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S&C Instruction Sheet 1072-530
41
SpeedNet Client Tool
Multiple SCADA
Masters
SpeedNet Radios have a feature that allows multiple SCADA masters that use the same
SCADA address to connect to a single SpeedNet Radio. When this feature is enabled, the
connected SpeedNet Radio continually monitors DNP traffi c. For multiple SCADA masters
using the same SCADA address, the SpeedNet Radio will consider the master to be the
device that sent the most recent data packet. If the active SCADA master experiences a
failure, the SpeedNet Radio will automatically forward packets from the backup SCADA master.
Configuring this feature is simple. When building the SCADA table using the UDP/IP
transport option, each SCADA master is assigned the same SCADA Address, and each
SCADA master has a unique IP address.
For example, assume there are two SCADA master devices, one with an IP address
of 192.168.200.20 (primary SCADA master) and one with an IP address of 192.168.200.30
(secondary SCADA master). To create the table entry for the primary SCADA master,
enter 192.168.200.20 into the IP Address field. Enter 25 into the SCADA address field. To
create the table entry for the secondary SCADA master, enter 192.168.200.30 into the IP
Address field. Enter 25 into the SCADA address field.
Repeater/SpeedGate
Serial Mode
Figure 68. Repeater SpeedGate settings.
The SpeedNet Repeater/SpeedGate
Serial Port
mode provides the same confi guration
parameters as the DNP
Serial Port
mode, see Figure 68 for details. As shown in Figure
68, one additional parameter is available when the Repeater/SpeedGate
Serial Port
mode has been selected.
• Enable Battery Testing
—Provides the ability for SpeedNet Radios to periodically
test the status of the connected backup battery system in S&C SpeedNet repeaters
and SpeedGate systems. This feature multiplexes proprietary battery charger control
and status messages into the serial port stream that is also used for DNP. The charger
provides another serial connection for DNP communication to other devices that have
the battery charger messages stripped out. When this feature is enabled, the results
of battery tests can be seen on the
Batt Status
tab of the
Statistics
window. See
Figure 88 on page 60. When
Enable Battery Testing
is confi gured, within 90 seconds
the fi rst battery test will occur. When this test has completed, the battery will be tested
automatically every 24 hours.
If the Repeater/SpeedGate loses ac control power, the battery test will run once an
hour until ac control power has been restored.