Gude EMC Professional NET 19 inch, EMC Professional NET User Manual

EMC Professional NET(19“)

Manual

Time Server with integrated DCF77 Time Receiver for

Industrial Applications

3EMC Professional NET

Manual EMC Professional NET(19“)

© 2019 GUDE Systems GmbH

Rev. 2.3

3EMC Professional NET

Content

Security declaration 5

1 Description 6

2 Hardware 7

2.1 Content of delivery 7

2.2 Installation 8

2.3 Display 8

2.4 Alignment of the active antenna 10

3 Network operation 12

3.1 EMC Prof NET (19“) as SNTP-Server 12

3.2 Time synchronization as SNTP-Server 12

3.2.1 Windows XP/Vista 12

3.2.2 Windows 9x/NT/2000 13

3.2.3 Linux 14

4 Operation via serial interface 16

4.1 Operation under Windows 16

4.1.1 Installation of the Software 16

4.1.2 Settings 16

4.1.3 Interface 18

4.1.4 Logmode 19

4.2 Operation under Linux (NTP) 20

4.2.1 NTP installation 20

4.2.2 NTP configuration 20

4.2.3 Starting NTP 21

4.2.4 Setup of a NTP daemon 22

4.3. V.24 protocols 23

4.3.1 Gude standard time protocol 23

4.3.2 Gude UTC time protocol 23

4.3.3 XNTP time protocol 23

EMC Professional NET

4

5EMC Professional NET

5 Configuration 24

5.1 Automatic configuration by DHCP 24

5.2 Network configuration by GBL_Conf.exe 24

5.3 Configuration by Webinterface 25

5.4 IP Access Control List 30

5.5 SNMP 31

5.6 Syslog 32

5.7 Presentation of the recent configuration 32

6 Features 33

6.1 Bootloader mode 33

6.2 Firmware update 33

6.3 Technical information 34

7 Support 35

Declarations 36

Contact 37

5EMC Professional NET

Security declaration

The device must be installed only by qualified personnel accord­ing to the following installation and operating instructions.

The manufacturer does not accept responsibility in case of im­proper use of the device and particularly any use of equipment
that may cause personal injury or material damage.

The device contains no user-maintenable parts. All maintenance
has to be performed by factorytrained service personnel.

Check if the power cord, the plug and the socket are in proper
condition.

The device can be connected only to 230V AC (50 or 60 Hz)
sockets.

Always connect the device to properly grounded power sock­ets.

The device is intended for indoor use only. Do NOT install them
in an area where excessive moisture or heat is present.

Because of safety and approval issues it is not allowed to modify
the device without our permission.

Please note the safety advises and manuals of connected de­vices, too.

The device is NOT a toy. It has to be used or stored out or range
of children.

Packaging material is NOT a toy. Plastics has to be stored out of
range of children. Please recycle the packaging materials.

In case of further questions, about installation, operation or usa­ge of the device, which are not clear after reading the manual,
please do not hesitate to ask our support team.

EMC Professional NET

6

7EMC Professional NET

1 Description

EMC Professional NET (EMC Prof NET (19“)) provides ac-

cess to one of the most exact working atomic clocks in the
world. It is run by the Physikalisch-Technische Bundesanstalt
(PTB) in Braunschweig/Germany. Time and date are broad­casted by the DCF77 long-wave sender in Frankfurt/Mainflingen
in Germany on a frequency of 77,5 kHz. The broadcasted time
and date information are CET/CEST. The range of DCF77 is
about 2000km.

EMC Prof NET (19“) receives the DCF77 signal, using an ac­tive antenna. The received time and date information can be
published in a network using NTP or via serial interface to a
single PC.

EMC Prof NET (19“) acts as stand-alone SNTP-Server. All PCs
in the network can synchronise with EMC Prof NET (19“).

EMC Prof NET (19“) was designed for a safe implementation
in a environment, which is polluted by electro-magnetic inter­ferences. To secure a proper receive, EMC Prof NET (19“) is
equipped with a precise electronic.

In case of longer receiving problems, EMC Prof NET (19“)
automatically switches to its internal battery buffered real time
clock and provides further on the exact time and date. When
the quality of the received signal has gone good enough again,
EMC Prof NET (19“) switches back to radio time.

