DSE DSE890 - Page 42

Setup
057-165 ISSUE: 9.0
Page 42 of 53
Parameter
Description
Historic upload
interval
Determines the period at which the DSEGateway
®
uploads its datalog to the
WebNet server.
Shorter upload intervals increase the number of connections to the
DSEWebNet® Server and may increase data costs depending upon the
service contract with the internet provider.
Historic Snapshot
Interval
Where Data Resolution is configured to be Snapshot, this determines the
period at which the DSEGateway
®
uploads a snapshot of the instrumentation to
the WebNet server.
Shorter upload intervals increase the number of connections to the
DSEWebNet® Server and may increase data costs depending upon the
service contract with the internet provider.
5.5.1.1 MASTER
These are the settings of the DSEGateway
®
port that is used to connect to the DSE controller).
Parameter
Description
ID / IP
When Port is set to Ethernet – IP address of the selected controller
When Port is set to RS232/RS485 – Modbus slave address of the selected
controller. Where multiple devices are connected (RS485), a unique ID must be
used for each controller.
Port
This is the port that is connected to the DSE controller.
RS232: Connection to a single controller via RS232 NULL Modem (crossover)
cable with female 9 pin D connector terminations.
RS485: Connection to one or more RS485 enabled controllers using suitable
RS485 connection cable.
Ethernet: Connection to an Ethernet network of one or more controllers.
USB: Single connection to a supported DSE controller by USB A – USB B cable.
TCP Port/Baud
When Port is set to Ethernet – TCP port to use for Modbus (usually 502). Each
separate entry must use a unique port number.
When Port is set to RS232/RS485 – Baud rate of the selected controller.
Data Resolution
High, Medium, Low, Snapshot
This sets the level at what the DSEGateway
®
classes as a change in value. The
DSEGateway
®
monitors the controller’s data and changes are logged in its
internal memory. Selecting a higher resolution level increases the amount of
logged data, hence increasing the amount of data that is sent to the WebNet
server. This may increase data costs depending upon the service contract with
the internet provider.
Data is logged where the value changes by the configured amount. If there is no
change in the data, there is no data to record in the log. Any logged data is
uploaded to the DSE WebNet Server at the Historic Upload Interval. This may
result in ‘empty’ reports if there is no logged data to upload.
Data
Resolution
High
Medium
Low
Snapshot
Factory setting
1%
5%
10%
See Below
Snapshot: Where Data Resolution is configured to be Snapshot, this determines
the period at which the DSEGateway
®
uploads a snapshot of the instrumentation
to the WebNet server, regardless of how much it has changed. This setting
prevents ‘empty reports’ that occur where no data is logged due to values
changing by small amounts, below the setting of the Data Resolution.