STEAM/WATER THERMODYNAMICS
Contents
1. number Flow Input 0 Volume 1 Mass 2 Orif flange 6 Orif DD2 10 Orif Corner 14 Nozzle 18 Vent Mach 22 Vent RW Units Option O U S 1 Metric Phase 0 Steam 1 Water Pressure Option Bit 0 0 Absolute Bit 02 1 Gauge Bit 120 Upstream Bit 121 Downstrm Atmospheric Pressure Option 0 Calculate 1 Enter Alarming Mode Bit 6 SRBXonSet Bit 5 SRBXonClear Bit4 ALMEnable Alarm Code Bit 6 NoFlowAlarm Bit 2 HighAlarm Bit 0 LowAlarm 23 Steam Program User Manual PARAM READ VALID RANGE DATA LENGTH NUMBER WRITE TYPE 0 0 0 or 3 x 14 or 5 13 or 5 x 17 or 16 x 2 11 or 17 x 2 21 or 31 x 11 or 31 x 15 or 31 x 17 or 31 x 19 where x is a valid point number for the given point type Valid IEEE Floating Point Number 0 0 0 or 3 x 14 or 16 x 2 11 or 17 x 2 21 or 31 x 11 or 31 x 15 or 31 x 17 or 31 x 19 where x is a valid point number for the given point type Valid IEEE Number 0 0 0 or 3 x 14 or 16 x 2 11 or 17 x 2 21 or 31 x 11 or 31 x 15 or 31 x 17 or 31 x 19 where x is a valid point number for the given point type Actual Meter Value ACFH or ACMH for Linear Meters In Water at 68F or kPa for Differential press DEFAULT DESCRIPTION VALUE UNITS FOR STEAM Steam Properties Recalculation Flag 1 Recalc Actual Meter Input Point Volume Rate Corrected Mass rate or Differential pressure Pressure Input Point NE Value PSI or kPa INE Input P2. tonnes hr Rev 9 01 25 Steam Program User Manual PARAM READ VALID RANGE DATA LENGTH DEFAULT DESCRIPTION NUMBER WRITE TYPE VALUE UNITS FOR STEAM 31 R O Valid IEEE Floating FLP 4 Mass Flow Rate Point Number Day MLbm day or tonnes day 32 R O Valid IEEE Floating FLP 4 Energy Flow Rate Point Number Hour MMBTU hr or MJ hour 33 R O Valid IEEE Floating FLP 4 Energy Flow Rate Point Number Day MMBTU day or MJ day 34 R O Valid IEEE Floating FLP 4 Mass Flow Today Point Number MLbm or tonnes 35 R O Valid IEEE Floating FLP 4 Mass Flow Yesterday Point Number MLbm or tonnes R O Valid IEEE Floating Energy Flow Today Point Number MMBTU or MJ Valid IEEE Floating Point Number Energy Flow Yesterday MMBTU or MJ Mass Flow This Month MLbm or tonnes Valid IEEE Floating Point Number Valid IEEE Floating Point Number Mass Flow Last Month MLbm or tonnes pm LIT LIT LT FP R O Valid IEEE Floating FLP 4 Energy Flow This Point Number Month MMBTU or MJ R O Valid IEEE Floating FLP 4 Energy Flow Last Point Number Month MMBTU or MJ Valid IEEE Floating Coefficient of Point Number discharge Valid IEEE Floating Viscosity cP Point Number Valid IEEE Floating Point Number Isentropic exponent Valid IEEE Floating Expansion factor Point Number 26 Rev 9 01 Steam Program User Manual Rev 9 01 27 Steam Program User Manual If you have comments or questions r
3. 1997 Steam Program User Manual 1 4 SPECIFICATIONS Many of the details of the Steam Program are summarized in the table below Specifications MAXIMUM METER RUNS e Manual entered value used in automatic override ROC306 ROC312 3 runs ROC364 5 runs ROC407 4 runs COMMON FLOW PARAMETERS Tag ID 10 character description Meter Run ID 30 character description of meter run Calculation Method International Association for the Properties of Water and Steam International Formulation 1997 IAPWS IFC 97 Uses either US or metric units Measurement Range Pressure range is 0 1 2395 PSIA temperature range is 32 662 F Meter Configuration Live reading or manual value e Volumetric measurement from pulse scaled analog or Hart input Differential pressure from analog or Hart input Pressure from analog or Hart input Temperature from analog or Hart input Mass flow optional from analog or Hart input Steam Quality Live reading or manual value e Live reading may be from analog or Hart input when temp pressure is above or below the saturated steam region of the ASME Steam Table CALCULATION OUTPUT Enthalpy BTU Ibm kJ kg Enthalpy Flow Rate Energy Instantaneous Flow Flow per hour Flow per day Energy Today Energy Yesterday Energy This Month Energy Last Month Measured in MMBTU for steam or in MBTU for water Mass Flow Rate Instantaneous per hour per day Mass Today Mass Yes
