Novatech Bitronics M87X Series, Manual

Page: 71 / 184

ML0021 August 15, 2018
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Copyright 2018 Bitronics, LLC
5.3.4 Manual Trigger
Refer to the appropriate protocol manual for information. Manual Triggers may also be
activated through BiView using Telnet, Zmodem, or under Modbus or DNP3 protocols
(depending on what register set/ point list is chosen). When a manual trigger is initiated, it
bypasses the standard trigger setup, and directly initiates the action specified by that
command.
5.3.5 Logical Combinations of Triggers
Triggers can be logically combined in groups to perform actions. Each trigger is assigned
to the same Virtual Output in the Configurator, and the type of logic function (AND or OR)
is selected. That Virtual Output is then configured as a new trigger, with the appropriate
action assigned. If "No Logic" is selected, then only one trigger can be assigned to a
particular Virtual Output
.
5.3.6 Cross Triggering Multiple 70 Series Units (Inter-triggering)
Under certain circumstances, it is advantageous that a 70 Series device that captures a
record, also functions in a capacity to send out a pre-determined trigger condition. That
trigger condition, which is based on values measured by the instrument, can be used for
the purpose of cross triggering (also referred to as inter-triggering) other 70 Series
devices. Cross triggering is an essential requirement for synchronizing the equipment in a
substation, where it is necessary that multiple instruments sense the occurrence of
particular conditions
There are a number of ways to accomplish cross triggering across 70 Series devices. The
cross triggering mechanism can be accomplished by way of a physical interconnection
using Digital I/O, or by way of virtual messaging, which is communicated over an Ethernet
network connection. Refer to Appendix A for examples of setting up cross triggering
through either Digital I/O connections, GSSE messaging [through UCA], or GOOSE
messaging [through IEC61850].
A P30 or P31 module is necessary to set up cross triggering using a Digital I/O
interconnection method. An Ethernet option module is necessary in order to set up either
GSSE messaging [through UCA] or GOOSE messaging [through IEC61850].
Units may both send and receive cross triggers from and to multiple other units.
5.3.7 Fault Distance Triggers
Fault distance calculations are initiated as an action from the configurable Triggers. For a
chosen trigger, select the Fault Distance checkbox, and then the associated phase from
the dropdown box. A simple limit trigger such as RMS Amps A 1 > 2000 can be set to
calculate an A1 fault. Similarly, the Digital Inputs can be used to drive the calculations
when connected to the outputs of a protection device. More complex conditions can be
specified with the use of logic functions. For example: