Honeywell 7800 Series Product Data page 6

7800 SERIES S7800B DISPLAY MODULE
the sequence status information. It also replaces a selectable
message after 60 seconds if it or a lockout message is
available. The 7800 SERIES Relay Module LEDs provide
positive visual indication of the Relay Module sequence. The
LEDs are energized simultaneously with the correct sequence
description.
DI = DIAGNOSTICS
H1 = HISTORY
EA = EXPANDED
ANNUNCIATOR
SEQUENCE
STATUS
SELECTABLE
MESSAGE OR
PRE-EMPTIVE
MESSAGE
M11110
Fig. 6. S7800B Display Module.
Keyboard Functions
The keyboard contains six pushbuttons that each have
separate functions (SCROLL-Down, SCROLL-Up, MODE,
CHANGE-LEVEL, SAVE and BACKLIGHT).
1. SCROLL Down-Up pushbuttons (
Fig. 7. ( ) SCROLL pushbutton function.
The SCROLL Down-Up pushbuttons (
through the selectable messages. The up ( ) and down ( )
arrows, which are located on the right side of the display,
represent the SCROLL Down-Up pushbuttons. The SCROLL
Down-Up pushbuttons ( ) can be pressed to display the
selectable messages one at a time or held down to scroll
through the selectable messages at a rate of two per second.
When the last item of the selectable message is viewed, the
display wraps around and displays the first selectable
message again.
65-0219—1
FOUR COLOR-CODED LEAD WIRES
FOR COMMUNICATIONS
AND POWER
), see Fig. 7.
) are used to scroll
2. CHANGE-LEVEL pushbutton (
Fig. 8. ( ) CHANGE-LEVEL pushbutton function.
The CHANGE-LEVEL pushbutton is used to change between
the first hierarchy of selectable messages to a subset of
selectable messages. The CHANGE-LEVEL pushbutton can
also be used to change from a subset message to a first level
selectable message. The symbol ( ) located on the right side
of the LCD represents a first level hierarchy of selectable
messages. The symbol ( ) located on the right side of the
LCD represents a subset of selectable messages.
3. MODE pushbutton, see Fig. 9.
Fig. 9. MODE and BACKLIGHT
Use the MODE
switch the display from a second-line-selectable message to a
second-line-pre-empted message. The sixty-second timeout
function can also be used for this task. The MODE
pushbutton works only if there is a second-line-pre-empted
message or lockout message.
6
), see Fig. 8.
pushbutton
functions.
pushbutton to instantaneously