Power Modes; Low Power Mode - Emerson FB1100 Instruction Manual

Emerson FB1100 Flow Computer Instruction Manual
D301752X012
August 2020
Figure 2-19: Terminal Plate
2.10

Power Modes

To keep power consumption to a minimum, especially for remote sites, the flow computer can run
in two different power modes: Low Power Mode (4 or 8 MHz CPU clock speed) or Standard Power
Mode (60 MHz CPU clock speed).
2.10.1

Low Power Mode

The flow computer normally runs in low power mode for typical metering applications. The radio
Power Control function (configurable in FBxConnect) switches the flow computer into standard
power mode at specified times when serial communications are required, then it reverts to low
power mode when the communication period is over.
The local display (HMI module) with FBxWifi communications and FBxWifi uses additional power.
You can configure it in FBxConnect to shut down after a period of inactivity.
26 Installation