG20 :
Scrolling messages/images : Enabled
Scrolling messages/images order of appearance : Scantech default
(alternating showing 5 messages and 12 images)
Static text : Disabled
Barcodes with code identifiers
RS232 settings :
o Echo = on
o RtsCts = off
o Suffix = CRLF
Default fontsize = small
SG10 :
Scrolling messages/images : Enabled
Scrolling messages/images order of appearance : Only use messages 1 and
2
Static text : Disabled
Barcodes without code identifiers (if RS485, then code identifiers are always
on)
RS232 settings:
o Echo = off
o RtsCts = off
Scantech-ID Discovery SG-20
45
o Suffix = CR
Default fontsize = medium
Display uses only 2 lines of 20 positions.
SG21 : (Only available with special SG21 firmware)
Scrolling messages/images : Disabled
Scrolling messages/images order of appearance :
Scantech default (alternating showing 5 messages and 12 images)
Static Text : Enabled
Barcodes without code identifiers
RS232 settings :
o Echo = off
o Suffix = CRLF
Default fontsize = medium
Disable 'One Moment'
Print mode
o Buffered: The Discovery uses an internal buffer (4 kB) for print
jobs. The print job is executed in the Background.
o Polled: The Discovery waits for the printer to be ready, before
any data is sent to it. This is a locked operation : Not until the
character is printed (or when a timeout occurs) the Discovery
returns to normal operation.
Code Ident.
o
On/Off: Enable / Disable code identifiers of the internal
barcode scanner.
Def. font set:
o 1,2,4-9: The default character set which should be used for
internal messages and static texts.
(Note : Sets 4 - 9 are free definable!)
Def.font size:
o small/medium/large. The default character size which should
be used for internal messages and static texts.
The following parameters are visible in SG21 mode only :
Ethernet Configuration
46
MFS:
1-10
The MFS station number (Note : this number is NOT
automatically linked to the remote IP Address, which can be
found in the Ethernet settings).
POS Station:
11-240 The station number the Discovery should use. (Note:
this number is NOT automatically linked to the own IP Address,
which can be found in the Ethernet settings).
Country:
The country number which should be used by this Discovery.
By default, the following countries are present in flash memory
033 (France)
036 (Hungary)
044 (United Kingdom)
048 (Poland)
353 (Republic of Ireland)
420 (Czech)
421 (Slovak)
5 more reserved countries are present.
Screen 4.2
1)
If chosen 'YES', the Discovery returns to factory default settings .
You can find these settings in Appendix D on page 87.
1
This may differ from the settings of the units at the moment of shipping from the Scantech ID
Factory.
Scantech-ID Discovery SG-20
ATTENTION
For your convenience, the following parameters are not affected
after selecting ‘Default Settings’ from the Service Menu:
1. Interface selection
2. Port 1 settings: Baudrate, Data bits, Stop bits, Parity, Echo
and Flow control
3. Display Contrast
Screen 5.0
LCM is for Scantech internal use only.
47
49
Chapter 6 Ethernet Configuration
Ethernet Configuration
50
6.1
ETHERNET NETWORK CONFIGURATION
6.1.1
Preface
The SG-20/Ethernet is provided with a converter module which lifts the
standard Discovery communication to Ethernet level. The unit uses IP protocol
for network communications. The supported protocols are ARP, UDP, TCP,
ICMP, Telnet, TFTP, DHCP, HTTP, SNMP, and BOOTP (TCP for connectionoriented stream applications and UDP for datagram applications).
The main benefit is providing network connectivity.
The unit (P/N A360103/4/5 or newer) is linked directly to your Local Area
TCP/IP Network.
IP addressing and configuration can be done through a Telnet session, by
means of Scantech’s utility U-Start or by using the 4 buttons (from P/N
A360104 onwards, see section 6.4).
IMPORTANT
The network cabling, hub etc. is supplied and installed by the
Scantech Distributor.
The SG-20/Ethernet is shipped with default IP address set to
0.0.1.0, i.e. DHCP enabled.
The original standard Discovery (RS232/422/485 with P/N
A360102), is not field upgradable to Ethernet.
Scantech-ID Discovery SG-20
51
SG-20/ETHERNET TERMINAL(S)
P/N A360103/4/5
#1
#2 …
#n
Hub /
Router /
Rest of the TCP/IP
Switch
Network
POS BACKOFFICE SYSTEM
6.1.2
All 1:1 Ethernet network Cable (CAT5)
Communication & Tools
A small software program is required on the Back Office system, arranging the
communication between the Discovery terminal(s) and the product information
file (e.g. Price Look Up file). This program will be supplied by the Scantech
Distributor. Scantech supplies U-Start, the easy to use configuration- and demotool (Windows based) for the Discovery/Ethernet. Featuring: editing the
standard messages, icons and images (bitmaps), demo with bar codes, setting
the IP address of the individual terminal, firmware upload etc. See Discovery
Support CD-ROM P/N A362103 for more details.
Ethernet Configuration
52
6.1.3
Interface Selection
At the Discovery with P/N A360103, the jumper setting for Ethernet must be:
The jumper location is described in the Discovery User’s Manual section 4.2.2.
1. At the Discovery with P/N from A360104 onwards, the interface selection
is done electronically and can simply be carried out by using the 4 buttons
of the Discovery. See section 5.1 for more details.
6.2
NETWORK PROTOCOLS
The Transmission Control Protocol (TCP) assures that no data is lost or
duplicated, and that every-thing sent to the connection arrives correctly at the
target. For typical datagram applications in which devices interact with other
devices without maintaining a point-to-point connection. The Internet Protocol
(IP) defines addressing, routing, and data block handling over the network.
6.2.1
INTERNET PROTOCOL (IP) ADDRESS
Every device connected to an IP network must have a unique IP address. This
address is used to reference the specific Discovery. See further for more
information on IP Addressing.
6.2.2
ETHERNET (MAC) ADDRESS
The Ethernet address of the individual SG-20 terminal, also referred as the
(unique) hardware address or the MAC address, can be found on the back of
Scantech-ID Discovery SG-20
53
the SG-20 Discovery, as well on the small Ethernet module inside the Discovery,
mounted next to the Polaris scanner. The first three bytes of the Ethernet
address are fixed (e.g. 00-20-4A), identifying the unit as a Scantech-Ethernet
product. The fourth, fifth, and sixth bytes represents a unique number assigned
to each unit. Sample Ethernet Address: 00-20-4A-52-4B-19 or
00:20:4A:14:01:18.
6.2.3
DHCP
The SG-20 Discovery/Ethernet is shipped with a default IP address set to
0.0.1.0, which automatically enables DHCP within the Discovery. Provided a
DHCP server exists on the network, it will supply the SG-20 Discovery with an IP
address, gateway address and subnet mask when the SG-20 boots up. If no
DHCP server exists, the Ethernet board inside the SG-20 Discovery will respond
with a diagnostic error: the red Diagnostic LED blinks continuously and the
green Status LED blinks five times.
IMPORTANT NOTE
In July 2003 the Discovery has undergone an update. See
document ‘Technical Product Update Discovery’ dated July 2003
for more details. At the new Discovery with hardware P/N from
A360104 onwards the major Ethernet parameters (IP addresses
etc) can also be configured by using the buttons on the Discovery
terminal itself, so without a remote utility or a Telnet session etc.
See Section 6.4 “Configuring the Discovery using the buttons”.
6.3
HOW TO GET IN TOUCH WITH AND TO CONFIGURE
THE SG-20 DISCOVERY ETHERNET
In the following sections you will find a detailed description how set-up the
Discovery/TCP-IP, in fact there are 4 phases:
Ethernet Configuration
54
Phase
Section
1.
Make connection between your host or Back-Office
computer and the SG-20/Ethernet terminal, using Discovery
TCPIP Terminal.exe.
6.3.1
2.
Set the address of the individual terminal (at least, if
*1
required)
6.3.2
3.
Checking the internal Discovery communication settings
4.
Set the Back-Office/Server IP address in the individual SG*1
20 terminal
*1
6.3.3
6.3.4
*1
: At the Discovery with hardware P/N from A360104, these parameters can
also be configured by using the buttons. See Chapter 6.4 Configuring the
Discovery using the buttonsfor more details.
In the examples below, IP address 192.137.81.210 is used for the Discovery
terminal and the MAC address of the specific unit is: 00-20-4A-52-4B-19.
6.3.1
Making Connection
Start-up U-Start, the demo and configuration program, which you received on
the Discovery CD-ROM enclosed with the Discovery or by E-mail (Ustart.exe for
Windows).
Scantech-ID Discovery SG-20
55
MAJOR FEATURES OF U-START, the
TCP/IP terminal:
Ethernet configuration of the
Discovery terminal
Download your own images, icons
and fonts
Change the standard text messages
Choose your own character size
Select the scrolling of text messages
and images
Demo with bar codes
Down- and upload terminal
configurations
Upload new firmware into the
Discovery
The Discovery control (ESC)
commands are displayed byte by
byte on the U-Start terminal screen.
1.
Input the Ethernet address of your individual SG-20 terminal, also referred
as the (unique) hardware address or the MAC address. This can be found
on a small label on the back of the SG-20 Discovery, as well on the Ethernet
module inside the Discovery. Format: 00-20-4A-52-4B-19.
2.