4. 88 a3f f f a48088 a7f f f a8888 abf f f acO46 af f f f ba8888 b3f f f b4888 b 7f f f bcA88 bf f f f cO640 c3fff c4B888 c 7f f c8888 c bf f f d6666 d3fff d4660 da ffF More Files Open ROC files Connect ROC On Line COM2 Figure 2 1 Viewing Memory in ROCLINK The memory location must be available for the User Program to be loaded All unallocated available memory blocks display under this field User programs cannot share the same memory block Refer to the h00 files listed in Section 2 2 Program Requirements to determine which blocks of memory are required by the intended user program The other fields on this screen are described below User Program Name and Version Displays the name of the User Program and the version number currently installed Status Displays the run status of the User Program ON or OFF Code Code displays the location of where the program executable file resides in memory Data Data displays the location of where the program data files reside in memory Download When you select Download the Open File Figure 2 2 display appears for selecting the program files to be loaded After you select a user program to install you may press Enter or press Download again to begin loading the user program Press More Files to select additional user programs for installation More Files After selectin
5. Form A6095 April 2002 Part Number D301145X012 STEAM WATER THERMODYNAMICS APPLICATION PROGRAM User Manual Flow Computer Division y EMERSON Website www EmersonProcess com flow Process Management Steam Program User Manual Revision Tracking Sheet April 2002 This manual may be revised periodically to incorporate new or updated information The revision date of each page is indicated at the bottom of the page opposite the page number A significant change in the content of the manual also changes the date that appears on the front cover Listed below is the revision date of each page Page Revision All 9 00 All 9 01 ii 12 17 4 02 Fisher FloBoss and ROCLINK are marks owned by one of the Emerson Process Management companies The Emerson logo is a trademark and service mark of Emerson Electric Co Fisher Controls International Inc 2000 2002 All rights reserved Printed in the U S A While this information is presented in good faith and believed to be accurate Fisher Controls does not guarantee satisfactory results from reliance upon such information Nothing contained herein is to be construed as a warranty or guarantee express or implied regarding the performance merchantability fitness or any other matter with respect to the products nor as a recommendation to use any product or process in conflict with any patent Fisher Controls reserves the right without notice to alter or improve the designs or specificatio
6. On Line C0M2 Figure 3 3 Alarms Definition Low Alarm Limit The limit value default is 0 in engineering units per hour to which the calculated mass flow value must fall to generate a Low Alarm High Alarm Limit The limit value default is 10 000 in engineering units per hour to which the calculated mass flow value must rise to generate a High Alarm RBX Alarming Select the type of RBX automatic call in to host alarming you want for this alarm Disabled On Alarm Set On Alarm Clear or On Alarm Set amp Clear For RBX alarming to function you must also set up the RBX features as described in Section 9 of the ROCLINK user manual Rev 9 01 19 Steam Program User Manual 3 1 3 Totals When you activate the Totals pushbutton in the Steam Calculation Setup screen a dialog box showing mass and energy totals is displayed as shown in Figure 3 4 Note that these values are all for monitoring only they cannot be configured VE ROCLINK EXE Steam Calculation Setup STEAM 1 Totals Open ROC files Connect ROC On Line COM2 Figure 3 4 Totals Display Mass Today The total of mass flow so far in the current day as calculated by this steam point Units are in MLb thousands of pounds for steam and in tons for water When Metric units are selected the unit of measurement is tonnes for both steam and water Mass Yesterday The total of mass flow for the entire previous day as calculated by this s
7. ROC300 Series or in a FloBoss 407 Requirements for the User Program For ROC300 Series units FlashPAC firmware version 2 11 or greater must be installed check by using ROCLINK to look at the Advanced Features of the System Information display under the System menu For FloBoss 407 units firmware version 1 07 or greater must be installed check by using ROCLINK to look at the Advanced Features of the System Information display under the System menu ROCLINK Configuration Software Version 2 2 check by using the About function in the Help menu of ROCLINK Based on the available memory see Section 2 3 Viewing Available Memory or user task requirements select one of the programs listed below B Fb steam h00 Code at memory block B8000 BFFFF Data at memory block 70000 73FFF Runs out of User Task 3 B steam h00 Code at memory block D8000 DFFFF Data at memory block B8000 BBFFF Runs out of User Task 3 2 3 VIEWING AVAILABLE MEMORY User program memory must be available in the intended download area see program requirements above before installing a user program To view the available memory 1 Select Utilities from the ROCLINK menu bar 2 Select User Programs When you select User Programs a screen appears that shows the unused memory blocks available for the Steam Program to be loaded Refer to Figure 2 1 8 Rev 9 01 Steam Program User Manual VE ROCLINK EXE 48000 b8 666 dffff bbfff aBBa
