ICP DAS USA PDS-220F Series User manual

PDS-220 Series User Manual (V1.0, Jun.2010) ----- 1
PDS-220Fx Series
User Manual
Warranty
All products manufactured by ICP DAS are under warranty regarding defective materials
for a period of one year, starting from the date of delivery to the original purchaser.
Warning
ICP DAS assumes no liability for damages resulting from the use of this product. ICP
DAS reserves the right to change this manual at any time without notice. The information
furnished by ICP DAS is believed to be accurate and reliable. However, no responsibility
is assumed by ICP DAS for its use, or for any infringements of patents or other rights of
third parties resulting from its use.
Copyright
Copyright 2010 by ICP DAS. All rights are reserved.
Trademark
Names used are for identification only and may be registered trademarks of their
respective companies.

PDS-220 Series User Manual (V1.0, Jun.2010) ----- 2
Table of Contents
1. INTRODUCTION ..............................................................................................................................................................5
1.1. W HY F IBER O PTIC S OLUTIONS ?................................................................................................................................5
1.2. W HY V X C OMM T ECHNOLOGY ?................................................................................................................................7
1.3. W HY W EB S ERVER T ECHNOLOGY ?..........................................................................................................................9
2. TYPICAL APPLICATIONS FOR THE PDS-220FX ...................................................................................................10
2.1. RS-232/485/422 D EVICE N ETWORKING ....................................................................................................................10
2.2. F IBER I/O A PPLICATIONS .........................................................................................................................................11
2.3. C ONFIGURABLE F IBER O PTIC D ATA L OGGER ........................................................................................................11
3. HARDWARE INFORMATION......................................................................................................................................14
3.1. F EATURES .................................................................................................................................................................14
3.3. PDS-220F X S ELECTION G UIDE ...............................................................................................................................16
3.4. P IN A SSIGNMENTS ....................................................................................................................................................17
4. SETTING UP THE PDS-220FX MODULE...................................................................................................................19
5. CONFIGURATION VIA A WEB BROWSER..............................................................................................................26
5.1. C ONNECTING TO THE PDS-220F X M ODULE ...........................................................................................................26
5.2. N ETWORK S ETTINGS ................................................................................................................................................27
5.3. IP F ILTER S ETTING ..................................................................................................................................................30
5.4. COM P ORT S ETTINGS ..............................................................................................................................................31
5.5. M ISCELLANEOUS SETTINGS .....................................................................................................................................37
6. CONSOLE/TELNET COMMANDS LIST....................................................................................................................39
6.1. O PERATION F LOWCHART ........................................................................................................................................39
6.2. S WITCHING BETWEEN I NIT /N ORMAL M ODES .............................................................................................................40
6.3. C OMMAND L IST .........................................................................................................................................................41
APPENDIX A: LINKING TO A DEVELOPMENT PC ........................................................................................................63
APPENDIX B: FRAME GROUND..........................................................................................................................................66
GLOSSARY................................................................................................................................................................................67
1. ARP (A DDRESS R ESOLUTION P ROTOCOL )..................................................................................................................67
2. C LIENTS AND S ERVERS .................................................................................................................................................67
3. F IRMWARE .....................................................................................................................................................................67
4. G ATEWAY ......................................................................................................................................................................68

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5. ICMP (I NTERNET C ONTROL M ESSAGES P ROTOCOL ).................................................................................................68
6. I NTERNET .......................................................................................................................................................................68
7. IP (I NTERNET P ROTOCOL ) ADDRESS ............................................................................................................................68
8. MAC (M EDIA A CCESS C ONTROL ) ADDRESS ................................................................................................................68
9. O PTICAL FIBER ..............................................................................................................................................................68
10. P ACKET .....................................................................................................................................................................69
11. P ING ..........................................................................................................................................................................69
12. RARP (R EVERSE A DDRESS R ESOLUTION P ROTOCOL )...........................................................................................69
13. S OCKET .....................................................................................................................................................................69
14. S UBNET M ASK ...........................................................................................................................................................69
15. TCP (T RANSMISSION C ONTROL P ROTOCOL )..........................................................................................................70
16. TCP/IP......................................................................................................................................................................70
17. UDP (U SER D ATAGRAM P ROTOCOL )......................................................................................................................70
FAQ .............................................................................................................................................................................................71
1. H OW DO I ACCESS A REMOTE PDS-220F X THAT IS SITUATED BEHIND AN NAT OR FIREWALL ?......................................71
2. H OW DO I OPEN A VIRTUAL COM P ORT GREATER THAN "COM 9" BY CALLING C REATE F ILE () W IN 32 API?.................72
3. D OES THE V X C OMM D RIVER (PC) SUPPORT AUTO - RECONNECTION AFTER FIXING A NETWORK BREAK ?...............73
4. W HY DOESN ' T THE V X C OMM D RIVER (PC) RECEIVE DATA FROM THE PDS-220F X MODULE ?................................74
5. D OES TRANSMISSION SPEED BECOME FASTER WHEN A SERIAL DEVICE IS WORKING WITH S ERIAL TO F IBER OPTIC
DEVICE SERVERS ?...................................................................................................................................................................75
6. W HY DOES THE PDS-220F X MODULE FAIL ON A PUBLIC I NTERNET CONNECTION ?..................................................77
7. C AN I USE THE S ET C OMM S TATE ( ) API TO CHANGE THE B AUD R ATE / DATA FORMAT SETTINGS OF A VIRTUAL
COM P ORT ?...........................................................................................................................................................................79
8. H OW MANY PC S CAN BE CONNECTED TO A SINGLE PDS-220F X DEVICE ?..................................................................79
9. C AN I SEARCH FOR OR CONNECT TO THE PDS-220F X IF THE IP ADDRESS OF MY PC IS NOT IN THE PDS-220F X IP
FILTER LIST ? H OW CAN I SOLVE THIS PROBLEM ?.................................................................................................................81

