Pulsar INTRE - v1.0 Operating instructions

Brand: Pulsar

Model: INTRE - v1.0

Category: Networking

Type: Operating instructions

Pulsar INTRE - v1.0 is an Ethernet interface that enables the connection of power supply units from the PSBEN series to a LAN/WAN network, allowing for remote monitoring and control. It supports various communication protocols, including TCP, UDP, and DHCP, and features data encryption for secure data transmission. The interface operates in both virtual serial port and TCP outlet modes.

Interface

RS485-ETHERNET

v.1.0

CODE: INTRE

Edition: 1st (6th Jan 2013)

www.pulsar.pl INTRE

CONTENTS

1. General description. ................................................................................................................................3

2. Arrangement of the components............................................................................................................3

3. Installation................................................................................................................................................4

3.1 Main guidelines....................................................................................................................................................................4

3.2 Connecting to the RS485 bus. ..............................................................................................................................................4

3.3 Connecting to Ethernet network...........................................................................................................................................4

3.4 Installation of the interface...................................................................................................................................................5

4. Configuration of the RS485-Ethernet interface....................................................................................6

4.1 Factory settings of the interface. ..........................................................................................................................................6

4.2 Introductory information. .....................................................................................................................................................6

4.3 STEP 1 – Restoring the factory settings...............................................................................................................................6

4.4 STEP 2 – Configuration of the IP address............................................................................................................................7

4.5 STEP 3 – Settings configuration of the RS485 - Ethernet interface – login........................................................................8

4.6 STEP 4 – Selecting the communication mode. ....................................................................................................................9

4.6.1 Communication in LAN/WAN........................................................................................................................................9

TCP Sockets profile settings.................................................................................................................................................................11

Setting the serial port............................................................................................................................................................................12

Settings in the PowerSecurity program.................................................................................................................................................13

4.6.2 Communication in the LAN serial bridge mode. ........................................................................................................15

Settings of the ‘Serial Bridge’ profile – Client/Server..........................................................................................................................16

Setting the parameters of the serial port. ..............................................................................................................................................16

Settings in the PowerSecurity program.................................................................................................................................................17

5. Setting the communication parameters of the PSU............................................................................20

5.1 Configuration of the PSU with an LCD display.................................................................................................................20

Setting the address of the PSU. ............................................................................................................................................20

Setting the parameters of the serial port. .............................................................................................................................21

5.2 Configuration of the PSU with an LED display.................................................................................................................22

Setting the address of the PSU. ............................................................................................................................................22

Setting the parameters of the serial port. .............................................................................................................................22

6. Specifications..........................................................................................................................................23

www.pulsar.pl INTRE

Features:

• operating in the ETHERNET network

• compliant with the IEEE 802.3 standard

• physical layer 10/100BaseT

• transmission speed 10/100Mbps (auto-sensing)

• operation mode: full or half-duplex (auto-sensing)

• embedded web server for configuration

• data encryption: DES, 3DES, AES

• operates with numerous popular protocols, e.g. TCP, UDP, DHCP

• assigning a static or dynamic IP address (DHCP server)

• operates in modes: virtual serial port, TCP outlet

• galvanic isolation between the ETHERNET interface and the RS485

• power supply 10 ÷ 30V DC

• works with the PowerSecurity software

• LED indication

• hermetic enclosure IP65

• warranty - 5 years form the date of production

1. General description.

The RS485-ETHERNET interface is a device intended for converting signals between the RS485 bus and

the Ethernet network and dedicated for working with power supply units of the PSBEN (Black Power) group

connected to LAN/WAN network. To work correctly, the device requires external power supply within the range of

10 ÷ 30V DC e.g. drawn from a PSU of the PSBEN series. The physical connection is safe due to embeded

galvanic isolation. The device is mounted in a hermetic enclosure that protects it against adverse environmental

conditions.

2. Arrangement of the components.

The picture below shows the arrangement of the most important components and connectors of the

RS485-ETHERNET interface.

Fig.1. The view of the interface.

www.pulsar.pl INTRE

Table 1. Description of the components.