Features of EMC Prof NET (19“):

 Digital filter and intelligent failure correction
 Signal monitor with LED line
 Battery buffered real time clock
 Stand-alone Time server (SNTP)
 Νetwork configuration via DHCP
 Configuration over Ethernet (HTTP)
 Programmable Relais switch (without potential)
 Syslog
 SNMP (v1, v2c)

7EMC Professional NET

Figure 1 Front EMC Prof NET

Figure 2 Rear EMC Prof NET

3 4 5 6 7 8 9 10 111 2

1 Display
2 Radio Time LED
3 RS232 LED
4 Clock rate LED
5 Signalmonitor
6 Ethernet connector (RJ45)

Figure 3 Front EMC Prof NET 19“

Figure 4 Rear EMC Prof NET 19“

12, 3, 4 5 6 78 91011 12

7 Relay contact (without potential)
8 Serial interface (RS232)
9 Bootloader button
10 Power inlet
11 Connector for Active antenna (BNC)
12 Power switch (only EMC Prof NET 19“)

2 Hardware

2.1 Content of delivery

The delivery includes:

 EMC Prof NET (19“)
 Power adaptor (EMC Prof NET) /

Power cable IEC (EMC Prof NET 19“)

 Serial Interface Cable (Sub-D)
 Network cable
 CD-ROM incl. software and manual
 Active antenna (only in EMC Prof NET (19“)-Set)

EMC Professional NET

8

9EMC Professional NET

2.2 Installation

1. Connect the active antenna and the power adaptor/power
cable with the connectors at the device. If you are using EMC
Prof NET 19“, activate the device. EMC Prof NET (19“) is now
booting and shortly after ready for usage.

2. Connect EMC Prof NET (19“) with your network or via serial
interface with your pc.

2.3 Display

After power on the LC display shows the configuration and the
version of the firmware.

After a few seconds EMC Prof NET (19“) shows its IP address
followed by the up-to-date time and date.

First EMC Prof NET (19“) is in quarz mode. Beside the time
“Quarz” is shown in the display. Even in quarz mode EMC Prof
NET (19”) is completely ready for use.

EMC ProNET V1.6

Config: Gude

EMC ProNET V1.6

D192.168.0.2

15:39:53 Quarz

We 04.Jun 2008

9EMC Professional NET

It looks for a proper radio signal. Approximatly after two minutes
EMC Prof NET (19“) has received enough information to switch
into the radio mode. Then it shows “F=...” in the display, which
means the number of faulty received bytes within in the last ten
minutes.

When you receive a good signal quality, the LED line will swing
fully once a second and the clock LED will blink every second.
The radio time LED will shine green constantly.

15:39:53 ok F=00

We 04.Jun 2008

EMC Professional NET

10

11EMC Professional NET

2.4 Alignment of the active antenna

Local issues may have influ­ences on the received quality
of the signal. Barriers like re­inforced concrete buildings or
mountains may weaken the sig­nal, the electromagnetic fields of
screens or motors may disturb
the signal, too.

EMC Prof NET (19“) was de­veloped in aspect to be used in
an electro-magnetic disturbed
environment. With its active an­tenna and optimized electronic,
EMC Prof NET (19“) offers a
good receiving even in such
ambience.

To obtain a good receiving, please attend to the following hints:

 Do not place the antenna near by or directly on metallic,

or conductive objects.

 Place the antenna near by a window. If neccessary it

is possible to mount the antenna outsides, in this case
make sure, that there is an adequate lightning proctec­tion.

 Do not place the antenna parallel to telephon/network or

power cables.

 Change the direction and the position of the antenna

until you get a good receive quality (See figure 5).

Since the time signal moves cir­cular from the sender in frankfurt/
Mainflingen, you will get the best
receive if you place the antenna
tangential to these circles.

Figure 5 Alignment of the active
antenna

11EMC Professional NET

 Interferences may be exactly at 77,5 kHz or broadband

interferences, which meet 77,5 kHz. Devices like moni­tors or devices using a power adaptor are known jam­ming sources. Do not place the antenna near by those
objects.

 Athmospheric interferences occur like shortwave radio

in batches, up to a few seconds. To secure the received
quality, we recommend to change the location of the
antenna.

