2-3
Section
Memory Tables
77
3. In case multiple messages are displayed, pressing another message will
cause the newly pressed one to be displayed in reverse video, and the cor-
responding image/library data will be displayed.
Image/library data corresponding to the second alarm message
PROCESS 3 STOPPED
WATER TANK OVERHEATING
It is also possible to set
correspondence between bit memory
tables and screen numbers. Here, if
the second alarm message is
pressed again, the corresponding
screen will be displayed.
Check the thermostat!
URGENT
4. When a message displayed in reverse video is pressed again, the display
will switch to the screen with the set screen number.
Reference:
S
In the case described above, both image/library display and screen change-
over functions are set. The operation when a touch switch is pressed is deter-
mined as follows in accordance with these settings.
Image/library
Screen
Touch switch
Image/library
display
Screen
changeover
First time
Second time
Not set
Not set
No effect
No effect
Not set
Set
Screen changeover
–
Set
Not set
Image/library data display
No effect
Set
Set
Image/library data display
Screen changeover
S
Note that the text will be invisible when the message is pressed, if the color of
message display (color of bit memory table) and the background color in re-
verse video of alarm list/history are the same.
The number of bit memory tables can be set as one of the following at the Sup-
port Tool.
•
256 (bit memory table numbers 0 to 255)
•
1000 (bit memory table numbers 0 to 999)
Since the bit memory tables share memory area with the screen data, setting a
large number of bit memory tables reduces the memory area available for
screen data.
Bit memory tables have the following common properties.
Property
Possible Settings
Property
Meaning
Function
None/Switch screen/Alarm
Function of the bit memory table
When None is set, nothing will happen even if the host bit to which the
table is allocated comes ON.
Description
Indicates the settings particular to each function.
PC
Address
Any bit address at the host
Address
Host bit to which the bit memory table is allocated
I/O
Comment
Up to 16 characters of text
Comment
Comment that describes the contents of a bit memory table
Restrictions
Common Attributes
electronic components distributor
Summary of Contents for NT21 Series
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