ROC800-Series Instruction Manual
1-18
General Information
Revised July-2017
The ROC800 periodically performs the following self-tests:
▪
Voltage tests (battery low and battery high) ensure the ROC800 has
enough power to run. The ROC800 operates with 12 Volts dc
(nominal) power provided through a PM-12, PM-24, or PM-30
power input module (see
Figures 3-1, 3-2,
or
3-3
). The LED at the
top of each module lights when you apply input power with the
proper polarity and startup voltage. For the
PM-12
module, apply
9.00 to 11.25 volts DC to the BAT+/BAT- connectors; for the
PM-
24
module, apply 20 to 30 volts DC to the POWER INPUT
+/POWER INPUT – connectors; and for the
PM-30
module, apply
10.5 to 30.0 volts DC to the POWER INPUT +/POWER INPUT –
connectors.
▪
The CPU controls the software “watchdog.” This watchdog checks
the software for validity every 2.7 seconds. If necessary, the
processor automatically resets.
▪
The ROC800 monitors Multi-Variable Sensor(s), if applicable, for
accurate and continuous operation.
▪
A memory validity self-test is performed to ensure the integrity of
memory.
1.5.6 Low Power Modes
The ROC800 uses low power operation under predetermined conditions
and supports two low power modes, Standby and Sleep.
▪
Standby
The ROC800 uses this mode during periods of inactivity. When the
operating system cannot find a task to run, the ROC800 enters
Standby mode. This mode keeps all peripherals running and is
transparent to the user. The ROC800 wakes from Standby mode
when it needs to perform a task.
▪
Sleep
The ROC800 uses this mode if it detects a low battery voltage. The
System AI Battery Point Number 1 measures the battery voltage and
compares it to the LoLo Alarm limit associated with this point. (The
default value for the LoLo Alarm limit is 10.6 Volts dc.) When in
Sleep mode, AUX
sw
is turned off. For information on configuring
alarms and System AI points, refer to the
ROCLINK 800
Configuration Software User Manual (for ROC800-Series)
(part
D301250X012) or the
ROCLINK 800 Configuration Software User
Manual (for ROC800L)
(part D301246X012).
Notes
:
▪
Sleep mode applies
only
to ROC800s using the 12 V dc Power
Input module (PM-12).
