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Profibus PA Panel Display for 8 Variables

Type: BA688CF-P

6 Operator Pushbuttons

6 Optional Local Alarm Outputs

High Contrast Display with Backlight

IP66 Front Panel

The BA688CF-P Fieldbus Display is a general purpose instrument that can display up to eight fieldbus process variables. Eleven selectable standard screen formats contain one, two, three, four or eight variables, with units of measurement, tag descriptions and bargraphs on some screens.

Powered by the fieldbus the BA688CF-P only requires a 2-wire connection, no additional power supply is required. The high contrast 86 x 45mm liquid crystal display incorporates a green backlight that is also powered from the fieldbus enabling the display to be read in all lighting conditions from full sunlight to total darkness.

Simple commissioning results from the use of standard display formats. Apart from loading the BA688CF-P configuration files onto the system host and selecting the fieldbus variables to be displayed, no programming is required. Configuration of the BA688CF-P Fieldbus Display is performed via the fieldbus and the instrument front panel push buttons; simple menus enable the required standard display format to be selected and the units of measurement and tag information for each variable to be entered.

Six optional local alarm outputs may be linked to any of the displayed variables. Each isolated single pole solid state output may be conditioned as a combined high and low alarm, or as just a high or low alarm. Each output can switch any low power load such as a sounder, lamp or solenoid valve. Alarm configuration and the alarm set point adjustment is performed via the BA688CF-P front panel push buttons, as the local alarms are not accessible from the fieldbus system host.

BA688CF-P applications vary from a simple single variable display using a standard format, to providing an operator interface with a custom display and control inputs via external buttons.

The six push buttons on the front of the instrument may be used for returning operator acknowledgments or controls to the fieldbus host. If larger industrial switches are required for these operator controls, up to six external push buttons may be connected to the BA688CF-P. When the external switches are activated, the front panel push buttons may be disabled or operated in parallel with the external switches.

Comprehensive documentation includes a PROFIBUS Interface Guide.

For field mounting applications see the BA684DF-P datasheet. This instrument has a similar electrical specification but is housed in a robust IP66 GRP enclosure suitable for external mounting.

If flammable atmospheres are present, the intrinsically safe BA488CF-P fieldbus display should be used.

Display
Type 120 x 64 pixel liquid crystal; Size 86.5mm x 45mm; Backlight Powered from fieldbus

Screens
Standard format 1, 2, 3, 4 or 8 variables plus bargraph can include: units of measurement, tag information

Controls
Front panel: Six push buttons scroll the indicator display between screens when the BA688CF-P is configured to display more variables than fit onto a single screen. Also used to configure optional local alarms and may be used to return operator inputs to the system host.

External switches
Control may be transferred to six external switches; front panel buttons may be inhibited or operated in parallel. Switch cable 5m max length.

Fieldbus communication
Voltage 9 to 32V ; Current 25mA ; Compliant with IEC61158-2 Clauses 11 and 22

Protocol
PROFIBUS PA

Function blocks
PROFIBUS PA 8 x AO (Analogue Output)
6 x DI (digitl Input)

Please specify if Alarms or Tag Strip are required when ordering

 

Dimensions Drawing

 

Wiring Diagram