Emerson Process Management ControlWave XFC - Manual (Page 11)

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CI-ControlWave XFC
ControlWave XFC
Model 3820-EX - Explosion Proof Gas Flow Computer
TABLE OF CONTENTS
SECTION TITLE
PAGE #
Section 1 - ControlWave XFC INTRODUCTION
1.1
GENERAL DESCRIPTION ........................................................................................... 1-1
1.2 ControlWave PROGRAMMING ENVIRONMENT .................................................... 1-3
1.3 PHYSICAL DESCRIPTION........................................................................................... 1-5
1.3.1 Housing ........................................................................................................................... 1-5
1.3.2
ControlWave XFC Function Module.............................................................................. 1-6
1.3.3 CPU Board Assembly .....................................................................................................1-6
1.3.3.1 CPU Board Connector P2...............................................................................................1-8
1.3.3.2 CPU Memory................................................................................................................... 1-9
1.3.3.3 CPU Board Battery Enable Configuration Jumper...................................................... 1-9
1.3.3.4 CPU Board LEDs............................................................................................................ 1-9
1.3.3.5 CPU Board General Purpose Configuration Switche SW1 .......................................... 1-9
1.3.4 I/O Board Assembly...................................................................................................... 1-10
1.3.4.1 I/O Board Connectors ................................................................................................... 1-10
1.3.5 Terminal Plate .............................................................................................................. 1-11
1.3.5.1 Field I/O Wiring ............................................................................................................ 1-11
1.3.5.1.1 Non-isolated Analog I/O ............................................................................................... 1-11
1.3.5.1.2 Non-isolated Digital I/O ............................................................................................... 1-12
1.3.5.1.3 Non-isolated High Speed Counter Inputs ................................................................... 1-12
1.3.5.1.4 Optional RTD Input Probe ........................................................................................... 1-13
1.3.5.2 Terminal Plate Input Power Connections................................................................... 1-13
1.3.5.3 Terminal Plate Communication Port Connections..................................................... 1-13
1.3.6 Multivariable or Gage Pressure Transducer............................................................... 1-13
1.3.7 RTD Probe..................................................................................................................... 1-13
1.4 FIELD WIRING............................................................................................................1-13
1.5 FUNCTIONS................................................................................................................. 1-14
1.5.1 Data Acquisition ........................................................................................................... 1-14
1.5.2 Flow and Volume Calculations .................................................................................... 1-15
1.5.2.1 Flow Rate and Flow Time Calculations (AGA3) ......................................................... 1-15
1.5.2.2 Flow Rate Calculations and Flow Time Accumulations (AGA7) ............................... 1-15
1.5.2.3 Extension Calculation and Analog Averaging ............................................................ 1-15
1.5.2.3.1 Energy Calculation ....................................................................................................... 1-16
1.5.2.3.2 Volume and Energy Integration .................................................................................. 1-16
1.5.2.4 Downstream Pressure Tap........................................................................................... 1-16
1.5.3 Archives......................................................................................................................... 1-16
1.5.3.1
Hourly Historical Data Log.......................................................................................... 1-16
1.5.3.2 Daily Historical Data Log ............................................................................................ 1-17
1.5.3.3 Periodic Historical Data Log........................................................................................ 1-17
1.5.3.4 Alarm and Event Storage............................................................................................. 1-17
1.5.4 LCD Display.................................................................................................................. 1-18
1.5.5 Communications ...........................................................................................................1-18
1.5.5.1
BSAP Message Support................................................................................................ 1-19
1.5.6 Discrete and Analog I/O XFC Functionality ............................................................... 1-19
1.5.6.1 Flow Rate Control - DDC (jog control) using PID....................................................... 1-19
1.5.6.2 Pulse Output for External Totalizer or Sampler ........................................................ 1-19
1.5.6.3 Nominations.................................................................................................................. 1-20
1.5.7
Self Test & Diagnostics ................................................................................................ 1-20