Input a free IP address on your local network (contact your network
manager). This is used as a temporary IP address for the Discovery. In our
example: 192.137.81.210:
3.
The Port address must be 1024
Ethernet Configuration
56
4.
Click on the ‘Connect’ button. The program will search for the unit on your
local network and try to make connection. The word ‘Connected !’ must
appear on the screen of the Discovery. In exceptional cases you don't get
connection right away and a second attempt must be made.
5.
Click on the Discovery screen to activate the Terminal Mode. Anything you
type on your keyboard will show up on the screen of the Discovery.
6.
Any bar code scanned at the Discovery will show-up on your PC screen,
enclosed (on the CD) you find a sheet with 4 special bar codes for demo
purposes.
7.
The Discovery commands (ESC sequences) can be generated pressing
ESC key plus the matching command character, e.g.:
a)
ESC and Z will reset the terminal (capital Z)
b)
ESC and @ will kick the unit terminal into sleep
c)
ESC and A will wake the unit up again
See also Appendix B for the complete command set.
6.3.2
Set the IP address of the individual terminal
1. Note: At the Discovery with hardware P/N from A360104, the IP address
can also be configured by using the buttons of the Discovery. See Chapter
6.4. The on line Ethernet Setup Mode can be entered by re-connecting the
unit;
Input Port address 9999:
the Discovery will respond with:
and click on the LED:
Scantech-ID Discovery SG-20
57
2. Hit a a and you’ll get in the Configuration screen (if you wait too long, the
connection will fail and you have to disconnect and re-connect).
You may skip steps 3 - 7 if you use DHCP.
3.
Select a0
to configure the SG-20/Ethernet terminal
4.
Input the required fixed SG-20 terminal IP address, format:
axxx xxx xxx xxx a
In case 0 0 1 0
(= default setting) is entered, you select
the DHCP feature.
5.
Set Gateway IP Address (N) a a
6
Netmask: No. of Bits for Host Part (0=default) (08) a a
7
Change Telnet config password (N)
a The response must be:
Ethernet Configuration
58
6.3.3
Checking the internal Discovery communication
settings
Select a1 a in order to check the communication settings between the
Discovery unit itself and the Ethernet module. NOTE: The Discovery/Ethernet is
supplied from the factory with the following settings:
•
At Discoveries with hardware P/N A360103: Jumpers in RS-232 mode,
data-comm settings: 9600 Baud, 8 data, 1 stop bit, echo off, RTS/CTS
off. CR (! SG-20 Default).
•
Since Discoveries with hardware P/N A360104 or higher, the data-comm
speed is increased with a factor 4 to: 38.400 baud, 8 data, No parity, 1,
Echo Off, RTS/CTS On.
The communication settings of the Discovery unit itself can be checked
(and corrected if necessary) by entering the Service Menu, using the 4
buttons. See Chapter 5 for details.
3.1
Baudrate (9600)
38400a a
3.2
I/F Mode (4C) ?
a a
3.3
Flow (00) ?
02 a a
3.4
Port No (01024) ?
a a
3.5
Connect Mode
(00)
= Autoconnect mode (= client
C5 5 a
mode), i.e. after power-up the unit looks
automatically for contact
a a keep (9600) at
Discovery with P/N
A360103
a a keep (00) at
Discovery with P/N
A360103
Scantech-ID Discovery SG-20
6.3.4
59
Set the Back-Office/Server IP address in the SG-20
terminal
Note: at the Discovery with hardware P/N from A360104, the IP address can
also be configured by using the buttons of the Discovery. See section 6.4 for
details.
1 Remote IP Address : (192) Input the required Back-Office/Server IP Address,
format: a xxx
2 Remote Port (01024) ?
a a
3 DisConnMode (00) ?
a a
4 FlushMode (00) ?
a a
5 DisConnTime ( 00:00) ?:
a a
6 SendChar 1 (00) ?
a a
7 SendChar 2 (00) ?
a a
8 Select
a9a
6.4
xxx
xxx
xxx
a
= Save and Exit
CONFIGURING THE DISCOVERY USING THE BUTTONS
At the Discovery with hardware P/N from A360104 and higher the most
frequently used parameters (e.g. IP addresses, gateway address and subnet
mask) can also be configured by using the buttons on the Discovery terminal
itself. So without a remote utility or a Telnet session etc, but simply by applying
the Service Screens. This mode can be entered by
1.
Pressing button #4 for 5 seconds and
2.
Entering the authorisation code by pressing buttons 1, 2, 3, and 4
(=default sequence)
Button 1
Button 2
Button 3
Button 4
Ethernet Configuration
60
3.
Once in the Configuration Mode, you reach the Service Screen to set the
Ethernet parameters by subsequently pressing buttons 3 and 1.
4.
When now selecting button #3, the unit’s Ethernet Settings will be retrieved
from the Ethernet converter module, before going to the next Service
Screen.
5.
When leaving this menu, you will be prompted to store these settings into
the Ethernet module. If yes, the Discovery will compare the RS-232 settings
of both the Discovery as well as the Ethernet module. If not identical, you
will be asked to synchronise them.
ATTENTION
You can use:
Button #1 to select the next field:
Button #2/3 to in/decrease:
(auto-accelerating) and
Button #4 to go back:
6.
Own IP Address: The IP Address the Discovery will use. Enter 0.0.1.0 to
obtain an address through DHCP
Scantech-ID Discovery SG-20
7.
Own Port: The Port number to communicate on
8.
Remote IP Address: the IP Address the Discovery is sending its data to, in
case the unit is configured as Client or UDP.
9.
Remote Port: The remote port
61
10. Subnet Mask: Enter The Subnet mask
11. Gateway: The gateway to communicate through. Enter 0.0.0.0 if not used
12. Connect Mode, there are 3 options:
-
TCP Client: The Discovery tries to connect to the remote IP Address +
Port, using TCP
-
TCP Server: The Discovery waits for a client to connect, using TCP
-
UDP: uses the connectionless datagram protocol
13. Other settings: The Ethernet module has many more settings than the ones
above. This option determines what to do with those, when saving the
above settings
Leave unmodified: When saving the above settings, all other settings are
left unmodified. To be used if customer-specific Ethernet settings are used.
Discovery defaults: When saving the above settings, all other settings are
returned to Scantech factory defaults.
Ethernet Configuration
62
6.5
PHYSICAL CONNECTION
RJ-45 Connector:
Diagram of cable between
Discovery and network connection:
Use a standard, ‘8 pin’, 1-to-1
Ethernet network cable to connect
the Discovery to your ethernet
network.
See page 32 for the physical location of the connector.
6.6
Q & A , BASIC ETHERNET TROUBLESHOOTING
Questions and Answers:
What if I don’t have a DHCP service running?
You have to reserve and configure a (unique) address for every single SG20 Discovery.
How many Discoveries can I include?
Just as many IP addresses there are available.
What happens if I give two terminals the same address or the same address of
another device?
Both devices will respond to requests/commands simultaneously and
therefore will not operate properly.
How can I check if the IP address which I have chosen for the SG-20 terminal is
free?
Link the Discovery to the network and PING the device in a DOS box,
C:\> ping 192.137.81.210 a
Typical Response if there already was a device on that IP address
192.137.81.210:
Scantech-ID Discovery SG-20
Pinging 192.137.81.210 with 32 bytes of data:
Reply from 192.137.81.210: bytes=32 time=1ms TTL=64
Reply from 192.137.81.210: bytes=32 time=1ms TTL=64
Reply from 192.137.81.210: bytes=32 time=2ms TTL=64
Reply from 192.137.81.210: bytes=32 time=1ms TTL=64
Ping statistics for 192.137.81.210:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 1ms, Maximum = 2ms, Average = 1ms
Response in case IP address 192.137.81.210 is free:
Pinging 192.137.81.210 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.137.81.210:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms
63
Ethernet Configuration
64
6.7
STATUS LEDS
The Discovery/Ethernet Module has four status LED’s:
1.
Serial port (Channel) 1 status (with the Discovery
attached to it)
2. Serial port (Channel) 2 status (currently not in use)
3. Diagnostics
4. Network link status.
These status LED’s can be found:
By lifting the mains PSU from its clamps at the Discovery with P/N A360104
or higher, or
Next to the scanner inside the Discovery with P/N A360103.
See the following table for a complete description of status LED pinout location
and function.
LED
DESCRIPTION
LED FUNCTIONS
1
Serial Port
(Channel) 1
Status
- Lights solid green to indicate there is no
connection
between the Discovery and the network.
- Blinks green to indicate the Discovery is
connected
to the network and active.
2
N/A
3
Diagnostics
Blinks or lights solid red in combination with the
green (Channel 1) LED to indicate diagnostics
and error detection.
Red solid, green (Channel 1) blinking:
1x: EPROM checksum error
2x: RAM error
Scantech-ID Discovery SG-20
65
3x: Network controller error
4x: EEPROM checksum error
5x: Duplicated IP address on the network
(non-fatal error)
6x: Software does not match hardware
(non-fatal error)
Red blinking, green (Channel 1) blinking:
4x: Faulty network connection (non-fatal error)
5x: No DHCP response received (non-fatal
error)
4
6.8
Network
Link Status
Lights solid green to indicate network port is
connected to the network.
NON WINDOWS USERS
Below you find a detailed description how to access and configure the
Ethernetwork parameters of the Discovery/TCP-IP in case you do not use MSWindows. The semantics may vary slightly per Operating system.
