Emerson FB2200 Flow Computer Instruction Manual
D301784X012
March 2019
Installation 33
Important
If you increase the number of history points/averages beyond any of the maximum limits in Table 2-
4, the flow computer cannot operate in low power mode and automatically runs in standard power
mode.
Standard Power Mode
When serial communication is active (other than to a remote 4088B MVT) the FB2200 operates in
standard power mode. The unit also uses standard power mode when:
▪ The HMI module display is ON
▪ Wi-Fi is active
▪ Ethernet port is enabled in the flow computer
▪ Modbus Master communication is active
▪ PID, Math/logic Blocks, Action Blocks, and Effect Blocks are enabled
▪ Power control zone is enabled
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