26
Programming
The alarm annunciator unit is a very flexible
device but at the same time easy to use.
The programming work is carried out easily by
means of the programming push-buttons on the
front panel or via the serial communication
using e.g. the SMS 010 setting and monitoring
software. The parameter values are stored in a
non-volatile EEPROM memory which means
that the parameter programming is a very straight
forward action and that the information con-
tent of the memory is maintained even in a loss
of supply situation.
The parameter values can be and are usually
finally defined after that the annunciator unit
has been mounted at site during the commis-
sioning work.
By means of a plug selector located on the PCB
just behind the front panel the switching over of
the annunciator unit into the programming
mode can be prohibited. In this way the pro-
gram memory of the annunciator unit can be
protected against unauthorized access.
Programming
technique
The annunciator unit is programmed by means
of the five push-buttons and the four digit display
on the front panel. The push-buttons are accessi-
ble after that the plastic lid has been opened.
Fig. 29. Front view of the annunciator unit.
FAULT
ON
SACO 16D1
Four-digit seven-segment display
Enter command push-button
Parameter pointer indicators
Parameter selector push-button
Data value selector push-button
Display cursor control push-button
Channel selector push-button
