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4 Communicating with the Recorder
D03283R01.10 TESLA LITE User Manual 4-15
4.9 Accessing SCADA Services
The recorder supports DNP3 (Level 2) and Modbus SCADA protocols as stan-
dard features. This section describes how to connect and configure the servic-
es. Protocol details, including point lists, are provided in the appendices.
Serial Port
Connection
Both DNP3 and Modbus protocols are available on the recorder’s serial Port
404, an RS-232 DCE port with a female DB9 connector. The port is wired to
support a connection to a PC serial port (or equivalent) using a standard
straight-through male to female serial cable. An external RS-232 to RS-485
converter can be used to connect to an RS-485 network. For port pin-out and
cabling information see “Communication Port Details” on page 4-20.
Ethernet
Connection
The DNP protocol can also be available over Ethernet using TCP or UDP. A
standard 100BASET Ethernet cable is required.
The Ethernet port can support DNP SCADA and user interface access via TES-
LA Control Panel at the same time.
For details on setting the recorder’s IP address, “Maintenance Menu and Error
Handling” on page 12-1.
Protocol
Settings
Configuration of the SCADA protocol and communication parameters is done
through the recorder user interface. Use TESLA Control Panel to connect to
the recorder, then go to Configuration editor section to access SCADA Com-
munication from the Elements Tree. Setting descriptions follow.
Figure 4.11: SCADA Protocol Settings
From Config Edit select
SCADA Communications
.