Specification Sheet

7800 SERIESS7800A2142 4Line LCD Keyboard Display Module
320011007 34
MOST
SIGNIFICANT
BYTE
LEAST
SIGNIFICANT
BYTE
A Little-Endian setting is used when the Modbus response provides the 32-bit data in the
following order:
MOST
SIGNIFICANT
BYTE
LEAST
SIGNIFICANT
BYTE
Default setting is Big-Endian, but the current setting is displayed when the page is initially
entered.
The up and down arrow buttons are used to scroll between the two options on the edit
line. The right and left arrow buttons are used to tab to the save commands, “Yes” and
“No”. When the input focus is on the save commands the up and down arrow buttons
scroll between “Yes” and “No”. When the order choice is set to the value desired the “Yes”
command is selected and the OK button is pressed to commit the change. If the user
decides not to save the displayed order setting, the “No” command is selected and the OK
button is pressed. In both save command cases control returns back to the Modbus setup
menu.
Annunciator Setup
Annunciator setup is accessed from the Display Menu (see Fig. 46). This setup permits
the customization of the annunciator interface to match with the system usage of the
annunciator. Two selections are possible from this menu:
• Terminal assignment
• Custom messages
Fig. 46. Annunciator setup
Terminal assignment allows the user to name the annunciator terminals to match with
their system interlock purpose. These assignments can be edited by selecting the “Terminal
assignment” line and pressing the right arrow or OK button (see Fig. 47). Each terminal,
4-22, can be named from one of the messages in Table 7. When the page is initially
displayed the current terminal assignments are displayed.
TERMINAL
SELEC
TION
LINE
C
OMMAND
LINE
NAME
SELEC
TION
LINE
Fig. 47. Annunciator terminal assignment setup
Note that terminal 19 has two different names, one for gas and one for oil. The page
displays next to the terminal number which one is referenced (see Fig. 48).
GAS
OR
OIL