Making Connection
The MAC address of the Discovery is temporarily coupled to a (free) IP address
with ARP, open a terminal and input:
1
aarp -s 192.137.81.210 00-20-4A-52-4B-19a
2
Check this with ARP -a:
arp -aa a a the response must be:
Interface: 192.137.81.105 on Interface 0x2000003
Internet Address
Physical Address
Type
192.137.81.143
00-20-4A-52-4B-19
dynamic
Ethernet Configuration
66
192.137.81.210
3
00-20-4A-52-4B-19
static
Start a TELNET connection to configure the unit:
telnet 192.137.81.210 1 a a a
This connection (on port 1) will fail in first instance (after 3 seconds,
abort link), but the SG-20 will register the attempt by enabling the Telnet
service on port 9999.
4
Continue with:
telnet 192.137.81.210 9999a a a
The response must be:
5
6.9
Hit a a and you’ll get in the Configuration screen: (if you wait too long,
the connection will fail and you have to disconnect and re-connect).
Proceed at Point 3 above. You may skip steps 3 .. 7 of section 6.4 in
case you run a DHCP service on your network.
RELATED DOCUMENTS
Discovery User’s Manual Scantech P/N A362001
Version
2.1
Discovery Product Support CD-ROM P/N A362103
Version
2.1
Lantronix CoBox Micro Manual
Revision
http://www.lantronix.com/support/
D
Reference Cobox Micro.
67
Chapter 7 Maintaining the Discovery
Ethernet Configuration
68
7.1
CLEANING
The Discovery requires little maintenance. Only occasional cleaning of both
windows is necessary to remove dirt and fingerprints. Cleaning can be
performed during operation with a non-abrasive glass spray cleaner and a soft
lint-free cloth.
Clean the cover and window of the Discovery every now and then. Take care of
the following:
•
Use a mild glass spray cleaner;
•
Spray the cleaner on a soft, lint-free cloth;
•
Wipe the Discovery clean.
IMPORTANT
Clean the display very carefully. It is scratch sensitive.
IMPORTANT
The exterior of the Discovery should NOT be cleaned with
cleaners containing:
•
Aromatic hydrocarbons
•
Chloride
•
Acids, oxydizing agents
•
Abrasives
•
Other aggressive cleaners
69
Appendices
A
Connector types and pin definitions............................................ 70
B
Control commands ................................................................... 72
C
Character sets ......................................................................... 83
D
Factory Default Settings ............................................................ 87
E
Downloading images, icons and fonts into the Discovery.............. 90
F
Demo bar codes....................................................................... 98
G
Barcode set up......................................................................... 99
H
Frequently Asked Questions..................................................... 104
I
Discovery Project tasks........................................................... 116
J
Discovery in SG-10 mode ........................................................ 118
K
Technical specifications .......................................................... 119
70
A
CONNECTOR TYPES AND PIN DEFINITIONS
RS-232 cable
RS-422 cable
Back Office/RS232
SG-20 (RS-232)
(Demo cable P/N A361701)
Sep. box (RS-422)
SG-20 (RS-422)
(Demo cable P/N A351701)
Host/9 p.Sub-D
Female
RJ-45/SG-20
PIN
SIGNAL
SIGNAL
PIN
2
RXD
TXD
3
TXD
5
RJ-45
RJ-45
PIN
SIGNAL
SIGNAL
PIN
8
1
IO-A
IO-Y
3
RXD
7
2
IO-B
IO-Z
4
GND
GND
6
3
IO-Y
IO-A
1
7
RTS
CTS
4
4
IO-Z
IO-B
2
8
CTS
RTS
5
Cable specification:
Cable specification:
Shielded data cable
Maximum length: 15 meter
Double twisted pair, unshielded
Impedance: 100 -150 Ohm
Maximum length : 1200 meter
RS485 Network cable
(Demo cable P/N A351705)
RJ-45
RJ-45
PIN
SIGNAL
SIGNAL
PIN
1
IO-A
IO-A
1
2
IO-B
IO-B
2
Cable specification: 2 wire UTP
Imp: 100 - 150 Ohm CAT 5
Maximum length : 1200 meter
Distance splitter
terminal: 4M
ATTENTION
In the normal course of events, the 3
cables above are supplied and
installed by the Scantech Distributor.
For test and demo purposes they are
(in a short version) available at
Scantech.
Scantech-ID Discovery SG-20
71
P/N A351702
Host / RS-232
Host / RS-232
P/N …….
Separator Box or
Host / RS-232
Network Box
Host / RS-232
Network Box
For Version 2 only.
For Classic version
(also suitable for Version 2).
Host/9 p.
Sub-D Female
Separator Box or
(Version 2 can also use cable of Classic Version)
RJ-11/12 6p
Host/9 p.
Sub-D Female
Host/9 p.Sub-D
Male
PIN
SIGNAL
SIGNAL
PIN
PIN
SIGNAL
SIGNAL
PIN
2
RXD
TXD
3
2
RXD
TXD
2
3
TXD
RXD
2
3
TXD
RXD
3
5
GND
GND
5
5
GND
GND
5
IMPORTANT
All undefined connector pins in the cable diagrams are reserved and
may not be used.
72
B
Appendices
CONTROL COMMANDS
Introduction
The Discovery SG-20 is controllable and easily configurable by means of ESC
(escape) commands to customise the following parameters;
The eleven scrolling text lines
Cursor Control
Loading and sequencing of full screen images
Button activation
Terminal Control, i.e. turning on/off the Discovery, scanner and/or display
Terminal timing: speed of screens, texts etc.
Setting of Serial Ports
Re-routing the data of optional handheld scanner, reader or printer
Default display behaviour, i.e. scrolling method of texts and images during
rest.
This Appendix provides you with the complete command set, including subparameters and a series of examples.
Display messages
Initially eleven messages are present in the memory of the Discovery. These
messages have two functions. First, they invite a user to scan an article. Second,
they give information about the current state of the Discovery. See appendix C
and D for supported characters.
The time a message is displayed (Talt) can be set.
The standard messages are:
Message
Message
Message
Message
1: “Scan your article”
2: “What’s the price?”
3: “Check your bonus card”
4: “Check the Euro price”
Scantech-ID Discovery SG-20
73
Message 5: “Calculate total price”
Message 6: “One moment…”
This message appears on the display when waiting for a response after
sending data to the host system. If required, this message may be turned of.
Message 7: “Discovery Offline”
This message appears on the display when the control commands disables the
Discovery SG-20
Message 8: “Please scan again”
This message appears on the display when the Discovery does not get a
response from the back office after canning a barcode within the time interval
Twait
Message 9: “Please insert card”
Message 10: “Please remove card”
Message 11: “Please remove invalid card”
Display command characters
Introduction
The display of a Discovery can be programmed from the back office system.
Several parameters can be programmed, e.g. message text and cursor position.
Two types of data are available to program the display.
1. The first data type is the printable ASCII data. These characters are directly
printed on the display. These characters stand for the hexadecimal values $20 $7F (see the ASCII table in Appendix C).
2. The second data type is the display command data. These characters are
preceded by the <ESC> character ($1B hexadecimal).
The display commands and characters are summarised in the tables on the next
pages.
Display programming examples
The following examples give an impression of the way you can program the
display of the Discovery. The commands described in the table in this section
should be typed as ASCII characters. For instance, the hexadecimal value $1B is
the <ESC>-key on your keyboard. Refer to the ASCII table in Appendix C to make
the conversion from a hexadecimal value to an ASCII value.
74
Appendices
Example 1
Instead of default message no.1: “Scan your article” you want this message to
be: “Please scan your article”. This message contains 24 characters, spaces
included. You have to type the following commands on the keyboard of your back
office:
COMMAND or data string
COMMENT
<ESC><1><H> “Please scan your
article”
<ESC> is $1B
<1> is $31,
<H> is $48, which is the result of the
counting 24 positions from hex, value
$30 up to $48.
Example 2
The scrolling messages & images should alternate every 2 seconds:
COMMAND or data string
COMMENT
<ESC><P><2>
<P> is $50, which specifies the
variable T_alt.
<2> is the two seconds you want to
set.
Example 3
You want to activate Button #1 and display an icon next to the first button:
COMMAND or data string
COMMENT
<ESC><;><1>
<;> is $3B; <1> is icon number 1.
Scantech-ID Discovery SG-20
75
Example 4
How to create this screen:
COMMAND or data string
COMMENT
<ESC> 0x43 0x71
Show Image 1 (=Large chipcard)
and
don’t erase it when text is printed
<ESC> 0x3D 0x31 0x30 0x30 0x30
Set fontsize to small, inverted off,
italic off, don’t save
<ESC> 0x27 0x3a 0x31
Set cursor to 10,1
"Your name"
Print text
<ESC> 0x27 0x37 0x35
Set cursor to 7,5
"Bonus points"
Print text
<ESC> 0x3D 0x32 0x30 0x30 0x30
Set fontsize medium, inverted off,
italic off, don’t save
<ESC> 0x27 0x3a 0x31
Set cursor to 10,1
"A. Kara"
Print text
<ESC> 0x27 0x37 0x33
Set cursor to 7,3
"34527"
Print text
*1
76
Appendices
Example 5
How to create this screen:
COMMAND or data string
COMMENT
<ESC> 0x43 0x72
Show Image 2 (=Special Offer
screen) and
don’t erase it when text is printed
<ESC> 0x3D 0x31 0x30 0x30 0x30
Set fontsize to small, inverted off,
italic off, don’t save
<ESC> 0x27 0x30 0x30
Set cursor to 0,0
"Mineral Water"
Print text
<ESC> 0x27 0x30 0x31
Set cursor to 0,1
"1 Ltr."
