Emerson FB2100 Flow Computer Instruction Manual
D301783X012
March 2019
Introduction
5
1.3.2
FB2100 Flow Computer
–
No Integral Sensor
The no integral sensor version includes no sensor module. In this case the process variable data
used in flow computer calculations comes from external devices and enters the device through the
serial ports or I/O channels.
Figure 1-3. FB2100 Flow Computer
–
No Integral Sensor Version
1.4
Central Processing Unit (CPU)
The flow computer’s CPU is a
NXP
®
Kinetis
®
K61 series CPU with an ARM
®
Cortex
®
M4 processor
that operates at 4 to 60 MHz depending on the power mode. The CPU runs the Micrium operating
system.
1.4.1
Memory
The flow computer includes both static and flash memory.
Table 1-1. Memory
Memory
Usage
8 MB SRAM
Holds current states of all variables and historical archives
128 MB Flash
Holds firmware image and configuration files
