Automatic Self Tests; Low Power Mode; Flow Measurements - Emerson FloBoss 107 Instruction Manual

1.6.3 Automatic Self Tests

1.6.4 Low Power Mode

1.7

Flow Measurements

Issued Feb-07
System AI
Point Number Function
E1 Logic voltage
E2 Battery voltage
E3 Charge in voltage
E4 System milliAmps
E5 Board temperature
For information on configuring alarms and System AI points, refer to
Chapter 7 in the ROCLINK 800 Configuration Software User Manual
(for FloBoss 107) (Form A6217).
The FB107 becomes active when input power with the proper polarity
and startup voltage (typically set greater than 8.0 volts) is applied to the
PWR+ / PWR − connector (provided the power input fusing/protection
is operational). The battery and logical voltage tests ensure that the
FB107 is operating in the optimum mode.
The software arms the watchdog timer every scan period. If the timer is
not armed in 6 seconds, the software automatically resets.
Under pre-defined conditions, the FB107 uses a sleep mode to conserve
power.
During sleep mode, the CPU powers down, although I/O continues to
accumulate. The FB107 enters sleep mode after one minute of inactivity
on the communication ports. You can disable sleep mode, which
ensures that the FB107 stays awake all the time. You configure this
option (which is Disabled by default) on the Sleep Mode field on the
CPU module's Advanced tab.
The FB107 wakes from sleep mode occurs when it receives either a:
Timed interrupt from the real-time clock.
Signal from one of the communication ports.
Gas and liquid calculation methods include:
AGA and API Chapter 21 compliant for AGA linear and differential
meter types.
AGA3 – Differential for gas.
General Information
Table 1-1. System Analog Inputs
Point of
Origination
CPU
Backplane voltage
input connector P1
CPU power input
CPU power input
CPU
FloBoss 107 Instruction Manual
Normal Range
3.0 to 3.6
11.25 to 16 Volts dc
8 to 30 Volts dc
0 to 18 Volts dc
8 to 30 Volts dc
–40 to 85°C (–40 to 185°F)
1-21