Print text
<ESC> 0x3D 0x32 0x30 0x30 0x30
Set fontsize to medium, inverted off,
italic off, don’t save
<ESC> 0x27 0x41 0x30
Set cursor to 17,0
0x80
Print the Euro sign
"0.98"
Print text
<ESC> 0x3D 0x32 0x30 0x31 0x30
Set fontsize to small, inverted off,
italic on, don’t save
<ESC> 0x27 0x30 0x35
Set cursor to 0,5
"Second bottle"
Print text
<ESC> 0x27 0x30 0x36
Set cursor to 0,6
"half price"
Print text
*1
Scantech-ID Discovery SG-20
77
Example 6
Show the text 'Hello World' permanently when the Discovery is idle.
COMMAND or data string
COMMENT
<ESC> 0x25
Clear the screen
<ESC> 0x27 0x30 0x33
Set cursor to 0,3
"Hello World"
Print text
<ESC> 0x26 0x31
Give the 'Lock screen' command
Example 7
Show Image #5 permanently when the Discovery is idle.
COMMAND
COMMENT
<ESC> 0x26 0x32 0x35
Lock screen using bitmap #5
Example 8
How to create this screen with icons:
COMMAND or data string
COMMENT
<ESC> 0x25
Clear the screen
<ESC> 0x3b 0x31
Show icon 1
*1
<ESC> 0x3b 0x32
Show icon 2
*1
78
Appendices
*1
<ESC> 0x3b 0x33
Show icon 3
<ESC> 0x3D 0x31 0x30 0x30 0x30
Set fontsize to small, inverted off,
italic off, don’t save
<ESC> 0x27 0x30 0x30
Set cursor to 0,0
"Calculate grand total"
Print text
<ESC> 0x27 0x30 0x32
Set cursor to 0,2
"Check loyalty card"
Print text
<ESC> 0x27 0x30 0x32
Set cursor to 0,4
"Article information"
Print text
<ESC> 0x26 0x31
'Lock screen' command to ensure
that this screen returns after barcode
information has been shown.
*1
: Image or icon already pre-loaded, see Appendix D for details.
Scantech-ID Discovery SG-20
79
80
Appendices
Scantech-ID Discovery SG-20
81
82
Appendices
Scantech-ID Discovery SG-20
C
83
CHARACTER SETS
Default Character Set 1
CodePage 850
0
1
30
2
3
4
5
6
7
8
9
0x20
0x21
0x22
0x23
0x24
0x25
0x26
0x27
40
0x28
0x29
0x2A
0x2B
0x2C
0x2D
0x2E
0x2F
0x30
0x31
50
0x32
0x33
0x34
0x35
0x36
0x37
0x38
0x39
0x3A
0x3B
60
0x3C
0x3D
0x3E
0x3F
0x40
0x41
0x42
0x43
0x44
0x45
70
0x46
0x47
0x48
0x49
0x4A
0x4B
0x4C
0x4D
0x4E
0x4F
80
0x50
0x51
0x52
0x53
0x54
0x55
0x56
0x57
0x58
0x59
90
0x5A
0x5B
0x5C
0x5D
0x5E
0x5F
0x60
0x61
0x62
0x63
100
0x64
0x65
0x66
0x67
0x68
0x69
0x6A
0x6B
0x6C
0x6D
110
0x6E
0x6F
0x70
0x71
0x72
0x73
0x74
0x75
0x76
0x77
120
0x78
0x79
0x7A
0x7B
0x7C
0x7D
0x7E
0x7F
0x80
0x81
130
0x82
0x83
0x84
0x85
0x86
0x87
0x88
0x89
0x8A
0x8B
140
0x8C
0x8D
0x8E
0x8F
0x90
0x91
0x92
0x93
0x94
0x95
150
0x96
0x97
0x98
0x99
0x9A
0x9B
0x9C
0x9D
0x9E
0x9F
160
0xA0
0xA1
0xA2
0xA3
0xA4
0xA5
0xA6
0xA7
0xA8
0xA9
170
0xAA
0xAB
0xAC
0xAD
0xAE
0xAF
0xB0
0xB1
0xB2
0xB3
180
0xB4
0xB5
0xB6
0xB7
0xB8
0xB9
0xBA
0xBB
0xBC
0xBD
190
0xBE
0xBF
0xC0
0xC1
0xC2
0xC3
0xC4
0xC5
0xC6
0xC7
200
0xC8
0xC9
0xCA
0xCB
0xCC
0xCD
0xCE
0xCF
0xD0
0xD1
210
0xD2
0xD3
0xD4
0xD5
0xD6
0xD7
0xD8
0xD9
0xDA
0xDB
220
0xDC
0xDD
0xDE
0xDF
0xE0
0xE1
0xE2
0xE3
0xE4
0xE5
230
0xE6
0xE7
0xE8
0xE9
0xEA
0xEB
0xEC
0xED
0xEE
0xEF
240
0xF0
0xF1
0xF2
0xF3
0xF4
0xF5
0xF6
0xF7
0xF8
0xF9
250
0xFA
0xFB
0xFC
0xFD
0xFE
0xFF
84
Appendices
Default Character Set 2
CodePage 1252
(ISO/IEC 10646-1:2000)
0
1
30
2
3
4
5
6
7
8
9
0x20
0x21
0x22
0x23
0x24
0x25
0x26
0x27
40
0x28
0x29
0x2A
0x2B
0x2C
0x2D
0x2E
0x2F
0x30
0x31
50
0x32
0x33
0x34
0x35
0x36
0x37
0x38
0x39
0x3A
0x3B
60
0x3C
0x3D
0x3E
0x3F
0x40
0x41
0x42
0x43
0x44
0x45
70
0x46
0x47
0x48
0x49
0x4A
0x4B
0x4C
0x4D
0x4E
0x4F
80
0x50
0x51
0x52
0x53
0x54
0x55
0x56
0x57
0x58
0x59
90
0x5A
0x5B
0x5C
0x5D
0x5E
0x5F
0x60
0x61
0x62
0x63
100
0x64
0x65
0x66
0x67
0x68
0x69
0x6A
0x6B
0x6C
0x6D
110
0x6E
0x6F
0x70
0x71
0x72
0x73
0x74
0x75
0x76
0x77
120
0x78
0x79
0x7A
0x7B
0x7C
0x7D
0x7E
0x7F
0x80
0x81
130
0x82
0x83
0x84
0x85
0x86
0x87
0x88
0x89
0x8A
0x8B
140
0x8C
0x8D
0x8E
0x8F
0x90
0x91
0x92
0x93
0x94
0x95
150
0x96
0x97
0x98
0x99
0x9A
0x9B
0x9C
0x9D
0x9E
0x9F
160
0xA0
0xA1
0xA3
0xA4
0xA5
0xA6
0xA7
0xA8
0xA9
170
0xAA
0xAB
0xAC
0xAD
0xAE
0xAF
0xB0
0xB1
0xB2
0xB3
180
0xB4
0xB5
0xB6
0xB7
0xB8
0xB9
0xBA
0xBB
0xBC
0xBD
190
0xBE
0xBF
0xC0
0xC1
0xC2
0xC3
0xC4
0xC5
0xC6
0xC7
200
0xC8
0xC9
0xCA
0xCB
0xCC
0xCD
0xCE
0xCF
0xD0
0xD1
210
0xD2
0xD3
0xD4
0xD5
0xD6
0xD7
0xD8
0xD9
0xDA
0xDB
220
0xDC
0xDD
0xDE
0xDF
0xE0
0xE1
0xE2
0xE3
0xE4
0xE5
230
0xE6
0xE7
0xE8
0xE9
0xEA
0xEB
0xEC
0xED
0xEE
0xEF
240
0xF0
0xF1
0xF2
0xF3
0xF4
0xF5
0xF6
0xF7
0xF8
0xF9
250
0xFA
0xFB
0xFC
0xFD
0xFE
0xFF
Scantech-ID Discovery SG-20
85
Font set 1 and 2 (shown on the previous pages) are fixed fonts and cannot be
changed. They cover virtually all western character sets.
For those who want (or need) more, Fontsets 4 to 9 are available. Though default
filled with some sample fonts, they can be freely filled and edited with any font
you like. Thus you can change both the displayed character itself as well as the
style of these characters. Feel free to create your own creative font, or just copy
an existing set and change where required to suit all your needs.
See also Appendix E: “Downloading images, icons and fonts into the Discovery”.
Font set 3 is reserved for compatibility with SG-10 and should normally not be
selected.
We have filled some of the free definable sets with some sample data, those are
displayed hereunder. Please consider those just as an example. If you plan to use
fontset 4...9, it is your responsibility to have them loaded with clear and correct
fontdata.
Font set 4
(Since this is a free definable set, just a compressed table is shown)
86
Appendices
Font set 5
Font set 6
Font set 7
Font set 8
Scantech-ID Discovery SG-20
D
87
FACTORY DEFAULT SETTINGS
Screen 4.2
2)
If chosen 'YES', the Discovery returns to factory default settings .
