Com600 Watchdog; External Watchdog For Com600; Network Fault Tolerance For Com600 - ABB COM600 series User Manual

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3.9.
3.10.
3.11.
COM600 series, version 4.1
User's Manual
Address Filter property in the Gateway object. Otherwise HMI is considered a remote
HMI. The state of the station/remote switch controls whether the operations are allowed
from HMI or not.
The station/remote switch for the HMI is configured with the SLD editor by inserting
the Station Switch Indicator symbol to the substation SLD and specifying the data object
for the position information. If a real switch indication is not available, it is possible to
use a simulated data from a virtual IED. This can be done by creating an IED configuration
in the communication structure and setting the simulation mode of the IED to true.

COM600 Watchdog

The COM600 computer has a built-in hardware watchdog function. The function can be
enabled with SAB600 from the Gateway object properties. When enabled, the watchdog
monitors the COM600 software. If the COM600 software fails to send the keep-alive
triggering to the watchdog within a certain time, the watchdog restarts the COM600
computer.

External watchdog for COM600

COM600 can be configured to send periodically a command to an IED connected to
COM600. This function can be used to monitor the health of COM600. For example,
SACO 16D2 can be connected with SPA protocol to COM600 and configured to create
an alarm if no command from COM600 is received within specified time. Configuration
of an external watchdog device is described in 6.8, Configuring external watchdog for
COM600.

Network Fault Tolerance for COM600

COM600 can be configured to provide a certain level of tolerance against network failure
by using either the ABB DuoDriver feature or the Intel Teaming Feature, Switch Fault
Tolerance. These features are available when the optional dual port PCI Ethernet network
adapter is used.
DuoDriver
DuoDriver implements the Parallel Redundancy Protocol (PRP) for Ethernet as specified
in IEC 62439 DIS. PRP is based on duplicated networks, where each message is sent
via both networks, the receiver node accepts the first received message and discard the
duplicate. Message replication and discard function is done by the DuoDriver and it
hides the two networks from the upper level applications. In PRP there is practically no
switch over time in the case of one of the network fails as every message is always sent
to both networks. DuoDriver has diagnostic data, which can be read with IEC61850 OPC
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