Chapter 6 The keyboard, display and indicators
Page 6.3
MAIN MENU Moves you straight to page 1 of the top-level menu.
INFORMATION
MENU
Takes you to a special menu providing information on alarms, events,
flow status and 795x operating mode.
PRINT MENU Takes you to a special menu dealing with data archiving and printing
of reports.
MULTI-VIEW You can define one or more display pages, each showing up to four
items of data, lines of descriptive text, or both. Pressing MULTI-
VIEW shows the first display page you have defined. Use the
up/down arrow buttons to page up and page down.
F1 The use of this button is dependent on the functionality of the
application software. If this button is in use, it will be mentioned in
later chapters.
Note: All other buttons have no effect when moving around the menus.
6.6 Using the buttons to view stored data
When a software parameter screen is viewed, after selection from the menu, the display is in VIEW mode.
Figure 6.2 shows a typical display when you view a software parameter screen. In VIEW mode, all information is
in a right justified format.
Figure 6.2: A typical software parameter screen (in VIEW mode)
What the display shows
Line 1: Shows the parameter description. (Some words are abbreviated.)
Line 2: Shows the present value (or text for indirection type).
Line 3: Shows the measurement units (if any). This line is blank if there are no units.
Line 4: The right-hand side shows LIVE, SET, FB (FALLBACK) or FAIL to indicate the state of the
present value shown in Line 2, where appropriate. These indications mean:
LIVE – The data shown is live data received from the transducer/transmitter connected to
the 795x or calculated by the 7858 rather than a set value.
SET – There is a fixed value for the data; this value does not change unless you enter a
new fixed value or make it live.
FB – A fallback or default value has been used to obtain the value for the data.
FAIL – The live input has failed, most likely due to no transducer/transmitter being
connected or a calculation failed to complete due to incorrect configuration.
An alarm will be raised causing the Input Alarm LED to flash on the front panel. For
troubleshooting this alarm, see chapter 8.
Optionally, Line 4 may also show the parameter’s unique identification number (location ID), which is required when setting
up certain features e.g. Multi-view. You can toggle this information on/off by the ‘a’ button.