Lumel PD8W User manual

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USER’S MANUAL
RS-485/ETHERNET WI-FI
CONVERTER
PD8W TYPE

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Contents
1. APPLICATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2. CONVERTER SET..........................................................................................10
3. BASIC REQUIREMENTS, OPERATIONAL SAFETY ....................................10
4. INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1. Mounting ..............................................................................................11
4.2. PD8W electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.3. Transmission parameters of the serial interface .............................13
4.4. Converter configuration ....................................................................14
4.4.1. Configuration via USB interface .....................................................15
4.4.2. Device configuration via WLAN interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5. PD8WCONFIG APPLICATION .......................................................................19
5.1. Installation of the application ............................................................19
5.2. Device configuration via WLAN interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.3. Device configuration via USB interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6. WEB BROWSER ............................................................................................25
6.1. Getting started with a web browser ..................................................25
6.2. Logging on...........................................................................................26
6.3. General appearance ...................................................................................26
6.4. Configuration .............................................................................................27
6.4.1. Network configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6.4.1.1. IP Settings (WiFi Settings). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.4.1.2. Local network settings .................................................................29
6.4.1.3. Security settings ...........................................................................30
6.4.1.4. WPA2 security mode setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6.4.1.5. Setting authentication ..................................................................34
6.4.1.6. Network services settings............................................................36
6.4.1.7. IP for forwarding settings.............................................................37
6.4.1.8. Tunnel setting................................................................................38
6.4.1.9. Advanced network settings..........................................................39
6.4.2. Serial port settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
6.4.3. I/O configuration (GPIO) ..................................................................42
6.4.4. Alarms configuration .......................................................................43

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6.4.5. System configuration ......................................................................46
6.4.6. iDigi configuration ...........................................................................49
6.4.7. Users .................................................................................................50
6.5. Applications.........................................................................................52
6.5.1. Ekahau client . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
6.5.2. RealPort ............................................................................................53
6.6. Management ........................................................................................55
6.6.1. Serial Port Management ..................................................................55
6.6.2. Connection Management ................................................................56
6.7. Administration .....................................................................................56
6.7.1. File Management ..............................................................................56
6.7.2. Configuration Back-up/Restoring Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 57
6.7.3. Software Update. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
6.7.4. Restoring default parameters .........................................................59
6.7.5. Device Information...........................................................................59
6.7.6. Rebooting .........................................................................................59
6.8. Logging a user out..............................................................................60
7. OPERATING MODE WITH REALPORT SERVICE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
7.1. RealPort service driver file information ............................................61
7.2. Example of driver installation in Windows XP .................................61
7.3. RealPort driver configuration in Windows XP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
7.4. Example of Lumel Heat and Lumel Process configuration
to work with PD8W.............................................................................64
8. SERIAL BRIDGE MODE WITH THE UDP PROTOCOL ................................64
8.1. Setting serial port transmission parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
8.2. Configuration of client service operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
9. OPERATING MODE WITH TCP SOCKET SERVICE.....................................68
10. TECHNICAL DATA .......................................................................................71
11. ORDERING CODE PD8W.............................................................................73
12. MAINTENANCE AND SERVICE...................................................................74

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1. APPLICATION
RS-485/Ethernet Wi-Fi converter PD8W type allows master
devices to transmit data via a wireless Ethernet Wi-Fi network to the
devices with RS-232 and RS-485 interface.
The converter has three operating modes: RealPort network
service, serial bridge service with the UDP protocol, TCP Socket service.
In the first and third mode, the switching master device of the system
is a PC using Ethernet Wi-Fi interface. In the second mode, the converter
works with a device with Master function and RS-232 and RS-485 serial
interfaces.
The converter PD8W to work with RealPort network service
requires the installation of a virtual serial port driver on a PC with Microsoft
Windows. Thanks to the PD8W type converters, this driver provides the
existing master systems, i.e. programs like Lumel Heat and Lumel En-
ergy, the ability to transmit data between devices with RS-485 or RS-232
interface using Ethernet Wi-Fi network (Fig. 1). When used in this way,
the converter allows to work with one master computer in the given time.
When using PD8W to support Modbus and Lumbus industrial protocols
- its correct interaction with master systems installed on a PC depends
on the built-in mechanisms to control time intervals between the received
transmission characters.
Using PD8W in the second mode, the RS-485 bus can be
expanded with successive segments using additional PD8W convert-
ers and Ethernet Wi-Fi local network. Properly configured, one pair of
converters allows to build a system working in the serial bridge mode
(Fig. 2). It is also possible to configure their operation in „one-to-several”
mode (as a set including up to 65 converters – Fig. 3). Function 2 of
the converter operates in the Ethernet Wi-Fi local network with UDP
datagram protocol support.