Element no. Description

[1]

LEDs – optical indication:

PWR – supply’s voltage

TX – data transmission

RX – receiving data

[2] RST button – reset of the interface’s settings

[3] INIT button – initiation of the interface

[4] Outlet of the ETHERNET RJ45 interface (see: table 2)

[5]

Connector of the RS485 bus

A+, B- - RS485 data transmission

SG - signal ground

[6]

ETHERNET outlet.

Green LED – network activity (transmitting or receiving)

[7]

ETHERNET outlet.

Yellow LED – active connection with the network

[8] Power connector 10÷30V DC

3. Installation.

3.1 Main guidelines.

During the installation of the RS485-ETHERNET interface, follow certain principles that will help to avoid

electromagnetic interferences and incorrect operation of the device:

- provide the interface with power from a source of low ripple voltage

- the main supply cable ought to be as short as possible

- signal harnesses shall be led in min. 50 cm distance, the cuts between them are to be made at the angle of 90°

- the location of the interface's installation must be distant from devices of significant impulse interferences, e.g.

power invertors, contactors, relays.

3.2 Connecting to the RS485 bus.

The RS485-ETHERNET interface is connected to the RS485 bus via the ‘RS485’ connector. Connect the

wires of the RS485 bus to the A+, B- terminals of the connector. They are assigned in the same way and the

connection is identical to the rest of devices (A+ to A+, B- to B-).

Use a twisted-pair cable as a transmission wire of the bus. The bus shall be of a ‘point-to-point’ topology,

the ‘star’ type of topology is to be avoided. If the bus wires are of a significant length it is recommended to use a

shielded cable that will prevent from errors during communication and lowers the susceptibility to noise and

emission of radio frequency interference. It is also advisable to mount termination resistors at the ends of the bus.

Their resistance ought to be comparable to the impedance specific for the cable in use, i.e. 120 Ohm.

3.3 Connecting to Ethernet network.

The connection of the RS485-ETHERNET interface to the Ethernet network is to be made with a twisted-

pair cable U/UTP, of min 5 category, ending with RJ45 plugs connected by colour accordingly to the EIA/TIA 568B

standard. If the dedicated location shows a high level of electromagnetic interference, use a shielded cable F/UTP

or S/UTP to minimise the effect of its diffusion.

The connection of the interface to the Ethernet network is through a cable with RJ45 plugs, uncrossed.

Table 2. Description of pins in the RJ45 outlet.

Pin 1 TXD+ Transmitting + white-orange

Pin 2 TXD- Transmitting - orange

Pin 3 RXD+ Receiving + white-green

Pin 4 EPWR+ --- blue

Pin 5 EPWR+ --- white-blue

Pin 6 RXD- Receiving - green

Pin 7 EPWR- --- white-brown

Pin 8 EPWR- --- brown

www.pulsar.pl INTRE

3.4 Installation of the interface.

1. Lead the cable of the RS485 bus through the cable duct and the appropriate hole in the enclosure and then

connect to the RS485 connector of the interface. The wires A+, B- must be connected identically in all devices,

i.e. A+ to A+, B- to B-. In the shielded cables, the shield is to be connected to the terminal of signal ground SG.

2. Optional: mount 120 Ohm terminating resistors at the end of the RS485 bus.

3. Lead the Ethernet cable through the cable duct and the appropriate hole in the enclosure and then clamp the

RJ45 plug. Next, plug the cable in the RJ45 outlet of the interface. The other end of the twisted pair is to be

plugged in the RJ45 outlet of the router, most frequently assigned as ‘LAN’.

4. Lead the supply cable through the cable duct and the appropriate hole in the enclosure and then connect it to

the ‘Power’ power connector. The power source shall deliver voltage from the range of 10-30V DC, e.g. from a

power supply unit of the PSBEN group. The best solution is to use a PSU that is plugged into the RS485 bus

and located close to the interface.

Fig.2. The view of the interface with a description of the wires.

www.pulsar.pl INTRE

4. Configuration of the RS485-Ethernet interface.

4.1 Factory settings of the interface.

Username - root

Password - dbps

IP address

Acquired automatically from the DHCP database of the router

Network’s name (SSID)

No name

Network security

No preset protection

Communication parameters of a serial port

No configuration

4.2 Introductory information.

Parameters of the Ethernet interface can be configurable in order to adjust them to the intended operation

mode. The configuration is via web browser after correct logging, i.e. typing correctly username and password.