Interface mode
Serial port settings :
Port 1 : Baudrate
Parity
Stopbits
Databits
Echo
FlowControl
Suffix
Device type
Port 2 : Baudrate
Parity
Stopbits
Databits
Echo
FlowControl
Suffix
Device type
Port 3 : Baudrate
Parity
Stopbits
Databits
2
Not Modified
Not Modified
Not Modified
Not Modified
Not Modified
Not Modified
Not Modified
CRLF
Host
9600
None
1
8
Off
RtsCts
CR
Hand held
9600
None
2
8
This may differ from the settings of the units at the moment of shipping from the Scantech ID
Factory.
88
Appendices
Port 4 :
Echo
FlowControl
Suffix
Device type
Baudrate
Parity
Stopbits
Databits
Echo
FlowControl
Suffix
Device type
Off
Off
CR
Polaris
9600
None
1
8
Off
Off
CR
Chipcard
Buffered
Message 1
Message 2
Message 3
Message 4
Message 5
Message 6
x=0, y=0, Down scrolling
Scan your article
What's the price?
x=0, y=1, Up scrolling
Check your bonus card x=0, y=2, Down scrolling
Check the €uro price x=0, y=3, Up scrolling
Calculate total price
x=0, y=4, Left scrolling
One moment...
x=0, y=5, No scrolling
Message 7
Discovery offline
Printer port mode
Internal messages :
Message 8 Please scan again
Message 9 Please insert card
Message 10 Please remove card
Message 11 Remove invalid card
x=0, y=6, No scrolling
x=0, y=7, No scrolling
x=0, y=7, No scrolling
x=0, y=7, No scrolling
x=0, y=7, No scrolling
Message order of appearance
M1,M2,I1,M3,M4,I2,M5,M4,I3,M3,M2,I4,M1,M2,I5,M3,M4,I6,
M5,M4,I7,M3,M2,I8,M1,M2,I9,M3,M4,I10,M5,M4,I11,M3,M2,I12
(Mn = Message #n, In = Image #n)
Timing :
TAlt
3 secs
THold
5 secs
TWait
5 secs
RS485 network address
RS485 mode
Configuration PIN-code
Flash PIN-code
1
Standard
1-2-3-4
1-2-3-4
Scantech-ID Discovery SG-20
89
Buttons
Button #1 image
Button #2 image
Button #3 image
Button #4 image
All disabled
Icon image #1
Icon image #2
Icon image #3
Icon image #4
Character set
Font type
1
Normal size (10x16), Italic off, Inverted off
Speaker
Normal loudness and pitch
SG Mode
SG20
Barcode Code Identifiers On
Scrolling messages/images
Static text/image
On
Off
Contrast
Not Modified
Eeprom auto store
On
Internal scanner Serial number
Empty
(Which means: The internal barcode scanner will
be initialised the first time the Discovery
restarts)
SG21 modus POS Station
SG21 modus MFS Station
SG21 modus Country
1
1
2 (=Country code 044, UK)
Ethernet module miscel. sett.
Leave unmodifed
Send Ack after Eeprom write
Off
Chipcard command set
To defaults (ask Scantech ID for more details).
90
Appendices
E
DOWNLOADING IMAGES, ICONS AND FONTS INTO THE
DISCOVERY
The Discovery is equipped with re-programmable Flash Memory which can hold
the following information:
9 Character sets (fonts), 6 are free definable.
36 Full screen images
32 Icons
Fonts
Every character set consists of character numbers 32 (= space) through 255 (=
224 characters). A single character is defined inside a pixelarea of 10 x 16
pixels. Only bits 0-5 of the flash memory bytes are used for pixel information;
Therefore 1 character uses 32 bytes of memory.
Example of a simple 'A' character :
PIXEL
---------------------- ------- - ----- --- ---- --- ---- --- ------ ----- -- ----- -- ----- -- ----- -- ----- -- ----- --------------------
BINARY NOTATION
00000000 00000000
00000000 00000000
00000000 00100000
00000001 00010000
00000010 00001000
00000010 00001000
00000010 00001000
00000011 00111000
00000100 00000100
00000100 00000100
00000100 00000100
00000100 00000100
00000100 00000100
00000100 00000100
00000000 00000000
00000000 00000000
HEX NOTATION
0x00 0x00
0x00 0x00
0x00 0x20
0x01 0x10
0x02 0x08
0x02 0x08
0x02 0x08
0x03 0x38
0x04 0x04
0x04 0x04
0x04 0x04
0x04 0x04
0x04 0x04
0x04 0x04
0x00 0x00
0x00 0x00
A whole character set uses 224 x 32 = 7168 (0x1C00) bytes. Only Set3, which
contains the Sg10 special character set, contains 255 characters (0 - 254) and
therefore takes 8160 bytes of memory.
The Discovery uses 1 complete sector of flash memory (= 65536 bytes) for its
character sets :
Scantech-ID Discovery SG-20
91
Address
Contents
User definable ?
50000
51C00
53800
557E0
573E0
58FE0
5ABE0
5C7E0
5E3E0
Charset1
Charset2
Charset3 (SG10 set 1 en SG10 set 2)
Charset4
Charset5
Charset6
Charset7
Charset8
Charset9
Fixed
Fixed
Fixed
User
User
User
User
User
User
NOTE
Only character sets 4 through 9 are user definable. If tried to write
to other locations, it is simply ignored by the Discovery.
Full screen images and icons
The Discovery uses one flash sector (sector 6) to store all full screen images and
icons. A full screen image is defined inside a pixelarea of 240 x 128 pixels. An
icon is defined inside a pixelarea of 24 x 32 pixels. Just like the font sets, only
bits 0-5 of the flash memory are used for the bitmap contents. This means that a
full screen image uses 5120 (0x1400) bytes of memory. An icon uses 128
(0x80) bytes of memory.
This results in the following memory map (every bitmap is user definable) :
Address
------60000
60080
60100
60180
60200
60280
60300
60380
60400
60480
60580
.
.
Contents
-----------------Icon 1
Icon 2
Icon 3
Icon 4
Icon 5
Icon 6
Icon 7
Icon 8
Icon 9
Icon 10
Icon 11
.
.
92
Appendices
60F00
60F80
Icon 31
Icon 32
61000
62400
63800
64C00
.
.
6B000
6C400
6D800
6EC00
Image
Image
Image
Image
.
.
Image
Image
Image
Image
1
2
3
4
9
10
11
12
As of version SA0A0808, 2 extra sectors (sectors 3 and 4) are
reserved for 24 additional images:
30000
31400
32800
33C00
.
.
3B400
3C800
3DC00
Image
Image
Image
Image
.
.
Image
Image
Image
13
14
15
16
22
23
24
40000
41400
42800
43C00
.
.
4B400
4C800
4DC00
Image
Image
Image
Image
.
.
Image
Image
Image
25
26
27
28
34
35
36
What are S-Records ?
An S-record file consists of a sequence of specially formatted
ASCII character strings and should be less than or equal to 78
bytes in length. One single S-record contains a target address
and a number of bytes, which are to be stored starting at this
address. There's also a checksum at the end of the record, for
verification purposes.
The general format of an S-record is built up as follows:
+-------------------//------------------//-----------------------+
| type | count | address |
data
| checksum |
+-------------------//------------------//-----------------------+
Scantech-ID Discovery SG-20
93
Type
A char[2] field. These characters describe the type of record
(S0, S1, S2, S3, S5, S7, S8, or S9).
Only records S0, S1, S2, S7, S8 and S9 are supported by the Discovery
Count
A char[2] field. These characters when paired and interpreted as a
hexadecimal value, display the count of remaining character pairs in the record.
Address
A char[4,6, or 8] field. These characters grouped and interpreted as a
hexadecimal value, display the address at which the data field is to be loaded into
memory. The length of the field depends on the number of bytes necessary to
hold the address. A 2-byte address uses 4 characters, a 3-byte address uses 6
characters, and a 4-byte address uses 8 characters.
Data
A char [0-64] field. These characters when paired and interpreted as hexadecimal
values represent the memory loadable data or descriptive information.
Checksum
A char[2] field. These characters when paired and interpreted as a
hexadecimal value display the least significant byte of the ones complement of
the sum of the byte values represented by the pairs of characters making up the
count, the address, and the data fields.
Record types supported by the Discovery :
S0 Record
The type of record is 'S0'. The address field is unused and will be filled with zeros
(0x0000). The Discovery only uses S0 records as indication of the start of the
file.
S1 Record
The type of record field is 'S1'. The address field is interpreted as a 2-byte
address. The data field is composed of memory loadable data.
S2 Record
The type of record field is 'S2'. The address field is interpreted as a 3-byte
address.
94
Appendices
S7 Record
The type of record field is 'S7'. The address field contains the starting execution
address and is interpreted as 4-byte address. There is no data field.
S8 Record
The type of record field is 'S8'. The address field contains the starting execution
address and is interpreted as 3-byte address. There is no data field.
S9 Record The type of record field is 'S9'. The address field contains the
starting execution address and is interpreted as 2-byte address. There is no data
field.
S7, S8 and S9 records are interpreted by the Discovery as 'End of File' and serve
no other purpose.
Note 1
Note 2
a CR.
The Discovery uses the Motorola S-Rec format.