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Function 3 operation is very similar to the converter working with
RealPort network service except that it is not required to install software
virtual serial port driver on a PC with Windows. Communication between
a PC and PD8W converter is via TCP Socket mechanism. In this case,
in order to connect to the device, it is necessary to specify an IP address
of the converter and a port number (Fig. 1).

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Fig.1. Example application of the PD8W converter

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Fig.2. Example application of the PD8W converter, serial bridge mode with UDP protocol
(point – point).

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Fig.3. Example application of the PD8W converter, serial bridge mode with UDP protocol (point
– multipoint).

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3. BASIC REQUIREMENTS, OPERATIONAL SAFETY
Symbols located in this manual mean:
Especially important, please read before connecting the
converter. Non-compliance with the comments marked by
this symbol could result in damage to the converter.
Should pay attention, if the converter is not working as
expected.
Caution:
Removal of the converter housing during the warranty period voids
the warranty.
Comments concerning safety:
Assembly and installation of the electrical connections should
conducted only by people authorised to perform assembly
ofelectric devices.
Always check the state of connections before turning
the converter on.
Prior to taking the converter housing off, always turn the supply
off and disconnect measuring circuits.
The device is designed to installation and usage in the industrial
electromagnetic environment.
Aswitch or a circuit-breaker should be installed in the building
orfacility. It should be located near the device, easily accessible
bythe operator, and suitably marked.
2. CONVERTER SET
Complete set of the converter includes:
- PD8W converter 1pc,
- PD8W user’s manual 1pc,
- Warranty card 1pc,
- CD with software 1pc.
l
l
l
l
l

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Fig.4. Overall dimensions
4. INSTALLATION
4.1. Mounting
PD8W converter can be mounted on a 35 mm rail.
Dimensions and mounting are shown in Fig.4.

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4.2 PD8W electrical connections
The supply and external signals must be connected acc. to Fig. 5
and the Tab le 1 in which the assignment of the particular lead-outs have
been described.
Description of the leads-out
Table 1
PD8W
SUPPLY DEPENDING ON THE VER-
SION CODE (80...253 V A.C./D.C.
OR 20...50 V A.C./D.C.
Green LED indicates
the correct supply
- diode PWR
Red LED RxD signals
data reception through
RS-485
Yellow LED TxD signals
data transmission
through RS-485
mini USB
WLAN
Terminal
Terminal description
5 GND line
6Line B
(RS-485 interface)
7Line A
(RS-485 interface)
8 Line 5 V d.c.
9 Line + supply
10 Line - supply
11 not used
12 TxD output
(RS-232 interface)
13 RxD input
(RS-232 interface)
14 GND line
15 CTS line
(RS-232 interface)
16 RTS line
(RS-232 interface)
Fig.5. PD8W converter electrical
connections

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l do not supply the converter from the network in the proximity
ofdevices generating high pulse noises (inverters) and do not
apply common earthing circuits,
l apply network filters,
l all shields should be one-side earthed or connected to the
protection wire, the nearest possible to the converter,
l as a rule of thumb, wires transmitting different signals should
bespaced as far as it is possible (at least 30 cm) and should
becrossed only at the right angle of 90o.
Caution:
In order to obtain full immunity of the converter against electromagnetic
noise in an environment, it is recommended to observe the following
principles:
4.3 Transmission parameters of the serial interface
The PD8W converter works with industrial devices from
the RS-485 side at following baud rates: 300 bit/s, 600 bit/s, 1200 bit/s,
2400 bit/s, 4800 bit/s, 9600 bit/s, 19200 bit/s, 38400 bit/s, 56000 bit/s,
115200 bit/s.The maximum serial baud rates depend on the length
of transmission lines and are presented in the Tab le 2. A terminator should
be used at the length of the line over 800 m (a resistor 120 Ohm), which
connects the terminals „A” and „B” of the PD8W converter.
Length of the
transmission line
Maximum baud
rate Comments
100 m 115200 bit/s without terminator
200 m 56000 bit/s without terminator
800 m 38400 bit/s with a terminator for the
baud rate > 9600 bit/s
1200 m 9600 bit/s with a terminator
Dependence of the maximum baud rate from the line length Table 2

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4.4 Converter configuration
Caution:
Initial start of the device requires to configure the basic
parameters.
The default settings of a delivered device are shown in the Table 3.
Default settings Table 3
RS-485
Address 1
Mode RTU 8N1
Baud rate 9600 bit/s
RS-485
Mode RTU 8N1
Baud rate 9600 bit/s
USB
Address 1
Mode RTU 8N1
Baud rate 9600 bit/s
WLAN interface
SSID Lumel
Authentication open
Encryption open
DHCP on
Operation
mode
Access point mode