The ‘Digi Device Discovery’ program is also helpful as it allows previewing important parameters of the

interface at the preliminary stage of the configuration. The application seeks out modules available at the range of

a router / switch and informs about the assigned IP address and MAC unique address.

Download the ‘Digi Device Discovery’ program from the following page:

http://www.pulsar.pl/pl/pliki/digi_discovery.exe

To perform the configuration of the RS485-Ethernet interface, a minimal connection arrangement is to be

set, as shown below:

Fig. 3. A diagram of connections between the interface and a PC

that enables performing the configuration.

A newly purchased RS485-ETHERNET is delivered with basic configuration (factory settings) which is not

adjusted to correct operation in the system.

As the communication with the interface is via network cable, it is important to adjust your network device

accordingly to enable establishing connection with the interface. Provided that, the device in use is a switch – no

configuration is required. If a router is the device in use, though, ask the administrator about the current

configuration of the router or restore the factory settings accordingly to the information included in the further part of

this manual.

4.3 STEP 1 – Restoring the factory settings.

Router:

To restore the factory settings of the router, check the device’s manual and perform actions following the

manufacturer’s instructions. In most cases, the actions narrow down to finding the reset button at the back panel of

the enclosure and holding it for approx. 5s. After releasing the button, wait approx. 1 min for the correct initiation of

the router. The initiation restores the factory settings to:

Address: 192.168.1.1

Username: admin

Password: admin

www.pulsar.pl INTRE

RS485-EHERNET interface:

To restore the factory settings of the interface, press and hold the INIT button and then press and release

the RESET button one time. Still holding the INIT button, wait approx. 20s during which the interface will be

twinkling: 3 times with the yellow LED [6 – fig. 1] and then 5 more times. Correctly performed initiation restores the

interface’s settings, among others, to:

Address: assigned automatically by the router

Username: root

Password: dbps

After restoring the factory settings of the router and the interface, the yellow LED of the interface is

illuminated and the green one twinkles indicating active connection. If not, it may be necessary to disconnect the

module from the power supply and then switch it back on. If these actions prove insufficient, begin the procedure of

restoring the router’s and the interface’s factory settings once again.

4.4 STEP 2 - Configuration of the IP address.

To ensure a proper progress of the IP address changing procedure, it is recommended to turn off the

firewall of the anti-virus program for the time of configuration process.

Run the ‘Digi Device Discovery’ program, icon. After launching, the program will display the

RS485-ETHERNETinterface logged to the router. Identification of our module can be done by comparing the MAC

addresses.

Fig. 4. The window of the ‘Digi Device Discovery’ program

showing a logged-in interface.

The MAC address of the interface is underneath the barcode of the DIGI module.

Fig. 5. The MAC address located on the DIGI module.

www.pulsar.pl INTRE

In order to facilitate the further use of the devices online, change the IP address assignment from automatic

into manual. To make such adjustments, click the right button of the mouse on the line with selected interface and

choose: ‘Configure network settings’.

Fig. 6. The window of network settings.

Select the option: ‘Manually configure network settings’ in the window of network settings. From now on,

the automatically assigned IP address will maintain the same on each connection. The automatically assigned IP

connection may be left unchanged or be altered. If altered, be sure that the new address is not already taken and

will not cause conflicts.

Before setting the network address, make certain that none of the devices working in the network is

using it and no address conflict is caused due to that fact.

Click the ‘Save’ button to approve the changes. The ‘Digi Device Discovery’ application will display a

message about a required interface restart which shall be approveded by clicking the ‘OK’ button. Next, the window

of device’s resetting progress will appear.

4.5 STEP 3 – Settings configuration of the RS485 - Ethernet interface – login

To make adjustments in configuration settings of the RS485-Ethernet interface, double-click the line of the

chosen interface in the ‘Digi Device Discovery’ program. Log in correctly after the window of the default web

browser opens.

Fig. 7. The login window of the RS485-Ethernet interface.

