EK280
Application Manual
112
7.4.3.2 EK280 jumpers
X6: No jumper
or one jumper on the pins located
near the terminals
X5: No jumpers
or two jumpers on the pins located
near the terminals
("Park position")
If a connected RS485 interface device has a direct or capacitive ground potential connection, there is a risk
of interference coupling via ground loops, which may affect pressure or temperature measurements. The
position of the two jumpers on X5 means that the EK280 interface is electrically isolated from the rest of the
circuit and therefore electromagnetic interference coupling is prevented.
To power the decoupled EK280 interface a voltage of between 5 and 8 volts (3 mA approx.) must be connected
to the "Ri" and "GND" terminals.
7.4.3.3 Parametrization of the EK280
i
For parameterization of the EK280 you will require a connection cable for the optical interface as
well as the enSuite application, which can be downloaded for free at www.elster-instromet.com.
a) Closing the time windows
In order that the parameterization works correctly the time windows 5 and 6 must be closed. To do this:
Connect a PC or laptop with enSuite installed to the EK280 optical interface using the connection
cable.
Start enSuite and set up the communication link to the EK280 (see chapter 3.1 "Setting up the
communication link to the EK280 via optical interface", page 15).
Select "
Navigation
" on the left-hand side and then "
Parameterize online
" at the bottom of the
navigation window.
In the top of the device window open the path "
Parameters
" > "
Interfaces
" by clicking on the relevant
plus signs, and then select "
Call time windows
".
In call windows 5 and 6 set start and end to the same value for each one and then select the
"Transfer changes to device" icon at the top of the enSuite window.
Then wait a minute, for any communications activity in progress on the EK280 to be safely stopped.
b) Send parameter file
Send the following parameter file to the EK280. (see Chapter 3.6, page 17):
EK280_xvx. - RS485 (without Modem) (*)
18
For the following customized settings and tests required, press "
Navigation
" on the left-hand side
and then "
Parameterize online
" at the bottom of the navigation window.
i
All the values listed in enSuite under "
Parameters
" can be found on the "
Serv.
" display tab of the
EK280 under the same path.
18
The "x" stands for the version of software on the device, e.g. "2v2".
The star * stands for a small letter which indicates the version of the file, e.g. "a".