Basler Electric BE1-851 - Manual (Page 20)

output contact including OUTA. Over 20 alarm conditions are available to be monitored including user
definable logic conditions using BESTlogic.
Active alarms can be read and reset from the HMI or from the communication ports. A historical sequence
of events report with time stamps lists when each alarm occurred and cleared. These reports are
available through the communication ports.
Version Report
The version of the embedded software (firmware) is available from the HMI or the communication ports.
The unit serial number and style number is also available through the communication ports.
BESTlogic™ Programmable Logic
Each BE1-851 protection and control function is implemented in an independent function block. Every
function block is equivalent to its single function, discrete device counterpart so it is immediately familiar
to the protection engineer. Each independent function block has all of the inputs and outputs that the
discrete component counterpart might have. Programming with BESTlogic is equivalent to choosing the
devices required by your protection and control scheme and then drawing schematic diagrams to connect
the inputs and outputs to obtain the desired operating logic.
Several preprogrammed logic schemes and a set of custom logic settings are provided. A
preprogrammed scheme can be activated by merely selecting it. Custom logic settings allow you to tailor
the relay functionality to match the needs of your operation’s practices and power system requirements.
Security
Security can be defined for three distinct functional access areas: Settings, reports, and control. Each
access area can be assigned its own password. A global password provides access to all three functional
areas. Each of the four passwords can be unique or multiple access areas can share the same password.
As second dimension of security is provided by allowing the user to restrict access for any of the access
areas to only specific communication ports. For example, you could set up security to deny access to
control commands from the rear RS-232 port that is connected through a modem to a telephone line.
Security settings only affect write access. Read access is always available in any area through any port.
Human-Machine Interface
Each BE1-851 comes with a front panel display with five LED indicators for Power Supply Status, Relay
Trouble Alarm, Minor Alarm, Major Alarm, and Trip. The lighted, liquid crystal display (LCD) allows the
relay to replace local indication and control function such as panel metering, alarm annunciation, and
control switches. The LCD has automatic priority logic to govern what is being displayed on the screen so
that when an operator approaches, the information of most interest is automatically displayed without
having to navigate the menu structure. The order of priorities is:
1. Recloser active
2. Targets
3. Alarms
4. Programmable automatic scrolling list
Up to 16 screens can be defined in the programmable, automatic scroll list.
Communication
Three independent, isolated communication ports provide access to all functions in the relay. COM0 is a
9-pin female RS-232 port located on the front of the case. COM1 is a 9-pin female RS-232 port located on
the back of the case.
An ASCII command interface allows easy interaction with the relay by using standard off the shelf
communication software. The ASCII command interface is optimized to allow automating of the relay
setting process. Settings files can be captured from the relay and edited using any software that supports
the *.txt file format. These ASCII test files can then be used to set the relay using the send text file
function of your communication software.
Modbus™ and other common protocols are optionally available for the RS-485 communication port. A
separate instruction manual is available for each available protocol. Consult the product bulletin or the
factory for availability of these options and instruction manuals.
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