When sending a S-Record to the Discovery, it should be followed by
Example of an S-rec file :
This is an example of an S-rec file, describing the pixels of icon #1, which looks
like this :
The File :
S0030000FC
S2240600003F3F3F3C20000004200000072000000720000007200000072000000720000007CE
S22406002020000007200000072000000720000007200000072000000720000007200000077D
S22406004020000007200000072000000720000007200000072000000720000007200000075D
S22406006020000007200000072000000720000007200000073F3F3F3F0F3F3F3F0F3F3F3F1E
S804000000FB
Explanation of the 2nd line of the file :
S2240600003F3F3F3C20000004200000072000000720000007200000072000000720000007CE
This is an S2 record, which contains an address followed by the data to be written.
S2240600003F3F3F3C20000004200000072000000720000007200000072000000720000007CE
Hex value 24 = 36 decimal.
36 byte-pairs follow after this (3 address, 32 data, 1 checksum)
S2240600003F3F3F3C20000004200000072000000720000007200000072000000720000007CE
The address at which the first databyte of this line will be programmed in this
case 0x060000, the location of the icon #1.
Scantech-ID Discovery SG-20
95
S2240600003F3F3F3C20000004200000072000000720000007200000072000000720000007CE
The databytes to be programmed. These bytes form the top eight pixelrows
of the icon.
S2240600003F3F3F3C20000004200000072000000720000007200000072000000720000007CE
The Checksum
How to download S-Records to the Discovery.
Note : Only one sector at a time can be written to. This means that font sets can
not be downloaded together with images and Icons.
The Discovery uses S-Records for downloading flash information. Once you have
created an S-Record file, containing your images or fonts, you probably would
like to upload these to a Discovery.
This can be achieved following these steps :
A
B
Initiating the download sequence.
Sending the S-Records
A
Initiating the download sequence.
The Discovery first has to clear the target area inside the flash memory, before
anything can be written to it.
*
Send the following command to the Discovery:
0x08<Start Address><Length>
0x08
The command
Start Address
The start address of the area which is to be cleared.
Field length : 5 bytes.
Use ASCII characters to form the address in hex notation.
eg : 0x52A00 should be formed as ASCII characters
'5' '2' 'A' '0' '0'
(or in hex values : 0x35 0x32 0x41 0x30 0x30)
Length
The length of the area to be cleared
Field length : 4 bytes
Use ASCII characters to form the length in hex notation.
96
Appendices
eg : 0x1400 should be formed as ASCII characters
'1' '4' '0' '0' (or in hex values : 0x31 0x34 0x30 0x30).
After receiving the command, the Discovery checks if the user is permitted to
clear the region.
If anything is incorrect (that is, the start address is out of region (see also the
memory map explanation), or the length is too high) the Discovery responds with
a 'NACK' - character (0x15).
If everything checks out correctly, the Discovery starts to clear the given region.
This process takes a while and can be followed on the display of the Discovery
itself.
*
After finishing the clearing process the Discovery returns :
ACK (0x06) If everything has turned out OK.
NACK (0x15) If something went wrong.
B Sending the S-Records
If the initialisation process of step 1 has performed successfully, the Discovery
has returned the ACK (0x06) character and is waiting for the first S-Record (the
S0-record) to come in.
Now the host should send the S-Records (usually directly out of a text file) to the
Discovery.
Note: Every S-Record should be followed by a CR (0x13) character, also in
RS485 mode.
After sending an S-Record, the Host should wait for a response of the Discovery,
which could be :
ACK (0x06)
OK, you may send the next S-Record
NACK (0x15)
reasons :
Error, something went wrong due to a number of possible
- Checksum of S-Record is incorrect due to interference or
an error in the file.
Scantech-ID Discovery SG-20
97
- S-Record too long.
- Address of the S-Record out of range.
- Write to Flash not successful.
Some notes :
It's up to the host to take the proper actions, when for example the Discovery
doesn't respond in time (Timeout) or when a NACK has been transmitted. E.g.
a number of retries could be performed until a certain limit.
When the Discovery has received an S7, S8 or S9 record, it assumes the
upload action is finished.
An upload action can only be interrupted by a Reset (software or hardware) or
an ESC character.
The Windows driver SG.DLL or SG20.DLL contains a special function to
download your s-rec file, using RS232, RS422 or RS485. The Windows
Discovery TCPIP Terminal also contains an option to upload s-records.
98
F
Appendices
DEMO BAR CODES
For use with demo utility I-Start or U-Start.
UPC A
0
12345 67890
UPC E
0
123456
5
EAN 13
1 234567 890128
EAN 8
1234 5670
5
Scantech-ID Discovery SG-20
G
99
BARCODE SET UP
To change the parameters of the internal scanner, follow the flow-chart shown in
this section.
Start
Open scanner
programming
mode: CODE 1.1
No
Change settings
by scanning bar
codes
Finished?
Yes
Close scanner
programming
mode: CODE 1.1
END
Procedure for programming with bar codes.
Close programming mode
without updating:
CODE 1.2
100
Appendices
Bar Codes To Program the Scanner
Open Programming Mode
and close (with update)
EAN/UPC On
Exit programming mode
without update
EAN/UPC + AddOn
Scantech-ID Discovery SG-20
Code 128/EAN 128 On
101
Code 128/EAN 128 Off
Code 39 On
Code 39 Off
Codabar On
Codabar Off
102
Appendices
Interleaved 2/5 On
Setting min.length Interleaved 2/5
Length
6
Interleaved 2/5 Off
Length
4
Length
8
Scantech-ID Discovery SG-20
103
Length
10
Length
12
Length
14
Length
16
104
Appendices
H
FREQUENTLY ASKED QUESTIONS
INDEX
H-1
1.
General
2.
I-Start/ U-Start and the SG-20 Users Manual
3.
Drivers & Operating Systems
4.
Interfaces & Cables
5.
Networking
6.
SG-10 Compatibility
7.
Competitive Compatibility
8.
Settings
9.
Back-office
10.
Handscanner support
11.
Demo-possibilities and how to get started
12.
Barcodes
13.
Service
14.
Technical Questions & Answers
GENERAL
What is the standard configuration and looks for the Discovery?
Black housing and white characters on blue display and optional with ethernet
interface.
Can we have other colours than black?
Yes, a silver-grey version is available at a surcharge. Other colours are only
available on request, only in large quantities and under specific conditions.
Scantech-ID Discovery SG-20
105
Is every Discovery delivered with a CD-ROM and User’s Manual?
Yes, however with larger orders we apply a ratio: one set per so many units.
Do you have brochures available in other languages?
English & Spanish Brochures are currently available. Other translations are
planned.
Can you generate quickly an image (such as a bitmap) on the Discovery screen?
Sure. You can display up to 36 pre-stored images, even sequential in very high
speed to create animation effects. Additionally these images (full screen or
partial) can be updated from the host computer.
Why isn’t there a “PC-board” inside the Discovery?
It was our design strategy to develop a compact, lean and cost-effective ‘light info
system’, offering all the requirements at absolute maximum reliability at a low
power consumption and for an attractive price. We ensured the availability of the
motherboard for the future.
H-2
I-START/ U-START AND THE SG-20 USER’S MANUAL
Does I-Start have a user-description?
Yes, it installs a really extensive help file on your system. Take a look there!
Dou you have info on Ethernet connection and your program U-Start?
You will find most information you need in this manual, which is also available as
PDF document on the CD. Furthermore the U-Start program is very selfexplanatory. Install it and look what’s happening.
Where do I find the most recent Discovery Command Set?
Once you have installed I-Start or U-Start, you can find a document via
“Start/Programs/Discovery SG-20/ I-Start/Discovery SG20 Command Set” (if you
installed I-Start) or:
“Start/Programs/Discovery SG-20/ U-Start/Discovery SG20 Command Set” (if
you installed U-Start).
Alternatively look on the CD at: “\documentation\Discovery SG-20 Command
Set.pdf”.
106
Appendices
Can I make and download my own full screen images?
Yes, using MS-Paint or a similar program, you can generate your own bitmaps.
Required format: 240 x 128 pixels, 2 bits colourdepth (B&W).
Using I-Start or U-Start (or your own application), you can send it to the Discovery.
Which I-Start/U-Start version do I have?
For I-Start: Click on the Discovery picture in the opening screen.
For U-Start click on the “Scantech–ID” name just above the Discovery screen.
How many demo articles can I store in I-Start or U-Start?
I-Start lets you define up to 50 articles yourself. This is good for demonstrations.
U-Start has 4 standard barcodes pre-programmed. You can find these codes in
this Appendix F.
Please remind that in normal use with a central database, the number of stored
barcodes is unlimited .
The I-Start on my computer does not work 100% correctly with my Discovery unit.
You are probably using an outdated version of I-Start. Due to the strong increase
in screen possibilities, not all I-Start and Discovery terminal firmware versions are
compatible. Make sure you always use the highest release versions. Read the info
documents on your CD. In case of doubt, contact Scantech Technical Support.
Note: all Firmware updates are designed to be fully compatible with existing
applications (on host systems) which are developed according to the Discovery
guidelines.
How do I choose between the different Character sets?
The character-sets can be selected by means of escape-codes. Set 1 and 2 are
based on Codepage 850 and Codepage 1252 respectively.
Look for the extended Discovery Command Set Appendix B.