Password: dbps

Approve your entries with the ‘Login’ button. In no time, the window that enables adjustments will be loaded.

The interface of the web browser requires re-login after 5 minutes of idleness.

www.pulsar.pl INTRE

4.6 STEP 4 – Selecting the communication mode.

Communication with the RS485-Ethernet interface is possible in various modes. The selection is made by

choosing the appropriate profile in the web browser of the interface and configuring appropriate parameters. The

profile selection must be made on the basis of LAN connection between interfaces and power supply units taking

part in the communication.

4.6.1 Communication in LAN/WAN network.

- Communication in LAN network:

Shown below is a block diagram of communication in LAN.

Fig.8. A block diagram of LAN communication system.

The topology of the network is based on an Ethernet switch (e.g. switch, router) connected to another PSU

segments (connected in the RS485 bus) via the RS485-Ethernet interface. Each interface has a static IP address.

Communication between a PC and the final PSU is by giving the IP address of the interface, the address of the

PSU in the RS485 network and the number of the port responsible for the communication.

If the foregoing topology has been chosen, proceed to chapter 'TCP Sockets profile settings' to make the

configuration of the interfaces.

www.pulsar.pl INTRE

- Communication in WAN network:

Fig.9. A block diagram of WAN communication system.

Communication between a PC and the final PSU is by the Internet with the public IP address of the router

connected to the interface. Data from the router are redirected to the RS485-Ethernet interface, connected to the

RS485 bus, and then forwarded to the PSU on the basis of the bus address. In this manner, one can establish

communication with power supply units located in different power systems.

If we select communication via WAN, an additional configuration of the router is required. Set the ‘Port

forwarding’ function by following the device’s manual and acting accordingly to the producer’s guidelines.

To configure the function of redirecting the connection, give the IP address of the RS485-Ethernet interface and the

number of the port responsible for the communication.

After correct configuration of the router, configure the interfaces by proceeding to 'TCP Sockets profile settings'

chapter.

www.pulsar.pl INTRE

TCP Sockets profile settings.

After logging in the interface configuration page, select the ‘Serial Ports’ option from the ‘Configuration’

group. Then, select ‘TCP Sockets’ from the ‘Select Port Profile’ window and approve your choice by clicking

‘Apply’.

Caution! If the interface was configured before, the ‘Serial Port Configuration’ window with current profile will

appear instead of ‘Select Port Profile…’. In such case, click ‘

Port 1’ and then ‘Change profile…’ at the top of the

next window. Only now, will the ‘Select Port Profile…’ window appear and the ‘TCP Sockets’ profile can be chosen.

Fig. 10. Settings of the ‘TCP Sockets’ profile.

Approve the settings by clicking “Apply’.

If the port 2101 is already taken, choose another one, e.g. 2102. The selected port number is to be used

consistently from now on.

www.pulsar.pl INTRE

Setting the parameters of the serial port.

Select the ‘Basic Serial Settings’ tab at the bottom of the page and adjust the settings as shown in the

window below:

Fig. 11. Setting the parameters of the serial port communication.

Approve the settings by clicking ‘Apply’. Next, select the ‘Advanced Serial Settings’ tab at the bottom and make

adjustments in the ‘TCP Setting’ section accordingly to the picture below. Approve the changes with the ‘Apply’

button.

Fig. 12. Configuration of communication parameters of the serial port. – the ‘TCP Settings’ tab.

Reset the RS485-ETHERNET interface by pressing the ‘RST’ button on the module or by cutting off the

power for a few seconds. After the reset, the connection between the interface and the router should be re-

established after approx. 30s.

www.pulsar.pl INTRE

Settings in the PowerSecurity program.

For further configuration, the PowerSecurity program is required. Download it from the following page:

http://www.pulsar.pl/pl/pliki/PowerSecurity.exe

The program is saved as an executable file therefore does not require installation in the system. From the

menu bar choose: Power supplies > New Power Supply There will appear the window of Connection Settings in

which all settings are to be adjusted.

Three parameters are particularly important:

- the TCP address that indicates the interface located in a given segment of the network topology

Caution! If the connection is via WAN, use the public IP address of the router.