When you receive a good signal quality, the LED line will swing
fully once a second and the clock LED will blink every second.
The radio time LED will shine green constantly.

EMC Professional NET

12

13EMC Professional NET

3.1 EMC Prof NET (19“) as SNTP-Server

Due to its integrated ethernet interface EMC Prof NET (19“) can
be connected to a network and is able to act as a stand alone
time server. The SNTP protocol allows client in the network to
synchronize the time with EMC Prof NET (19“).

3 Network operation

3.2 Time synchronization as SNTP-Server

The following chapters show how to synchronize your PC clock
with EMC Prof NET (19“) while using a MS Windows OS.

3.2.1 Windows XP/Vista

If you are using Windows XP or Vista, you do not need additional
software to synchronize your PC with EMC Prof NET (19“)
First, open the date and time information by double clicking on
the clock in the task bar. Now choose the tab Internet time and
enter the IP address of EMC Prof NET (19“) into the field Server
(see figure 6).
By clicking at Update
you can check the syn­chronization.
Close the configuration
by clicking at OK. Win­dows will automatically
synchronize the time
from now on.

Figure 6 Internet time at Windows XP

13EMC Professional NET

3.2.2 Windows 9x/NT/2000

While using Windows 9x/NT/2000 the easiest way to synchro­nize the internal PC clock with the EMC Prof NET (19“) is the
tool Dimension 4 (D4).

To synchronize the PC with EMC Prof NET (19“), click on the
button Add. Then enter the IP address of EMC Prof NET (19“)
at Server and a description at Location. Now choose the proto­col „SNTP“. Confirm the settings by clicking at OK (see figure

7).
With standard settings, D4 will update your PC clock once an
hour.

Figure 7 Interface D4

EMC Professional NET

14

15EMC Professional NET

3.2.3 Linux

Under Linux, there are several ways to synchronize the PC
clock with a network time server. This chapter shows how you
can synchronize your PC clock with ntpdate and cron.

Please check, if ntpdate is installed already. Therefor, please
use the command „which ntpdate“. If ntpdate is installed, which
will display the location on your PC (Figure 8)

If which does not display a location, please install ntpdate (in­cluded in NTP). You can find the script make_all.sh for instal­lation at the CD-ROM at „EMC_Professional_NET\tools\linux\
get_ntp“. More information about the installation you can find in
chapter 4.2.

With „ntpdate IP address of EMC Prof NET (19“)“ you can syn­chronize your PC clock. If you only want to request the time of
EMC Prof NET (19“), you have to use the paramter „-q“ after
the command.

linux:/ # which ntpdate
/usr/sbin/ntpdate
linux:/ #

Figure 8 ntpdate was found

linux:/ # ntpdate 192.168.0.2
9 Mar 10:26:44 ntpdate[4012]: step time server

192.168.0.2 offset -0.02398 sec
linux:/ # ntpdate -q 192.168.0.2
9 Mar 10:26:50 ntpdate[4013]: adjust timer server

192.168.0.2 offset -0.00145 sec
linux:/ #

Figure 9 ntpdate

15EMC Professional NET

For a regularly synchronization, you have to create a cronjob. A

cronjob is command, done by cron. We recommend to start ntp-
date with the parameter „-s“. With „-s“ the command line output

of ntpdate will be written into the systemlog. To create a cronjob,
you have to start crontab -e. In figure 10 you can see a cronjob,
that is repeated each full hour.

Figure 10 crontab

#min hour day month dayofweek command

#--------------------------------------------------­ 0 * * * * ntpdate -s 192.168.0.2

EMC Professional NET

16

17EMC Professional NET

4 Operation via serial interface

EMC Prof NET (19“) offers a serial interface, additionally to

the network ethernet interface. On the CD-ROM, you can find
the tool w32EMC for Windows OS. For Linux you need the free
toolset NTP.

4.1 Operation under Windows

4.1.1 Installation of the Software

Put the CD-ROM „Drivers & Tools“ into your CD-ROM drive.

Open „setup_w32EMC.exe“ and follow the advices of the instal­lation program. The neccessary files will be copied to your hard
disk.
Start w32EMC.exe. You only have to enter the used COM port.
If everything is alright, your system will be synchronized regu­larly.