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Packing List
The shipping package includes the following items:
One PDS-220Fx series hardware module
One printed quick start guide
One software utility CD
Note:
If any of these items is missed or damaged, contact the local distributor for more
information. Save the shipping materials and cartons in case you want to ship in the future.
More Information:
Documentations
CD:\NAPDOS\PDS\PDS-220Fx\Document\
VxComm Driver (Virtual COM)
CD:\NAPDOS\Driver\VxComm_Driver
Firmware
CD:\NAPDOS\PDS\ PDS-220Fx\VxComm\Server(PDS)
MiniOS7
CD:\NAPDOS\PDS\ PDS-220Fx\OS_image
Quick start

PDS-220 Series User Manual (V1.0, Jun.2010) ----- 5
1.Introduction
The PDS-220Fx series is a family of Programmable Device Servers, also known as
"Serial-to-Fiber gateways”, that are designed to enable optical fiber connectivity to be
added to RS-232/422/485 devices. The user-friendly VxComm Driver/Utility allows users
to easily turn the built-in COM ports of the PDS-220Fx series into standard COM ports on
a PC. By virtue of its protocol independence, a small-core OS and high flexibility, the
PDS- 220Fx series is able to meet the demands of every network-enabled application.
The PDS-220Fx series includes a powerful and reliable Xserver programming structure
that allows you to rapidly design robust custom Fiber optics applications. The built-in,
high-performance MiniOS7 boots up the PDS-220Fx in just one second and gives you
fastest responses.
1.1. Why Fiber Optic Solutions?
Fiber optic communication permits transmission of data over longer distances than other
forms of communication because the signals travel along the fiber with minimum loss and
no crosstalk. Fiber optics provides the following important features:
˙Immunity to electromagnetic interference (EMI) — Motors, relays, welders and other
industrial equipment generate a tremendous amount of electrical noise that can cause
major problems with copper cabling.
˙High electrical resistance, making it safe to use near high-voltage equipment or
between areas with different earth potentials.
˙No sparks — important in environments that contain flammable or explosive gas.
˙No electromagnetic radiation, and it is difficult to tap into the signal without causing
disruption, which is an important factor in high-security environments.
Because of these reasons, optical fibers have largely replaced copper wire communications
in core networks in the developed world.

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Applications:

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1.2. Why VxComm Technology?
In general, writing code for a TCP/IP program is more difficult than for a COM port
program, or perhaps the COM port communication system was built many years ago.
As a result, a new technology, VxComm, was developed to virtualize the COM ports
of the PDS-220Fx to allow up to 256 COM ports to be used on the central computer.
The VxComm driver saves time when accessing serial devices through the fiber optic
network without the need for reprogramming the COM port software on the PC.

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The VxComm driver controls all the details of the TCP/IP programming and with the
assistance of PDS-220Fx and VxComm technology, your COM port program will be able
to access your serial devices through the fiber optic network in the same way as it would
through a standard COM port.

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1.3. Why Web Server Technology?
Web server technology enables configuration of the PDS-220Fx via a standard web
browser interface, e.g. Google Chrome, Firefox, Internet Explorer or Mozilla, etc. This
means that it is easy to check the configuration of the PDS-220Fx via a fiber optic network
without needing to install any other software tools, thereby reducing the user’s learning
curve.

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2.Typical Applications for the PDS-220Fx
2.1. RS-232/485/422 Device Networking
--- Using Virtual COM Technology ---
The PDS-220Fx series is designed to allow RS-232/485/422 devices to be connected to
a fiber optic network. The VxComm utility allows the built-in PDS-220Fx COM port to be
virtualized to a standard COM port on a host PC, as shown below:
In the configuration above, Meter-1 is virtualized to link to COM3 on the host PC.
Therefore a program originally designed for the MS-COMM standard can still access the
meter without the need for any modification to the program.
COM1/2 on the PDS-
220Fx is mapped to
COM3/4 o
n the
host
PC
The original COM1/2
on the host PC
COM1/2 on the PDS-
220Fx is mapped to
COM5/6 o
n
the
host