- the address in the ‘Power Supply’ window indicating directly the PSU in the RS485 bus, connected to the

segment addressed by the TCP

- the TCP port, the number of port responsible for data transmission

Take notice to the preview refreshing period. It is to be prolonged according to the number of power supply

units in the system not to cause communication interference. Prolong the reply period for the same reason.

Fig. 13. The window of connection configuration – an example of settings.

PSU Description

Name

The name that is to be assigned individually to each PSU.

Address

The address of the PSU in the RS485 bus.

Caution! Addresses within same bus cannot be repeated.

Refreshing Period

of View [ms]

100 ÷ 60 000ms;

Parameters refreshing time in the preview window.

CONNECTION

Type

Modbus RTU – TCP/IP

TCP Address

The address of the RS485-Ethernet interface in LAN.

Caution. If the connection is via WAN, use the public IP address of the router.

TCP Port

2101

The number of the TCP port.

Response Timeout

[ms]

100 ÷ 60 000ms;

Time of reply from the PSU.

Delay between

Pools [ms]

Minimum break between subsequent transmissions.

Number of

Retransmissions

Number of retransmissions after which the program will report a connection failure.

www.pulsar.pl INTRE

After loading the connection configuration the window with a ‘Preview’ tab will open. In the top left-hand

corner there is an

icon which is to be clicked to make a connection with the PSU. As the connection has been

made, the window will display current parameters of the PSU. They will be automatically updated according to the

previously set refreshing cycle.

Fig. 14. The PSU preview window.

To set the connection between the RS485-ETHERNET interface and any PSU connected to the

RS485, check whether the communication parameters of the power supply unit’s serial port are

correct. The transmission parameters of the power supplies are preset to 19200 bauds 8E1. If the

values were altered before, make the settings again accordingly to the information from the chapter:

‘Setting the communication parameters of the PSU’.

www.pulsar.pl INTRE

4.6.2 Communication in the LAN serial bridge mode.

Shown below is a block diagram of communication in the ‘Serial Brigde’ serial bridge mode in LAN.

Rys.15. A block diagram of communication system in the serial bridge mode.

The topology of the network is based on an Ethernet switch (e.g. switch, router) which serves as a bridge

between two segments of the RS485 bus. Each bus is connected to the RS485-Ethernet interface, where one is

the Client, and other the Server. Each interface has a static IP address. Communication between a PC and the

final PSU is by entering the PSU address in the RS485 bus.

Settings of the ‘Serial Bridge’ profile – Client/Server.

To configure the interface, connect the switch/router to the computer, as shown in fig. 3.

After logging in the interface configuration page, select the ‘Serial Ports’ option from the ‘Configuration’

group. Then, select ‘Serial Bridge’ profile from the ‘Select Port Profile…’ window and approve your choice by

clicking ‘Apply’. Configuration of the ‘Client’ interface differs from the ‘Server’ one therefore it is to be performed

separately.

Caution! If the interface was configured before, the ‘Serial Port Configuration’ window with current profile will

appear instead of ‘Select Port Profile…’. In such case, click ‘Port 1’ in the displayed window and then ‘Change

profile…’ at the top of the next window. Only now, will the ‘Select Port Profile…’ window appear and the ‘Serial

Bridge’ profile can be chosen.

Configuration of the ‘Client’ interface. Configuration of the ‘Server’ interface.

Fig. 16. ‘Serial Bridge’ profile settings for the interfaces ‘Client’ and ‘Server’.

In the ‘IP Address’ Fidel of the ‘Client’ interface configuration, type the real IP address of the ‘Server’ interface

Approve your settings with the ‘Apply’ button.

www.pulsar.pl INTRE

If the port 2101 is already taken, choose another one, e.g. 2102. The selected port number is to be used

consistently from now on.

Setting the parameters of the serial port.

The settings describes in this subsection are to be applied to both RS485-Ethernet interfaces. Select the

‘Basic Serial Settings’ tab at the bottom of the window and adjust the settings as shown in the window below:

Fig. 17. Setting the parameters of the serial port communication.

Approve the settings with the ‘Apply’ button.