4.1.2 Settings

The menue settings allows to change the configuration of
w32EMC:

 COM-Port

Here you can enter the COM-Port where EMC Prof

NET (19“) is connected to.

 Colors
Here you can change the color

settings of w32EMC.

 Max. offset

Here you can activate the max­imum allowed offset. If it is ac­tive, the software calculates the
difference between last DCF
time and PC clock. In case it
is more than 90 minutest, the
software will not synchronize

Figure 11 w32EMC

17EMC Professional NET

the PC. This feature is recommended in locations of
bad receive, since the DCF signal may have errors and
will look totally correct, although it is wrong.

 Language

Here you can change the language of w32EMC. Pos­sible languages are English and German

 Sync frequency

Here you can choose in which intervall w32EMC shell

synchronize your PC clock. Usually one hour is enough,
shorter intervalls may cause a too high CPU load.

 Time shift

Here you can enter a time shift. We recommend to de-

activate this feature, since Windows has its own time
shift management.

 Save

Here you can save the changed settings. They will be-

come active on next start of w32EMC.

EMC Professional NET

18

19EMC Professional NET

4.1.3 Interface

At the w32EMC window (figure 11) you can see the following
values:

DCF77-State

System time

The time and date of your PC.

Last received

The last correct received DCF time and date.

Operation mode

It is indicated here if EMC Prof NET (19“) is in radio or in quarz
mode:

„Radio mode“ means, EMC Prof NET (19“) receives a proper
DCF77 signal and synchronizes with.

„Quarz mode“ means, EMC Prof NET (19“) works with its
integrated real time clock, since there is no proper receive of
DCF-77 time signals. If this happens often, please check the
alignment of the active antenna (see 2.4).

Incorrect bits

Here, the counter of the incorrect received bits is displayed.
EMC Prof NET (19“) switches automatically to Quarz mode,
if the number rises to high. When the received signal has gone
better and the number of faulty bits decreased, EMC Prof NET
(19“) switches back to Radio mode. The number of faulty bits is
displayed in the LCD display also: „F=...“.

Announcements

Announcements, broadcasted via DCF will be displayed here.

19EMC Professional NET

V.24

V.24 State

The state of the data transfer of the serial interface is shown
here:

„active“/„active in ... seconds“: DCF time signals are re­ceived at serial interface of the PC. The system time is
compared with DCF time.

„No receive!“: There is no receive of signals at the choos­en serial interface. Please check if you choose the correct
COM-port and if the cable is connected correctly to your
PC.

„No COM-port selected“: There is no COM-port selected
to receive the signals of EMC Prof NET (19“).

Interface

The selected COM-port is displayed here.

Log

The recently received time telegram is displayed here as an
ASCII string.

4.1.4 Logmode

The software w32EMC allows you to protocol all actions and
additional error messages in a log file. This is important for ad­ministration or bugfixing.

You can start the logmode at the start of the software. Sie kön­nen den Logbetrieb beim Programmstart aktivieren. Therefore
you have to use the command line parameter „-l“. While starting
the program with the command line, simply enter the parameter
behind the start command („c:\programme\EMCprof>w32EMC
–l“). Another solution is to create a shortcut.
All information in logmode will be written to the file logfile.emc,
which is located in the program folder of w32EMC.

EMC Professional NET

20

21EMC Professional NET

4.2 Operation under Linux (NTP)

EMC Prof NET (19“) can be used with NTP under Linux. „NTP“

means Network Time Protocol. It is designed for the synchroni­zation of clients over TCP/IP. For the usage under Linux the V.24
output protocol has to be changed to XNTP (see chapter 5.3).

4.2.1 NTP installation

For easy installation of NTP you can find the shell script make_
all.sh on the CD-ROM at „tools\linux\get_ntp“. This script down-

loads NTP from the internet and compiles it.

Copy the folder „get_ntp“ to your hard disk. Now start make_
all.sh with the command „-/make_all.sh“. After the successful
application, NTP is compiled and ready for use.
End the installation with „make install“.