Does the Discovery display support Cyrillic, Greek, Turkish and ….. characters?
Special characters to be used can be generated using the applicable character
table. See the Manual Appendix C.
Can I display some special national characters?
If you cannot find your characters in de standard character sets (see: Appendix C
of the user manual), you can program or modify your own sets and store max. 6
Scantech-ID Discovery SG-20
107
additional charactersets in your Discovery, so you have complete freedom of
style and type of characters.
What is de difference between I-Start and U-Start?
I-Start is a demonstration tool and info source for the Discovery basic model (RS232/422/485).
It provides a general overview of its capabilities and examples of use. Helpful are
the large Help-file system and some tools to change and load Icons, Screenbitmaps and character sets.
U-Start has similar capabilities, but is exclusively for ethernet versions (TCP/IP) of
the Discovery. Therefore it has some extra network functions.
Very informative is the live-illustration of the Discovery screen on your PC,
showing you how the issued commands are translated into communication
messages!
Can I use I-Start or U-Start as standard application for the Discovery?
No, it’s just a starttool, to familiarise. To get a Discovery running with an existing
application you need some special software on your ‘host’ or ‘server’ system,
which will be supplied by the system integrator. Scantech does not deliver that
application. However there are several tools, sources and sample programs on
the CD for those programmers who like to learn from existing knowledge.
Can I install both I-Start and U-Start?
Yes you can, but be aware that each requires a different type of Discovery
(interfaces).
Do I need special software for the Discovery?
The Discovery itself is standard equipped with all the required embedded
firmware. However on the server-side (your back-office system) you need a
program or routine to take care of communication and a program providing the
information that the Discovery shall display. It is the responsibility of the system
integrator to use his added value here. See the relevant paragraphs in the manual
and on the CD!
108
H-3
Appendices
DRIVERS & OPERATING SYSTEMS
For which Operating Systems (OS) is a Discovery RS-485 network driver available?
WIN 95/98, WIN NT, WIN 2000, WIN XPSCO UNIX, LINUX and Solaris.
What does this driver actually do?
The general function of the Discovery RS-485 network driver is:
Data routing, data formatting/packaging, error correction, terminal control
(switch on/off terminals etc). The driver features an intelligent polling mechanism
(for automatic priority adjustment), up to 32 terminals are addressable and the
driver creates an open interface to the application software.
How does the Back Office computer system talk to the Discovery under WIN
NT/95/98/2000/XP?
RS-485: By means of the Scantech driver SG20.DLL to be installed on the host
(on older systems SG.DLL could still be used).
RS-232/RS-422: Via the Scantech driver SG20.DLL or directly to the COM port.
(On older systems SG.DLL could still be used).
Ethernet: using the standard TCP/IP protocol. To interface your application with
the Discovery we have some source code examples included on the CD and
additionally U-Start shows the exchanged commands on its simulated Discovery
screen.
What is the SG20.DLL?
This is a library of functions under MS-Windows including drivers for the RS-485
network.
Does the Discovery work under DOS?
The Discovery will work under DOS (direct access to the COM port in RS-232 and
RS-422 mode), however Scantech no longer supports the old SG-10 DOS network
driver.
H-4
INTERFACES & CABLES
Which cables are supplied by Scantech?
Refer to the remark in at the end of Appendix A.
Scantech-ID Discovery SG-20
109
What is the difference between RS-232, RS-422 and RS-485, while talking about
the SG-20?
RS-232. The most simple, single unit configuration, full duplex, 4 wires +
ground, maximum distance between the Back Office and the terminal: 15
meters.
RS-422. Single unit configuration, full duplex: sending and receiving data
simultaneously. (in practice: 4 data wires/ crossed) max. distance 1200
meters.
RS-485. Multiple unit network configuration, half-duplex: sending and
receiving on the same two lines, but not simultaneously, (in practice: 2
wires/straight, a driver is necessary to control data traffic) max. distance
1200 meters.
See also the document “SG-20 Discovery Configurations Quick Reference.PDF”.
H-5
NETWORKING
Which type of network should I choose?
For a network of max. 32 units you can use RS-485. Your network will be more or
less dedicated for the Discovery’s. (Under certain conditions also your existing
SG-10’s may share this network).
Ethernet using TCP/IP is required if you want to connect more than 32 units (now
or in the future) or if you want to use the existing network infrastructure. The
required length of new cabling might be much shorter than with other
cablingtypes and if you use an existing infrastructure you gain lots of flexibility.
What’s the advantage of RS-485?
It is an industrial standard, it controls data transmission, is more resilient and has
a higher data security than RS-232. In addition: Once chosen for the RS-485
configuration, expanding the number of SG-20 terminals per store is very easy!
What’s the advantage of Ethernet TCP/IP?
Above the advantages it has higher performance, can be expanded “without any
limits” and can use existing ethernet infrastructure. Since the same cabling may
be used for computers, checkouts, telephones and Discovery’s you are very
110
Appendices
flexible in rearranging your workfloor layout. If organised well, you could even
access your Discovery’s ‘all over the world’.
Which cable type should I use for the network?
For instance: Unshielded Twisted Pair (UTP) CAT5 cable.
See for further cable specifications Appendix A “Connector types and pin
definitions”.
Can I have a network with only one Discovery?
Yes, but the immediate advantage is limited. However, once this ‘mini-network’ is
readily installed, expanding the number of SG-20 terminals on a site is very easy!
Can I upgrade my standard (RS-232/RS-422/RS-485) Discovery to the Ethernet
version?
If you your Discovery has a partnumber A360106 it is in principle
fieldupgradable Ethernet. Units having a lower partnumber can only be updated in
our Scantech Repair Facility
If you plan to use Ethernet, it is always best to order it directly with your
Discovery.
RS-485
What is ‘multidrop’?
The possibility to connect multiple Discoveries to a RS-485 cabling.
What does termination of the RS-485 network mean?
Inside the last Discovery in the network a setting is made to terminate the
network with a resistor, this is done to avoid data echo’s on the network. See
Paragraph 4.1.3.
How can I see what’s going on the RS-485 network?
I-Start is equipped with a network monitor: Select the ‘Network status’ TAB under
I-Start.
Once you’re there you can also turn off and on individual terminals simply by right
clicking on that particular terminal.
Scantech-ID Discovery SG-20
111
Why do I sometimes encounter connection problems?
Check for the right jumper settings. Is the right type of cable used and the max.
length not exceeded? Check the wiring of the cable, connect (as described in the
manual) only the required lines, leave other pins open.
RS-422
How many Discoveries can be connected under RS-422?
In principle one, by applying additional COM ports on the Back Office computer
system you can increase this quantity.
Ethernet
TCP/IP: What length of cables can be used?
In principle ‘limitless’. Ask your network administrator.
Wireless Networking, RFDC
Which Wireless options are available?
The field of wireless data transfer is developing continuous.
Our wireless SG-20 is WiFi compatible (IEEE802.11b) and will follow general
developments of WiFi.
Generally spoken it can be seen as wireless Ethernet. Newer units may be
ordered with an RFDC interface (Radio Frequent Data Communication). Retrofitting
of units with a partnumber of A360104 or lower, is not possible.
H-6
SG-10 COMPATIBILITY
Can the Discovery SG-20 be combined with or joined in an existing SG10 RS-485
network?
Yes, the SG-20 can be configured to be fully compatible with the SG10, just by
setting it in SG-10 mode by means of the buttons.
It is obvious that you limit the displaying possibilities i.e. having only 2 lines
available (in SG-10 mode), rather than the 8 display lines available in SG-20 mode!
At the same time: You cannot download of use bitmap images on the Discovery
screen
112
Appendices
However, in order “to get started” with the Discovery, this is a logical route when
migrating from SG-10 to SG-20.
Can the SG-10 be swapped for a SG-20?
Yes, always set the Discovery in SG-10 mode of course, by means of the buttons.
Talking about network mode: Using the old SG-10/DOS driver, this swap can be
done with the same network box. Under WIN NT a new network box (P/N
A361501 or higher) is needed.
Always set the SG-20 for the right terminal address in the network.
H-7
COMPETITIVE COMPATIBILITY
Can the Discovery SG-20 be mixed in a network with other brands of price
checkers?
The Discovery is not directly compatible with other brands of priceheckers,
however they might co-exist next to each other (see next question).
Can the Discovery SG-20 be mixed with any other make of price checker in an
Ethernet-TCP/IP environment?
In principle, yes. The Discovery is uses standard ethernet conventions.
H-8
SETTINGS
What is the Factory Default communication setting of the Discovery?
For units up to (and including) version A360103 it is: RS-485 mode (not-the-lastterminal-in-the-network) and SG-20 display mode.
For Model A360106 (non-ethernet) it is: RS-485; 9600, 8N2, Echo On RTS/CTS
Off.
Model A360104/5 (or newer ethernet versions): Ethernet; 38.400,8N1, Echo Off,
RTS/CTS on.
Usually on shipping your Discovery is set up with the protocol used in your
environment.
How can the terminal mode and the address be changed (RS-485 or Ethernet)?
Most of the settings can be changed by means of the four buttons.
Scantech-ID Discovery SG-20
113
What is the default authorisation code?
Holding the lower button for about 3 seconds, the terminal will ask for the
authority code.
Just press the 4 buttons from top to bottom in that order. This will open up the
Terminal Configuration Menu. After that follow the indications and icons on the
display.