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The PD8W converter requires to configure the settings
appropriate for IP network protocol and Wi-Fi local area network at the
initial start. The settings that must be configured are: IP address of the
PD8W converter, subnet mask, address of the default gateway, the name
of the local network (SSID) and security settings of the local network. This
data should be obtained from the administrator of the computer network
which PD8W is connected to.
When the converter is connected to the local area network
with DHCP service available, IP settings of PD8W will be configured
automatically. Configuration of settings to allow the converter connecting
to a wireless local area network is possible via the USB interface.
4.4.1. Configuration via USB interface
The converter is configured by default to communicate
through a USB port.
Toconfigure the device via a USB interface it should be con-
nected to the PC with a mini-USB cable. After connecting the converter,
the operating system will inform that a new device is found with a message
shown in Fig. 6. Found New Hardware Wizard of the Universal Serial
Bus will be started automatically. Follow the suggestions of the wizard
by selecting the installation from a specific location and providing a path
to the drivers included on the supplied CD. Drivers are compatible with
the following systems: Windows 2000, XP, Server 2003, Vista, Windows 7,
Server 2008 (x86 and x64). When installing the drivers, you may receive
information about missing digital signature for drivers. Please ignore
it and continue with the installation.

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After closing the wizard, the system immediately will detect
another device – USB Serial Port (Fig. 7). Found New Hardware Wizard
will be restarted. Follow the suggestions of the wizard during installation.
Fig.7. System message about finding a new device
After a successful installation, the system will inform that new
hardware has been installed (Fig. 8). There will be two new devices
visible in Device Manager – Converter ETH-RS485 PD8W and COM port
named: Converter ETH-RS485 PD8W, as shown in Fig. 9.
Fig.8. The system message ending PD8W driver installation
Fig.6. The message to indicate that a new hardware has been found

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Fig.9. Device Manager window with the PD8W converter installed
Then run the PD8WConfig program delivered on CD
and follow the installation instructions provided in point 5.1. Installation
of the application and instructions for configuration via USB interface
provided in point 5.3 Device configuration via USB interface.
After entering the configuration, save it and restart the device
for the new configuration to take effect.
Caution:
After changing the parameters it is necessary to reset
a device.

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4.4.2. Device configuration via WLAN interface
Configuration of the PD8W converter via the WLAN interface
is possible after connecting it to the local wireless network. Default network
setting of the PD8W converter:
l name of the local network (SSID) - Lumel,
l only connection to the access point with the specified
name (SSID),
l Network Authentication) - insecure (Open System).
If the network to which the converter is to be connected has a different
settings than the above, use the USB interface (see section 4.4.1. Confi-
guration via USB interface) to adjust the converter to work in this network.
Then you can continue working.
PD8W converter is configured by default to obtain IP settings
through DHCP. If the local network to which the converter is connected
to provides the DHCP service, the converter will automatically obtain
appropriate IP settings of this network. Please note, that the IP address
allocated by the DHCP protocol can be changed dynamically.
Use the PD8WConfig program included on the CD to set the
IP address, as shown in section 5.2 Device configuration via WLAN
interface.
Ifthe IP address is known it is possible to configure the converter
via the website, as shown in section 6. Web browser.

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5. PD8WCONFIG APPLICATION
The PD8WConfig program included in the set is used to search
for devices on a network, configure the PD8W converter network settings
and configuration via a USB interface.
Itis required to enter the password for the administrator account
to make any changes to the configuration of the converter. The default
password for the administrator account is: dbps
More about user accounts in section 6.4.7 Users.
5.1. Installation of the application
The installation program is included on the CD that came
with the converter. Run the program PD8WConfig_install.exe to start
the installation. It is an application that installs PD8WConfig program on
your computer, and the necessary software additions. Follow the instru-
ctions on the screen during installation.
5.2. Device configuration via WLAN interface
The program scans a local area network and creates a list of
available converters of PD8W and PD8 series. This list is displayed in
the field List of Converters (Fig. 10).
Fig.10. The list of available converters

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The current IP address of the converter is shown in the field IP Address.
If you can see that the converter has a wrong IP address such as 0.0.0.0,
this means that the network has no DHCP service available. In such case,
you must configure PD8W with wrong address manually as follows:
1.After selecting the converter, click Configure IP settings.
2.In the window Set IP Address fill in the data obtained from
the network administrator (Fig. 11). As the password, enter
the password for the administrator account which by default
is set to: dbps
Fig.11. Configuration of network settings