4.2.2 NTP configuration

NTP interacts with EMC Prof NET (19“) via the symbolic link:

/dev/refclock-0. If EMC Prof NET (19“) is connected with
COM1 for example, /dev/refclock-0 has to link to /dev/ttyS0 (for

COM2: /dev/ttyS1).
If your Linux is based on Kernel 2.4 or older, you can create the
link with „ln -s /dev/ttyS0 /dev/refclock-0“.
Since Kernel 2.6 udev administrates the In-/output device files.
To create a link to refclock-0 automatically by udev, there has to
be a „rule“ for this link.
Change to the folder rules.d in the udev folder (e.g. /etc/udev/
rules.d) and open the file 50-udev.rules. Add the following line to
the file. where the serial ports are defined:

KERNEL==“ttyS0“, NAME=“%k“, SYMLINK=“refclock-%n“,
GROUP=“uucp“

Please restart udev after this process.

# serial devices
KERNEl==“ttyS0“, NAME=“%k“,
SYMLINK=“refclock-%n“, GROUP=“uucp“
KERNEL==“tty[A-Z]*“, NAME=“%k“, GROUP=“uucp“
KERNEL==“pppox*“, NAME=“%k“, GROUP=“uucp“

Figure 12 50-udev.rules file

21EMC Professional NET

You have to enter the following lines into the file ntp.conf in order
to receive the time and date information of EMC Prof NET (19“)
regularly:

This means, the time and date information of the device re-
fclock-0 will be picked up by driver 12 of group 8. For testing
purposes you can enter 127.127.1.0. This makes NTP taking
the time and date information of the PC clock.

4.2.3 Starting NTP

To get detailled information about the quality of receive, please
use the programm ntpq. Start ntpq with the command „ntpq -c
clocklist“ auf.

If you start ntpq without further options, localhost will be the NTP
server. You can control ntpq with the command line.

server 127.127.8.0 prefer mode 12
logfile /var/log/ntp
logconfig =all
driftfile /var/log/ntp.drift

status=0000 clk_okay,
last_clk_okay,
device=“HOPF 6021“,
timecode=“\x02\x0c\x09150700070703\x0a\x0d\x03“,
poll=2, noreply=0, badformat=0, baddata=0,
fudgetime1=0.000, fudgetime2=0.000, stratum=1,
refid=DCF, flags=0,
refclock_time=“c2b40b14.00000000 Mon, Jul 7 2003 15:
07:00.000 UTC“,
refclock_status=“TIME CODE“,
refclock_format=“hopf Funkuhr 6021“,
refclock_states=“*NOMINAL: 00:30:41 (94.46%); NO RE­SPONSE: 00:01:48 (5.54%);
running time: 00:32:29“

Figure 13 ntpq -c clocklist

EMC Professional NET

22

23EMC Professional NET

With „peers“ a table of the active referencee clocks can be dis­played. An asterisk at the beginning of a line (*) shows the up­to-date time referencee.

4.2.4 Setup of a NTP daemon

Like all UNIX system services (daemons) ntpd should be started
by a rc-script. If you are using NTP of the RPM of SuSE Linux,
you will find such a rc-script in /etc/init.d/xntpd. With „# /etc/
init.d/xntpd start“ and „# /etc/init.d/ntpd stop“ you can start and
quit the NTP daemon. An example of this script, you can find on
the CD-ROM.

To start the rc-script automatically at each start of the system,
you have to make sure, that a link to /etc/init.d/xntpd is created
in the corresponding runlevels. Users of SuSE Linux can use
the runlevel editor in ‚yast‘.

If the synchronization was done correct, the following message
will be written to the NTP logfile:

remote refid st t when poll reach delay offset jitter
=========================================================
*GENERIC(0).DCF. 0 l 5 64 1 0.000 2.846 0.008

Figure 14 peers

ntpd[1103]: PARSE receiver #0: packet format „hopf Funk­uhr 6021“
ntpd[1103]: PARSE receiver #0: STATE CHANGE: -> TIME
CODE
ntpd[1103]: PARSE receiver #0: SYNCHRONIZED
ntpd[1103]: clock GENERIC(0) event ‚clk_okay‘ (0x00)

....................................

ntpd[1103]: time reset -0.745079 s

Figure 15 NTP logfile

23EMC Professional NET

4.3. V.24 protocols

EMC Prof NET (19“) has been designed for a lot of time aplli-

cations. Because different time formats and protocls are nec­cessary for the most applications, it is possible to change the
protocol, which is given out by the serial interface (see 5.3).

