APC UPS control system manual Apcupsd Notification and Events, Lotransfer

ted values that can be set in the EPROM. For information about chang- ing these values, see the section on tuning EEPROM parameters (see Configuring Your EEPROM).

A typical output from apcaccess eprom is:

Valid EPROM	values for the SMART-UPS 1000
	Config	Current	Permitted
Description	Directive	Value	Values

===================================================================

Upper transfer	voltage	HITRANSFER	253	253	264	271	280
Lower transfer	voltage	LOTRANSFER	208	196	188	208	204
Return threshold		RETURNCHARGE	15	00 15 50 90
Output voltage	on batts	OUTPUTVOLTS	230	230	240	220	225
Sensitivity		SENSITIVITY	H	H M	L L
Low battery warning		LOWBATT	2	02 05 07 10
Shutdown grace	delay	SLEEP	180	020	180	300	600
Alarm delay		BEEPSTATE	T	0 T	L N
Wakeup delay		WAKEUP	60	000	060	180	300
Self test interval		SELFTEST	336	336	168	ON	OFF

Apcupsd Notification and Events

When a major event is generated within apcupsd, control is passed to the script apccontrol normally found in /etc/apcupsd/apccontrol. The event name, and a number of other important parameters are passed to the script.

The major function of the apccontrol script is to performa a shutdown of the system (as well as the killpower operation). In addition, another major task for this script is to notify you by email when certain events such as powerfail occur.

Since apccontrol is a script, you can customize it to your own needs using any text editor. To do so, you must have a minimal knowledge of Unix shell programming. In addition, another feature is that you can write your own scripts that will be automatically called by apccontrol before any of its own code is executed. Details of the events and how to program them are contained in the Advanced topics section entitled Customizing Event Handling (see Customizing Event Handling).

75