Logger – ADS Environmental Services Spider QR 775010 A0 User Manual
Page 19

ADS Environmental Services ADS Spider User Manual
Page 17
Refer to Acknowledging Alarms on page 60 for more information.
If an alarm is acknowledged, but its trigger source is still in the active
state, a new alarm sequence will NOT commence. Instead, the
Spider first will wait for the trigger source to go inactive.
Logger
The Spider incorporates a high capacity solid-state data logger. The
logger stores data into non-volatile memory, maintaining its contents
in the event of a total power supply failure. All records are date/time-
stamped to a resolution of one second.
The Spider logs the following:
1. Input changes
2. System monitor changes
3. Control changes
4. Alarm activations and resets
5. Text message transmissions and their outcomes
6. Text message command reception
7. E-mail transmissions and their outcomes (when the e-mail
option is installed)
8. Voice alarm transmissions and their outcomes (when the
voice option is installed)
9. System messages
Switch inputs automatically log an input change. If a switch input is
initially in the
“
OFF
”
state, goes
“
ON
”
for some time, and then goes
back
“
OFF
”
, both state changes are logged.
Event and Daily Total inputs automatically log a single record per
pulse. If an event input is initially in the
“
OFF
”
state, then goes
“
ON
”
for some time, and then goes back
“
OFF
”
, only a single record is
logged.
Analog input, counter input, and system monitor logging are enabled
by the user.
These inputs are logged using the
“
SIGNIFICANT CHANGE
”
logging
method. The user specifies the minimum logging period and the