4.3.1 Gude standard time protocol

Gude standard time protocol was developed by Gude Analog­und Digitalsysteme GmbH based on CET/CEST especially for
Gude PC time receivers. More information can be found at
http://www.gude.info/wiki.

CET/CEST is the relevant time zone for central europe (Ger­many, Switzerland, Austria for example). The difference be­tween CET (Central European Time) and World Time UTC is
+1, between CEST (Central European Summer time) and UTC
is +2 hours.

4.3.2 Gude UTC time protocol

While using this v24. format, the time will be exported as UTC
time. This protocol is coded like the Gude standard time protocol.
More information can be found at http://www.gude.info/wiki.

4.3.3 XNTP time protocol

The XNTP time protocol was developed for XNTP applications.
More information can be found at http://www.gude.info/wiki.

EMC Professional NET

24

25EMC Professional NET

5 Configuration

5.1 Automatic configuration by DHCP

After power-on EMC Prof NET (19”) looks for a DHCP server
and requests an available IP address (for deactivation of that
feature see 5.2).

Please check the IP address allocated to EMC Prof NET (19”)
in the DHCP server settings to make sure that the same address
is used at every reboot.

5.2 Network configuration by GBL_Conf.exe

For changing the network properties manually, the program
GBL_Conf.exe is required. This tool is available for free on our
website www.gude.info.

Furthermore GBL_Conf.exe enables you to install firmware up­dates and to reset EMC Prof NET (19”) to its factory settings
(see 5.2).

Activate bootloader mode of EMC Prof NET (19”) and run
GBL_Conf.exe (see 5.1). The program will look automatically for
connected devices and will display their network configuration.

If the displayed IP address accords with the factory settings
(192.168.0.2), there is either no DHCP server available in the
network or no free IP address could be allocated.

Enter a free IP address and the according netmask in the entry
mask, then save these changes by clicking on Program Device

SaveConfig.

Restart EMC Prof NET (19”) by
switching it off and on again, so
that the changes will take effect.
Now click on Search in order to
have the new network configu-

ration displayed.

Figure 16 Gbl_Conf.exe

25EMC Professional NET

5.3 Configuration by Webinterface

Go to the website of EMC Prof NET (19”). Enter the IP address
of EMC Prof NET (19”) into the address line of your internet
browser:

http://”IP address of EMC Prof NET (19”)”/

and press LOGIN.

Now, an overview about the status of EMC Prof NET (19“) is
displayed.

To enter the configuration menu, click on „Configuration“ on the
upper left side of the screen.

Figure 17 Login

Figure 18 Status

EMC Professional NET

26

27EMC Professional NET

Configuration - Clock

LCD Display

Here you can choose, which time
format shell be displayed at the
LC-Display of EMC Prof NET
(19“). You can switch between
CET/CEST and UTC.

V.24 output protocol

Here you can choose the format
which shell be used by the RS232
interface. (see 4.3).

Language

Here you can change the langu­age, displayed in the LC-Display.
You can choose between German,
English, Dutch und Danish.

Time switch clock settings

Here you activate and configure the programmable relais outlet.
You can enter date and time for activation/deactivation of the
relais outlet. Confirm your settings by clicking at „Set“.
The settings are active, if the time switch clock is active. Activate
it and confirm by „Apply“.

Syslog debug output

Here you can activate the debug output via syslog.

Allow DCF77 time jump

Here you can activate time jumps. If active the time of the clock
can switch more than ten seconds in radio mode and more than
one hour when the mode changes from quarz to radio.

Figure 19 Configuration

- Clock

27EMC Professional NET

Configuration - IP Address

Hostname
Enter the host name of EMC Prof NET (19”). EMC Prof NET
(19”) uses this name to connect with DHCP server.

Special signs may destabilize your network.

IP Address

Here you can change the IP ad­dress of EMC Prof NET (19”).

Netmask

Here you can change the netmask
of EMC Prof NET (19”).

Gateway

Here you can change the standard
gateway of EMC Prof NET (19”).

Use DHCP

Here you can set, if EMC Prof NET (19”) shall get its TCP/IP set-
tings directly from your DHCP server. If DHCP is activated, EMC
Prof NET (19”) proves if a DHCP server is active inside of your
LAN. Then EMC Prof NET (19”) requests TCP/IP settings from
this server. If there is no DHCP server inside of your network, we
recommend to deactivate this function.

Figure 20 Configuration - IP -
Address

EMC Professional NET

28

29EMC Professional NET

Configuration - IP ACL

Reply ICMP-Ping requests
Here you can set, if EMC Prof
NET (19”) shell react on pings.

Enable IP Filter
Here you can activate the IP Ac­cess Control List (IP ACL) of EMC

Prof NET (19”).

If IP ACL is active, DHCP and
SNMP only work, if all neces­sary servers and clients are
registered in this List.

Configuration - HTTP

HTTP Port

Here you can enter the HTTP port
number, if necessary. Possible
numbers are 1 ... 65534 (standard:

80). To get access to EMC Prof
NET (19”), you have to enter the
port number behind the IP address
of EMC Prof NET (19”):

http://192.168.0.2:1720

Require HTTP Password

Password protected access can be activated here. In this case,
a user and an admin password have to be defined. Passwords
have a maximum lengths of 15 characters.

Administrators are authorized to switch all ports and to modify
the settings of EMC Prof NET (19”) and of all ports. The user­name of the admin is “admin”.

All changes need a restart of the firmware to get valid.

Figure 22 Configuration - HTTP

Figure 21 Configuration - IP
ACL

29EMC Professional NET

Configuration - SNMP

Enable SNMP-get

Here you can activate SNMP-get
protocol of EMC Prof NET (19”).

SNMP public community

Here you can enter the SNMP
public community.

Enable SNMP-set

Here you can activate SNMP-set
protocol of EMC Prof NET (19”).

SNMP private community

Here you can enter the SNMP private community.

Download SNMP-MIB
Here you can download the MIBs of EMC Prof NET (19”).

Use SNMP only if your network is fitted for.

More information about the SNMP functions of EMC Prof NET
(19”), you can find in chapter 5.5, on http://www.gude.info/wiki

or ask our support team.

Figure 23 Configuration - SNMP

EMC Professional NET

30

31EMC Professional NET

Configuration - Syslog

Use Syslog

Here you can activate Syslog of

EMC Prof NET (19”).

Syslog Server IP

If syslog is active enter here the IP
address of you Syslog server.

Syslog Port

If syslog is active enter here the port number, that your Syslog
server uses to receive syslog information.

More information about Syslog you can find in chapter 5.6, on
http://www.gude.info/wiki or ask our support team.

5.4 IP Access Control List

IP Access Control List (IP ACL) acts as an IP filter for your EMC
Prof NET (19“). Wether it is active hosts and subnets only can

contact EMC Prof NET (19“), if their IP adresses are stated in
this IP ACL, e.g.: „http://192.168.0.1“ or „http://192.168.0.1/24“

If you locked yourself out by mistake, please activate the boot­loader mode of EMC Prof NET (19“), start Gbl_Conf.exe and
deactivate IP ACL.

You can find more information about configuration of IP ACL in
chapter 5.3 or have a look at http://www.gude.info/wiki.

Figure 24 Configuration - Sys­log

31EMC Professional NET

5.5 SNMP

To get detailed status information of EMC Prof NET (19”) SNMP
can be used. SNMP communicates via UDP (port 161) with
EMC Prof NET (19”).

Supported SNMP commands:

- SNMPGET: request status information

- SNMPGETNEXT: request the next status information

You will need a Network Management System, e.g. HP-Open
View, OpenNMS, Nagios etc., or the command line tools of
NET-SNMP to request information of EMC Prof NET (19”) via
SNMP.

SNMP Communities

SNMP authentifies requests by communities. The public com­munity has to be added to SNMP-read-requests. You can see
the SNMP communites like passwords. SNMP v1 and v2c trans­mit the communities without encryption. Therefore it is simple to
spy out these communities. We recommend to use a DMZ or IP
ACL.

MIBs

All information, that can be requested or changed, the so called
„Managed Objects“, are described in „Management Information
Bases“ (MIBs).

