DISP2
Rel.: 2.0 - September 2004 - Page 2
INDEX
1- INTRODUCTION.............................................................................................................................................................2
2- DISP2: GENERAL CHARACTERISTICS ........................................................................................................................2
3- CONNECTIONS..............................................................................................................................................................3
3.1- Electrical insulation of the inputs..............................................................................................................................5
4- OUTLINE DIMENSION....................................................................................................................................................5
5- TECHNICAL DATA..........................................................................................................................................................6
6- OPERATING OPTIONS ..................................................................................................................................................6
7- OPERATION ...................................................................................................................................................................8
7.1- Pushbuttons function and keyboard lock..................................................................................................................8
7.2- Centralized alarm outputs and “first out” ..................................................................................................................9
7.3- Messages displaying in MEM or NOMEM modes ....................................................................................................9
7.4- Reset of the queue...................................................................................................................................................9
8- PROGRAMMING...........................................................................................................................................................10
8.1- Manual programming by the panel buttons ............................................................................................................10
8.2- Programming by Personal Computer.....................................................................................................................11
1- INTRODUCTION
The displays of DISP2 family by DUEMMEGI are devices allowing to report, in a customized way, messages for
controlling purpose in many applications, such as industrial and domestic plants. Thanks to the flexibility of these
devices, the displays of DISP2 family make easy to understand any information related to the occurrence of alarms or
events. These devices may be employed in several applications as in the following examples:
Machinery Building automation
Industrial processing Home automation
Plants Alarm signaling
DISP2 replaces the old family of messages display made by the models DISP16D, DISP15B, DISP31B, DISP63B,
DISP127B and DISP255B. This because DISP2 device may be set by the user for operation with direct inputs (up to 16
messages) or for operation with binary code input (up to 255 messages). Moreover, in respect to the previous family,
DISP2 performs several features as listed in the following paragraph.
2- DISP2: GENERAL CHARACTERISTICS
¾LCD display 2 x 16 characters with back-lighting ¾1 alarm pending message made by 2 lines
¾LCD contrast may be adjusted by the button on the
front panel
¾Cyclic displaying of more messages; the cycle time
may be set by user in the range 1 to 10 seconds
¾Message programming by front panel pushbuttons or
by PC
¾Events storing (MEM) or current status display
(NOMEM)
¾Messages and parameters stored into DISP2 memory
may be read by a PC
¾Events are displayed in chronological order (up to 64);
information about the total amount of pending alarms
¾The inputs may be insulated by internal photo-
couplers
¾Internal buzzer for alarm acoustic signaling; the
buzzer operation may be disabled
¾16 messages direct mode or 255 messages binary
mode
¾2 potential free contacts (internal relays) for additional
acoustic/visual signaling (siren and flasher)
¾In direct mode each input may be set for NO or NC
operation
¾2 inputs for remote ACK and RESET commands
¾Up to 255 messages, each one made by 2 main lines
and 2 hidden lines
¾1 base message made by 2 lines (stand-by message)
¾Keyboard lock to avoid unwanted operations by
unauthorized personnel
The firmware of DISP2 device may be updated directly by the user through a PC and the RS232 communication port;
this feature allows future developments of the product concerning new functions and possible special versions. For more
details about this feature, contact DUEMMEGI commercial office.
