Basler Electric BE1-11t - Manual (Page 249)

9424200995 Rev H 237
BESTlogic
™Plus
BESTlogicPlus Programmable Logic is a programming method used for managing the input, output,
protection, control, monitoring, and reporting capabilities of Basler Electric's BE1-11t Transformer
Protection System. Each BE1-11t has multiple, self-contained logic blocks that have all of the inputs and
outputs of its discrete component counterpart. Each independent logic block interacts with control inputs
and hardware outputs based on logic variables defined with BESTlogicPlus. BESTlogicPlus equations
entered and saved in the BE1-11t system's nonvolatile memory integrate (electronically wire) the selected
or enabled protection and control blocks with control inputs and hardware outputs. A group of logic
equations defining the logic of the BE1-11t is called a logic scheme.
One default active logic scheme is preloaded into the BE1-11t. This scheme is configured for a typical
transformer application and virtually eliminates the need for "start-from-scratch" programming.
BESTCOMSPlus
® can be used to open a logic scheme that was previously saved as a file and upload it
to the BE1-11t. The default logic scheme can also be customized to suit your application.
BESTlogicPlus is not used to define the operating settings (modes, pickup thresholds, and time delays) of
the individual protection and control functions. Operating settings and logic settings are interdependent
but separately programmed functions. Changing logic settings is similar to rewiring a panel and is
separate and distinct from making the operating settings that control the pickup thresholds and time
delays of a BE1-11t. Detailed information about operating settings is provided in each chapter of the
various protection and control functions.
Overview of BESTlogic
™Plus
BESTlogicPlus settings are made through BESTCOMSPlus. Use the Settings Explorer to open the
BESTlogicPlus Programmable Logic tree branch as shown in Figure 191.
The BESTlogicPlus Programmable Logic screen contains a logic library for opening and saving logic files,
tools for creating and editing logic documents, and protection settings.
Figure 191. BESTlogicPlus Programmable Logic Tree Branch
BE1-11t BESTlogic
™Plus