At least, there are so called Object Identifiers (OID) subordi­nated to those three structures. An OID describes the location of
an information inside a MIB.

You can find more information about configuration of SNMP in
Chapter 5.3 or have a look at http://www.gude.info/wiki.

EMC Professional NET

32

33EMC Professional NET

5.7 Presentation of the recent configuration

After power-up of EMC Prof NET (19“) you can see the IP
address of the device in the display, when you press the Boot­loader button. Additional information is given by the sign in front
of the IP address:

* Static IP address, DHCP disabled

D Dynamic IP address, provided by DHCP

F DHCP is enabled, EMC Prof NET (19“) did not receive a

valid IP address. The shown IP address is default

5.6 Syslog

Syslog messages are simple text messages transmitted to a
syslog server using UDP.
Linux OS regularly have a syslog daemon installed, e.g.
syslog-ng.
For Windows there are some freeware tools available.

On following events, EMC Prof NET (19“) will send a syslog

message:

- Booting up

- Activation/deactivation of syslog

- Switching of the relais

You can find more information about configuration of Syslog in
chapter 5.3 or have a look at http://www.gude.info/wiki.

33EMC Professional NET

6.1 Bootloader mode

To activate the bootloader mode of EMC Prof NET (19”) the
Bootloader button must be pushed while restarting the device.
In bootloader mode it is possible to disable the password protec­tion, to update the firmware and to restore the default settings by
running the program GBL_Conf.exe.

The bootloader mode of EMC Prof NET (19”) is indicated by
“BOOT-LDR” appended to the device name in the program win­dow of GBL_Conf.exe and by the blinking of the V.24 led. The
LC-display shows “Bootloader”, too.

During bootloader mode an alteration of the relais is not pos­sible.

6.2 Firmware update

In order to update the firmware the program GBL_Conf.exe and
the latest firmware are needed.

Start EMC Prof NET (19”) in boot mode (see 4.1) and run the
program GBL_Conf.exe. On the left side of the program win­dow all EMC Prof NET (19”) that are in the network are listed.
Select the one, that should be updated, click on Program De-
vice→Firmware Update and determine the location of the new
firmware.

Please note: The up-to-date firmware and GBL_Conf.exe can
be found at www.gude.info, free to download.

6 Features

EMC Professional NET

34

35EMC Professional NET

6.3 Technical information

EMC Professional NET

Interfaces: Ethernet, potential free relais outlet,
9 Pin D-SUB (RS232),
BNC Connector for active antenna

Network: 10 MBit/s 10BaseT Ethernet
Protocols: TCP/IP, NTP, HTTP, SNMP v1/v2c,
Syslog
Power supply: Power Adaptor (9V)

Operating temperature: 5°C - 55°C
Dimensions: 17 x 10,5 x 6,5 cm (L x B x H)
Weight: 0,73 kg

EMC Professional NET 19“

Interfaces: Ethernet, potential free relais outlet,
9 Pin D-SUB (RS232),
BNC Connector for active antenna

Network: 10 MBit 10baseT Ethernet
Protocols: TCP/IP, NTP, HTTP, SNMP v1/v2c,
Syslog
Power supply: Cold devices inlet (IEC C13, 10 A,
230 V)
Operating temperature: 0°C - 50°C
Dimensions: 19’’ / 1 RU

Active antenna (BNC)

Operating temperature: -15°C - 60°C
Dimensions: Length: 21,5 cm, Diameter: 2 cm
Cable: Length:5 m, RG174/U
(Length can be up to 150m)

35EMC Professional NET

The software w32EMC includes a help file. There you can find
more information for installation and operation of EMC Prof
NET (19“).

The up-to-date software and firmware you can download at
www.gude.info.

In case of further questions about installation and operation
of EMC Prof NET (19“) please take a look at www.gude.info/
wiki and do not hesitate to contact our support team at
[e-mail].

7 Support

EMC Professional NET

36

Declarations

Hereby, we confirm EMC Professional NET (19“) follows the
restrictions of RoHS.

GUDE Systems GmbH

Von-der-Wettern-Str. 23

5 1149 K o e l n

Tel.: [phone]
Fax: [phone]

E-Mail: [e-mail]
Web: www.gude.info

Contact