Next, select the ‘Advanced Serial Settings’ tab at the bottom of the window and adjust the settings in the ‘TCP

Settings’ section accordingly to the picture below. Approve the changes with the ‘Apply’ button.

Fig. 18. Configuration of communication parameters of the serial port

– ‘TCP Settings’ tab.

Reset the RS485-ETHERNET interface by pressing the

‘RST’ button on the module or by cutting off the

power for a few seconds. After the reset, the connection between the interface and the router should be re-

established within approx. 30s.

www.pulsar.pl INTRE

Settings in the PowerSecurity program.

For further configuration, the PowerSecurity program is required. Download it from the following page:

http://www.pulsar.pl/pl/pliki/PowerSecurity.exe

The program is saved as an executable file therefore does not require installation in the system. Run the

PowerSecurity program and choose: Power supplies > New Power Supply from the menu bar. There will appear

the window of Connection Setting in which all settings are to be adjusted.

Take notice to the preview refreshing period. It is to be prolonged according to the number of power supply

units in the system not to cause communication interference.

Fig. 19. The window of connection configuration – an example of settings.

PSU Description

Name

The name that is to be assigned individually to each PSU.

Address

The address of the PSU in the RS485 bus.

Caution! Addresses within same bus cannot be repeated.

Refreshing Period

of View [ms]

100 ÷ 60 000ms;

Parameters refreshing time in the preview window.

CONNECTION

Type

Modbus RTU

Port

Enter the number of the COM port – same as the one assigned in the Device

Manager.

Baud Rate

19 200 bauds

Parity

Even

Response Timeout

[ms]

100 ÷ 60 000ms;

Time of reply from the PSU.

Delay Between

Pools [ms]

Minimum break between subsequent transmissions.

Number of

retransmission

Number of retransmissions after which the program will report a connection failure.

After loading the connection configuration the window with a ‘Preview’ tab will open. In the top left-hand

corner there is an icon which is to be clicked to make a connection with the PSU. As the connection has been

www.pulsar.pl INTRE

made, the window will display current parameters of the PSU. They will be automatically updated according to the

previously set refreshing cycle.

Fig. 20. The PSU preview window.

To set the connection between the RS485-ETHERNET interface and any PSU connected to

the RS485, check whether the communication parameters of the power supply unit’s serial port are

correct. The transmission parameters of the power supplies are preset to 19200 bauds 8E1. If the

values were altered before, make the settings again accordingly to the information from the chapter:

‘Setting the communication parameters of the PSU’.

www.pulsar.pl INTRE

5. Setting the communication parameters of the PSU.

Communication in the RS485 bus requires setting appropriate communication parameters in all power

supply units and assigning appropriate addresses. Configuration in PSBEN power supply units is via the

display mount in the faceplate of the enclosure. The configuration procedure is different for an LED and

LCD display.

The address for all power supply units is preset to 1.

5.1 Configuration of the PSU with an LCD display.

Setting the address of the PSU.

- enter the PSU ‘Settings’ menu

(if the main screen is displayed, press the ‘SET’ button)

- with ‘>’ or ‘<’ choose the

Power Supply menu

- approve your choice with the ‘SET’ button

- with ‘>’ or ‘<’ choose the Comm. Address

- press the ‘SET’ button

- the prompt will appear at the end of the line

- with ‘>’ or ‘<’ set the address from 1 to 247

- approve your choice with the ‘SET’ button

www.pulsar.pl INTRE

Setting the parameters of the serial port.

To enter the settings mode, press the ‘SET’ button from the main screen level.

- with ‘>’ or ‘<’ set the

Power Supply menu

- press the ‘SET’ button

- with ‘>’ or ‘<’ set the Transmission menu

(the Transmission menu is at the very bottom of the screen)

- press the ‘SET’ button, the prompt will appear at the end of the line

- with ‘>’ or ‘<’ set 19.2k 8E1

- approve your choice with the ‘SET’ button

Page is loading ...

Pulsar INTRE - v1.0 Operating instructions

Brand: Pulsar

Model: INTRE - v1.0

Category: Networking

Type: Operating instructions

Download PDF

report

Pulsar INTRE - v1.0 Operating instructions

Pulsar INTRE - v1.0 Operating instructions

Related papers

Other documents