Ee240 Network Setup; Hardware Settings - E+E Elektronik EE240 User Manual

5

EE240 Network Setup

Please note: A thorough site evaluation at the very start of the project is highly recommended
for trouble free setup and commissioning.
The stable and failure free function of the EE240 network, as well as its smooth setup and putting into
operation, depends on the topology of the network, which includes the type and the hardware setup
(remote probes, remote antennas) of the transmitters and routers, their exact locations and the wireless
signal strength at each network component.
A thorough site evaluation is of paramount importance for a performant network design and it shall be
done at the very beginning of the project. The site evaluation includes choosing the exact place of each
component based on testing the actual strength of the wireless signal (min. 50% strength required for
safe operation!) at each location.
Please contact your local E+E representative for assistance with your wireless project, with the site
evaluation and the design of the network.
5.1

Hardware Settings

After mounting and wiring the base station as well all the EE244 / 245 transmitters, EE244-R routers,
EE07 and EE871 sensing probes and antennas, proceed as follows:
1. Power up the base station, the routers and the transmitters. During the initializing time, the display
(where available) will shortly show "Init"
2. Establish the wireless connection for each of the transmitters and routers as follows. Please
consider that a base station can communicate directly with max. 10 devices. For more devices in the
network it is necessary to add routers. Please observe the network topology example in Fig. 1.
• For operation as Closed System: Press and hold for 3 seconds the "CONNECT" button of
the EE242 base station. The base station switches to connect mode for 30 seconds, which is
indicated by the LED next to the "CONNECT" button.
For operation as Open System: There is no need to press the connect button. The EE242 base
station is always in connect mode.
• If the base station is already connected to a PC and the webserver is open, a count-down is
available on the web server.
• Within the 30 seconds press and hold for 3 seconds "CONNECT" button of the transmitter or
router. For a device with display press and hold the "CONNECT" button till the display shows
"Conn".
• An active wireless connection is indicated on the transmitter / router display by the symbol ><
which continuously shows on the optional display.
• All active wireless connections can be seen on the webserver in the "Transmitters" section, see
chapter 6.2.2 Transmitters.
Please note: For an EE244 transmitter without display, it is highly recommended to use a
spare display (or a display from another EE244) just for the setup, see chapter 4.2.3 Operating
Components of EE244 and EE245. Beside the indication of the active connection, one can
also see if the sensing probes have been recognized by the EE244 and easily check the actual
wireless signal strength, see push-button "CONNECT", chapter 4.2.3.
• The blinking >< symbol on a transmitter display indicates a poor or fluctuating wireless
connection.
• An active wireless connection is indicated at the base station by the presence of measured data
at the analogue outputs or on the optional display.
• Set the desired transmission interval of each transmitter (default: 5 minutes) using its TIME
switch, see chapter 4.2.3 Operating Components of EE244 and EE245.
• Repeat above procedure for the other transmitter and routers in the network.
3. For a network with more than 10 transmitters: after connecting first 9 transmitters to the base station
as described above, establish the wireless connection to a router. Then continue with connecting up
to 9 further transmitters as above; these transmitters will connect automatically to the base station
through the router. Then connect a second router, and so on.
User Manual EE240 Wireless Sensor Network
13