Emerson FB2100, Инструкция по эксплуатации

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Emerson FB2100 Flow Computer Instruction Manual
D301783X012
March 2019
Introduction 7
1.7 Communications
The flow computer includes three serial communication ports. The serial ports allow
communication using DNP3, Modbus, BSAP, and ROC protocols.
Table 1-4. Serial Ports
Port Type Use
COM1
▪ Serial communications
▪
Software-selectable for RS-232,
RS-422, or RS-485 operation
▪ 4-wire
RS-232, RS-422, or RS-485 communication to
host or other devices. 4-wire used with external
radio.
COM2
▪ Serial communications
▪ Software-selectable for RS-232, or
RS-485 operation
▪ 2-wire
RS-232 or RS-485 communication to host or
other devices.
COM3
▪ Serial communications
▪ Software-selectable for RS-232, or
RS-485 operation
▪
2-wire
RS-232 or RS-485 communication to host or
other devices.
1.8 Human-Machine Interface (HMI) Module
The flow computer includes an HMI module with an optional liquid crystal display (LCD) for local
operator access to the device. The LCD, if present, presents a series of menus that sequentially
display the current values of particular process variables. A configuration parameter in FBxConnect
determines whether you must log in first to view the menus. If required, you log in by selecting
alphanumeric characters by scrolling through a list until you select the correct character.
The HMI module includes four LEDs to provide status information. Units with the display include
four infrared (IR) buttons for operator interaction.
To conserve power the HMI module enters sleep mode after a period of inactivity. Sleep mode
disables Wi-Fi communication. In FBxConnect, you can configure the number of minutes of
inactivity triggering sleep mode through the LCD Sleep Time parameter. Setting this parameter to
0 disables sleep mode which keeps the HMI module on but uses significantly more power.