Emerson FB1100 - Central Processing Unit (CPU); Memory

FB1100 Flow Computer Instruction Manual
D301752X012
November 2023
4 Introduction
 Integral multi-variable sensor for measurement of Pressure (P) and Differential
Pressure (DP)
 Connections for customer-supplied resistance temperature detector (RTD) for
measurement of temperature (T)
 Single digital output
 Power from a DC power supply, a lithium battery, or an optional lead acid
battery/solar panel combination
 Serial communication options for RS-232, RS-485 (2-wire), RS-485 (4-wire)
 HMI module with optional display and back light for local operator interaction
 Optional Wi-Fi
®
transceiver (802.11 b/g) for field technician to access the flow
computer from a laptop without physical cable connection
 Application software supports AGA3, AGA8, ISO 5167, ISO 6976, and API 21.1
calculations in U.S., metric, or other natural gas standard units
 Support for one-year autonomous measurement without external power (lithium
battery option)
Central Processing Unit (CPU)
The flow computer’s CPU is an 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.
1.3.1 Memory
The flow computer includes both static and flash memory.
Table 1-1. Memory Usage
Memory
Usage
8 MB SRAM
Holds in-use configuration, current state of all variables
128 MB Flash
Holds firmware image, historical logs, configuration
backup (if saved to flash), and the executing program