Rs485 Interface, Electrically Isolated - Honeywell EK280 Applications Manual

EK280
− For the following customized settings and tests required, press "Navigation" on the left-hand side
and then "Parameterize
i
All the values listed in enSuite under "Parameters" can be found on the "Serv." display tab of the
EK280 under the same path.
c) Setting time window for potential data retrievals
In the base configuration now displayed you can define time windows, during which data can be cyclically
retrieved from the EK280 via the modem. Time windows 5 and 6 are reserved for EK280 operation with an
MTL5051, and generally only time window 5 is used. Redundant time windows can be deactivated by setting
the time window start and end to the same value.
− In the top of the device window open the path "Parameters" > "Interfaces" by clicking on the relevant
plus signs, and then select
− For call window 5, set the start to "00:00" and the end to "23:59" and then select the "Transfer
changes to device" icon at the top of the enSuite window.
− Wait for around a minute for the EK280 to detect the FE260.
Press the "Transfer changes to
−
7.5.2.5 Retrieving data with enSuite
− Connect your PC or laptop to the MTL5051 as an "RS232 device" as described in  chapter 7.5.2.1.
− If the communication link to the EK280 is via the optical interface, press the "Disconnect" or the
"Disconnect from all
EK280 and then wait for the "o" on the EK280 display to stop flashing.
− Start the enSuite program (i.e. Start > Programs > Elster > enSuite).
− Select the "Search
− In the "Search device and connect" window select the "LIS200" tab.
− Select "Access >
− Select the "Baud rate:"
− Press "OK".
− After a few seconds "connected" is displayed at the bottom of the "Output" window.
− Once the communication link is set up, you can carry out checks, for instance view certain
parameters. To do this press "Navigation" on the left-hand side of the enSuite window and then
"Parameterize online" in the bottom of the navigation window, then click on the plus sign next to
"Parameters" and then its subsections.
− In enSuite press the "Disconnect" symbol or

7.5.3 RS485 interface, electrically isolated

7.5.3.1 Wiring
i
When the EK280 is connected to a RS485 bus there must be no terminal resistors connected to
the bus!
Application Manual
online" at the bottom of the navigation window.
"Call time windows".
device" icon at the top of the enSuite window.
devices" icon to terminate the communication link between enSuite and the
device..." icon (magnifying glass icon).
User"  "Administrator" and "Connection" 
"9600".
"Serial
"Disconnect from all devices" to end the test retrieval.
RS232".
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