The requested software / document is no longer marketed by Saia-Burgess Controls AG and without technical support. It is an older software version which can be operated only on certain now no longer commercially available products.
On this page we provide all obsolete S-Monitoring applications. Please don't use this application for new projects.
S-Web Technology / ADSL
How to set up DynDNS on a router? (FAQ #101197)
For connecting a PCD to the internet a router is required. In case this router "knows" a DynDNS service, it is possible to find this this router by name.
The attached document contains an example of a step by step procudure for configuring dynamic DNS on a router (which "knows" DynDNS).
- Note that the choice of the router or the DynDNS service from this document is sheer coincicence and does not mean that only this router works with PCD systems.
- Saia-Burgess Controls AG can not give support for the router configuration or the DynDNS setup. For support request regarding the router functionality or DynDNS please contact the according provider.
How to know the IP Address of a device addressed with an URL? (FAQ #101064)
The use of DNS (Domain Name Service) is very convenient for remembering the address of a host (e.g. a PCD3 connected to the internet with a DSL router). However, in some cases it is necessary to know the IP address of this host rather than the domain name.
How to translate the URL of a host to its IP address?
This task can be done by the tool "nslookup" which is installed on every Windows system:
- Open the DOS console (from the "Windows Start menu" select "Run..." and type in "cmd")
- Type in the the instruction
(don't forget the point after the URL)
As response you will receive the IP address of the requested name. In the screenshot above the IP address of the host "durrer.dyndns.tv" is 126.96.36.199.
How to connect a PCD behind an (A)DSL router? (FAQ #101007)
As a PCD system does feature various "Internet communication features" (Web Server, Ether-S-Bus, SMTP etc.), it suggests itself to connect it to the Internet using e.g. an (A)DSL router. This FAQ is aimed to explain some key-points to be considered for accessing a PCD over the Internet.
For connecting a PCD to the internet using an ADSL router, the principal understanding of the functionality and tasks of a router need to be understood. In a second step, the communication protocol for the connection is to be defined because
every of the following protocols does require other configurations of the router. The attached document tries to explain the router functionality and tries to point out relevant information for connecting a PCD to the Internet and realizing the communication over the following protocols:
- http direct (for accessing the Web Server of the PCD, don't forget the password protection of the Web Server)
- Ether-S-Bus (not recommended unless you are using a secure VPN connection)
- for programming the PCD with PG5
- for connecting a PCD which does not feature http direct with WebConnect)
- SMTP (for sending EMails from the PCD)
For each of these protocols, please refer to the corresponding chapter in the attached document.
Important remark concerning security
Please consider the fact that the connectivity of a PCD on the internet does also mean that everyone can connect to the system. Therefore the interfaces over which the PCD can be reached from the internet need to be protected additionally (if the web server can be reached from the internet and no security is implemented, everyone can e.g. modify Register values on the PCD which can lead to malfunction of the application).
We therefore recommend whenever possible to use a VPN connection rather than just forwardig ports.
If this is not possible:
- Enable the password protection of the S-Web server (this can be configured in the PG5 Device Configurator)
Note that the password macro in the Web Editor does NOT secure the access to the media of the PCD (but only the access to the Web Editor Pages)
- Remove the default user "root" from the FTP server (can also be done in the PG5 Device Configurator)
- Do not enable Ether-S-Bus unless the PCD is connected over a VPN connection only (because even with the password protection of S-Bus will still allow everyone to modify media values as e.g. Register Values)
How I have to configure my ADSL router? (FAQ #100454)
The settings of the ADSL router which we do use in Murten are shown on the attached document.
Depending on your configuration and your needs you have to adapt the settings of the ADSL router.
How can I know the TCP/IP address of a public e-mail server? (FAQ #100453)
The instruction nslookup allows to find out the TCP/IP address of a public e-mail server.
To know the e-mail address of a public e-mail server enter the following string on the command window of windows.
After this you have to enter the smtp address of the e-mail server.
(On the example below it's the address smtp.green.ch)
The TCP/IP address of the e-mail server is shown on the next line below the name of the smtp server.
(On the example below it's the address 188.8.131.52)
Experiences with ADSL Routers (FAQ #100203)
For our Webserver Demo installation we have worked with different ADSL Routers, none of which was perfect.
Our Webserver Demo installation is connected to the Internet via an ADSL Link on an ISDN line, which is provided by www.green.ch. This provider offers fixed IP addresses for a good price and can be recommended vividly to all Swiss Customers.
Criterias to choose an ADSL Router
- you need to know whether an analogue or ISDN version is required (depends on the telephone line)
- it must support "nailed up connections", which means that if the internet connection is not closed periodically and if for some reason the connection gets lost anyway, the Router re-establishes the connection
- it should contain a firewall
- it should support address translation, so you can route telegrams to port 80 to the PC with WebConnect and telegrams to port 5050 to a PCD directly. Other ports should be blocked inwards
- an integrated switch is quite useful
Zyxel Prestige 650 ME-I
- does not support nailed up connections, so you need to run a software on the frontend PC which simulates Web traffic (for instance come.to/StayAlive ), to make sure the installations stays available from outside. Without such a tool the Router closes the Internet connection after a while and you cannot access the frontend PC or PCD anymore until you create Web traffic on the PC
- user friendly configuration tool
Zyxel Prestige 650 H-I
- nice product with rich features, 4 Port Switch, supports nailed up connections. Didn't work in our installation, Web traffic was only possible from the LAN to the WAN, but not vice versa, independent of the firewall configuration
- user friendly configuration tool
Devolo Microlink ADSL Modem Router
- nice product with rich features, 4 Port Switch, supports nailed up connections. Blocks periodically in our installation, a power down / power up is necessary to re-establish the Internet connection. Since we cut the supply of the unit for a moment at noon, the product works fine...
- very bad documentation, configuration tool is not user friendly, not suitable for people that configure an ADSL Router for the first time
- we bought standard low price Routers, which are designed to let a workgroup share an Internet connection. With the Webserver we use the product the other way around, which can cause problems with some products
- do not expect to get useful support from the suppliers of ADSL Routers in this class. If the product does not work in your installation, it is worth returning it and try another model from the same or from another manufacturer
- using an output of the PCD to cut the supply of the Router periodically has proved to be a good idea. The cheap routers are usually used in an environment where somebody can interact easily in case of problems (private use at home), for Webserver applications in the field this is not always that easy