H-9
BACK-OFFICE
Is logging of the RS-485 network activities possible?
Yes, at the Unix driver there’s a help utility, which can log the network traffic (see
read-me file).
Under Windows: I-Start is equipped with a network monitor: Select the ‘Network
status’ TAB.
H-10 HANDSCANNER SUPPORT
Which handscanner is supported?
The Scantech LR-2000 can be connected internally in the Discovery with an RJ-12
connector. Contact Technical Support for all details and for about other models.
H-11 DEMO POSSIBILITIES & HOW TO GET STARTED
What kind of development package does the system-integrator get from
Scantech?
The Discovery CD-ROM (P/N A362103) contains lots of technical information:
drivers, driver information, free sourcecode examples, extensive help files etc.
An informative Slide Presentation is included as well.
What is a Demo kit?
A Discovery configured in RS-232 mode including the RS-232 cable and
documentation to set up a full demo on a PC. This is available in limited quantities
against SoR conditions.
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Appendices
Does the Discovery have an internal memory for an article database?
No, we have chosen not to do this for the following the reason:
It is crucial that the information given to the consumer on the Discovery display
is correct. The best solution to achieve this high level of data integrity is to draw
the information from ONE central source: The article data-base on the store’s
Back Office computer.
In case the Discovery terminal would contain a local database,
this needs permanent maintenance, generating lots of data traffic.
A local database memory will significantly increase the unit hardware costs.
How can I give a quick demo?
To make your live easier, we’ve given I-Start a data-base with maximum 50 demo
articles.
Once you have installed I-Start, you can define several Barcodes with their price
and description to fill the demo database.
If you like a good show you can personalise the system further with some self
made full screen bitmaps.
Also U-Start has a small demo-facility, however this is limited to only four fixed
barcodes. Just to get the idea.
Via the Windows route: “Start/Programs/Discovery SG-20/Test bar codes” open
the document containing the barcodes. Just print the document and look how it’s
working.
H-12 BARCODES
Which barcode symbologies does the Discovery accept?
Basically all popular symbologies as accepted by the integrated Scantech
scanner: EAN 13, EAN 8, UPC A, UPC E, Add-ons, Code/EAN 128, Interleaved
2/5, Code 39 (full ASCII), Code 32 and Codabar.
H-13 SERVICE
Is the Discovery hot swappable?
Yes, always of course configure the replacing Discovery similar to the old one
Scantech-ID Discovery SG-20
115
with respect to e.g. type of interface, the network address or SG-10 compatibility
mode.
Are new software updates always automatically provided?
Software upgrades are available upon request and will be supplied by E-mail to
our Distributors.
H-14 TECHNICAL QUESTIONS & ANSWERS
What is the ASCII code to put the € (Euro sign) on the screen?
Answer: In characterset 1 or 2, choose (80)HEX or, from your PC/terminal
emulator: ALT + 0128
I can’t download a bitmap image into the Discovery.
Follow carefully al steps of Appendix E, ”Downloading images, icons and fonts into
the Discovery”.
Can I lock the text which I’ve put on the Discovery screen?
Yes: if you program ‘Thold’ to be zero, the product information will remain on the
Discovery screen, until a new message is transmitted from the host.
How do I activate the buttons?
First determine the purpose of the button and design an icon. See I-Start.
Download the icon into the terminal with I-Start and activate the button by sending
the following data string to the terminal: <ESC> (3B)hex <ICONNR>
<ICONNR> = (31)hex for Button 1, (34)hex for Button 4 etc.
As soon as the button is pressed by a user, the terminal will send “BUTn” to the
Back Office computer system. The Back Office will return the information to be
put on the display.
Is there a Spare Parts List?
Yes, see “Discovery SG-20 Parts List.PDF” on your CD-ROM.
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Appendices
I
DISCOVERY PROJECT TASKS
The integration of a Light Information Terminal like the Discovery into a store IT
system is slightly more complex than linking a mouse to your PC. Therefore you
find below ,to prevent any miscommunication, a general guideline describing
“Who Does What While Launching A Discovery Project”.
Scantech supplies:
Discovery Hardware Configuration (excl. network cabling).
Overview of possibilities, features and benefits of the Discovery
See: Product Presentation on the CD-ROM.
Advice which Configuration to choose.
Configuration & Demo software package:
I-Start for the Discovery with RS-485/422/232 interface and
U-Start for the Discovery Ethernet interface.
RS-485 Network Drivers for network controlling at Operating Systems:
Windows 9x/NT/2000/XP, SCO/UNIX, Linux and Solaris, SCO/UNIX, Linux
and Solaris.
Examples of software source code for the application software (on CD-ROM).
Consultancy & Technical Support.
The Distibutor / System Integrator supplies:
The application software linking the Discovery to the Customers’ Product Data
Base. See Chapter 4.3.
Choice of the configuration, depending on:
-
Requirements of the end-user
-
Current Installation
-
Operating System
Installation of the Discovery terminals and the network-cabling
Discovery field-service, implying:
Scantech-ID Discovery SG-20
-
Configuration of the Discovery terminals, through the regular store
application plus the Discovery buttons or alternatively through the
Scantech utilities (I/U-Start).
-
One minute swap time due to smart mounting,
-
No need to open the Discovery.
-
RS-485 Network Trouble shooting facility is available within I-Start
(build up database).
117
118
J
Appendices
DISCOVERY IN SG-10 MODE
The Discovery SG-20 has an operating mode, which makes it downwards
compatible with its predecessor : the ScanGuide SG-10.
This feature makes it rather easy for our Customer base of SG-10 users to
migrate to the SG-20, without any alteration on their BackOffice software. At a
later stage the Discovery BackOffice software can be upgraded, in order to take
full advantage of all the functionality's of the Discovery.
This mode should be used, when using a Discovery in an existing SG-10 RS-485
network (or single unit, using RS-232/RS-422), using application software on the
host which is written to communicate with SG-10s only.
Although it is technically spoken possible to use, we do not recommend using SG10 mode, since it automatically means giving up all the Discovery advantages like
the use of the buttons, bitmaps and more text-lines on the display; the SG-10 only
had 2 lines with 20 positions, SG-20 features 8 lines of 24 characters.
The SG-10-mode can be activated with the ESC command sequence ESC>1 (1B
3E 31) or using the Service menu on the Discovery itself. With ESC>0 (1B 3E
30) you can turn SG-10 mode OFF.
NOTE:
SG-10 emulation mode requires Discovery terminal firmware version
8SA0A0806 or higher.
Scantech-ID Discovery SG-20
K
TECHNICAL SPECIFICATIONS
Discovery SG-20
Electrical
Power supply
voltage
Power
consumption
90-264 V ac 50/60 Hz
Interfaces
RS232, RS422, RS485 and optional Ethernet or WiFi.
10 Watt max
Scanner characteristics
Light source
Depth of field
Scan pattern
Bar code types
Physical
Dimensions
Display
Housing
Window
Environmental
Operating
temperature
Humidity
Safety
Laser Safety
Visible laser diode (630 – 670 nm)
250 mm (= maximum reading distance)
Omnidirectional
EAN/UPC/JAN + Add-on, code 32 (Ital. Pharmacode)
Code 128, EAN 128, Code 39 (+ full ASCII), Code 93,
Codabar, Interleaved 2/5
298 (h) x 181 (w) x 100 (d) mm
Back Lit STN graphical 240x128 pixels
Cycolac
Anti-reflex coated
0°C … 40°C
20% .. 95% RH (non condensing)
IEC 825-1 (1993) Class I, U.S. 21CFR1040 Class IIa
119
120
Appendices
Separator Box/ Network Box - Classic version
Electrical
Power supply
Power consumption
4,65 – 5.5 Vdc
2 Watt
Interfaces
RS-232: optical separation up to 1600V
RS-422: optical separation up to 1600V
RS-485: optical separation up to 1600V
Physical
Dimensions
Housing
Environmental
Operating temperature
Humidity
30x86x125 mm (hxwxd)
Coated steel
0°C … 40°C
20% .. 95% RH (non condensing)
Separator Box/ Network Box – Version 2
(version 2 is fully backward compatible with the classic version)
Electrical
Power supply
Power consumption
5 Vdc ± 5% (double powerplug option)
1 Watt
Interfaces
RS-232: optical separation up to 1600V
(double connector option).
RS-422: optical separation up to 1600V.
RS-485: optical separation up to 1600V.
Physical
Dimensions
Housing
Environmental
Operating temperature
Humidity
25x136x app. 89 mm (hxwxd)
Anodized aluminum
0°C … 40°C
20% .. 95% RH (non condensing)
Scantech-ID Discovery SG-20
121
Programming possibilities of the Discovery SG-20
Integrated Scanner
Communication parameters
Fontsets
Prestored texts
Images
Icons
User defined buttons
Basic animations
Screenmessages
Supported barcode symbologies
For serial and ethernet communication
Predefined sets and Free Definable
Predefined sets and Free Definable
Full size or optional partial size of screen
Add variable icon next to button
Define response and function
Using stored images
Real time display of messages from host
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Appendices
Scantech-ID BV
Amersfoortsestraat 124
3769 AN Soesterberg
The Netherlands
Phone:
Fax:
E-mail:
Internet:
+31 (0)33 469 84 00
+31 (0)33 465 06 15
[email protected]
www.scantech-id.com
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