PCS-9794 can adapt to the signal conversion need of different
projects and realize the data exchange between station
level and bay level network communications.
Information acquisition of relay, meter and other IED
Through its serial ports and Ethernet ports, this device can
communicate with relay, meter and other IED to gather their
information such as SOE and operation signal.
This device can communicate with local SCADA and
protection management system.
This device can communicate with RTU to realize the
data transmission to dispatching center or distributed
The mapping transmission tables for SCADA or RTU
can be customized independently.
Communication status supervision
The mapping transmission tables for SCADA or RTU can be
The signal synthesis function is supported with the help of
the configuration tool PCS-COMM. Logical and mathematic
operation of data such as AND, OR, NOT, XOR, +, -, × and ÷
can be proceed for the transmission to remote control center.
Local binary output
Several output contacts are equipped with the optional IO
module to realize logic output. These outputs are configurable
through the auxiliary software.
Configurable LED indication
Several LEDs are equipped on the device HMI panel to indicate
a binary signal, such as alarm, communication state,
switchgear position, etc. Some of them are defined by default
while the others are configurable in 3 colors (green, red
and yellow) through the auxiliary software.
All device critical manipulations, such as remote control and
setting modification, need a user authority check. The authority
password is configurable via local LCD.
Command record and query
This device records all the commands and operations, which
include control selection, control execution, regulation, setting
modification selection, setting modification execution,
signal reset, etc. All these records can be viewed and queried
History event record
This device automatically records the events during its service,
which include self running state change, alarm from
connected IED, communication failure alarm, etc.
Double device redundancy strategy
Several device redundancy strategies are supported. The
2 devices are completely electrically independent. Their
power supplies, communication ports and programs run independently.
The inter-device exchange is realized electrical
and network connection.
Consistency IP for dual network
For the downlink dual network mode with 2 devices, master
and slave communicate with substation IEDs in using the
same substation network IP address.
Time synchronization (79)
This device supports several time synchronization mode,
that include PPS, PPM, IRIG-B, timing message and SNTP.
Thus, internal clocks of connected IEDs will be unified in the
On-line maintenance and monitoring
This powerful function enables the engineer to monitor the
running status of this device through network, including running
information print, message display of Ethernet port and
serial port, on-field configuration, database view, virtual measurement,
file transmission, remote rebooting, etc. With all
these advanced functions, the substation upgrade becomes
During device service, it keeps a full supervision on software
and hardware. Once an abnormality occurs, the device will
be self-blocked to ensure no further mal-operation and send
an alarm. For the dual device mode, if the abnormal device
is on-duty, it will not only block itself but also activate the
backup device to take over all its task to ensure the stability