Emerson FB1200 - Communications; Human-Machine Interface (HMI) Module

Emerson FB1200 Flow Computer Instruction Manual
D301782X012
March 2019
8 Introduction
Lead Acid Battery Pack
▪
6.0 Vdc
▪
4.5Ah
▪
Not suitable with ATEX or IECEx applications
▪
Can be optionally charged by a 6-watt solar panel
1.8 Communications
The flow computer includes three serial communication ports and one Ethernet port. The serial
ports allow communication using DNP3, Modbus, BSAP, and ROC protocols. The Ethernet port is an
RJ-45 connector. The Ethernet port supports a maximum of six concurrent TCP connections
(sockets).
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.
1.9 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.