8. am Quality in Section 3 1 1 Mass Flow Rate This parameter is a monitor only field that displays the current calculated mass flow rate for this steam point The value is recalculated once every second 14 Rev 9 01 Steam Program User Manual Energy Flow Rate This parameter is a monitor only field that displays the current calculated energy flow rate for this steam point The value is recalculated once every second Density This parameter is a monitor only field that displays the density of the steam or water as calculated from the measured inputs The value is recalculated every 5 minutes unless there is a significant change in one of the inputs Enthalpy This parameter is a monitor only field that displays the enthalpy energy content of the steam or water as calculated from the measured inputs The value is recalculated every 5 minutes unless there is a significant change in one of the inputs Alarming Select Enabled to allow alarms to be set up for this point The Alarms pushbutton then becomes available see Section 3 1 2 for further information Static Press Select either Absolute or Gauge depending on the type of instrument being used to provide the pressure input for this point Generally an absolute measurement allows greater accuracy If you select Gauge then be sure also to specify Atmospheric Pressure and Elevation in the fields below Atmospheric Press If you selected Gauge pressure above then s
9. ated pushbutton displays a dialog box that lets you assign the input that senses the temperature of the steam or water If you want to enter a constant value to be used as the input type the value in the Value field to the right of the pushbutton Otherwise this field just indicates the current input value The units assumed for the input are degrees Fahrenheit degrees Celsius if Metric units are enabled Steam Quality The associated pushbutton displays a dialog box that lets you assign the input that indicates the quality of the steam for supersaturated steam If you want to enter a constant value to be used as the input type the value in the Value field to the right of the pushbutton Otherwise this field just indicates the current input value The units assumed for the input are always percent of steam Note that if the pressure and temp erature are in the superheated steam region the Steam Quality will be forced to 100 If the pressure and temperature are in the water region this value will be forced to 0 18 Rev 9 01 Steam Program User Manual 3 1 2 Alarms If you have Alarming enabled for this Steam flow point press the Alarms pushbutton in the Setup screen to display the dialog box shown in Figure 3 3 VE ROCLINK EXE Steam Calculation Setup STEAM 1 Alarms 7 16666 On Alarm Clear On Alarm Set amp Clear CI Disabled lt gt Enabled On Alarm Set 2 Open ROC files Connect ROC
10. bar 2 Select User Programs Refer to Figure 2 1 on page 9 3 Press Download The Open File dialog box appears as shown in Figure 2 2 The Open File display lists the names of all the files that have the HOO extension and are located in the default Drive and Directory Use the Up Arrow and the Down Arrow 4 to select the desired file in the Files list You may change the location being read by using the Directory Drive field Use the Up Arrow and Down Arrow to select the drive containing the user program files such as the D drive 4 When the desired User Program appears in the File Name field click OK The Open File dialog closes returning you to the User Program screen VE ROCLINK EXE Open File TEAM H66 FP STERM H88B Select file to open On Line 2 Figure 2 2 Open File Rev 9 01 11 Steam Program User Manual 5 If you want to load other user programs as well you may press the More File pushbutton to select them using the Open File dialog To begin loading the selected User Program s press Download again When the User Program has been downloaded the following occurs The User Program is automatically turned ON The correct ROC Flag is automatically enabled for the User Program A Warm Start is automatically initiated A record is created in the Event Log if Log Data is enabled in the Config screen The configurable data fields are located under the Us
11. efer to the specifications in Section 1 4 For more information about downloading the program refer to Section 2 For information on configuring the program refer to Section 3 1 2 1 Requirements To use the Steam Program a ROC should have a FlashPAC installed version 2 11 or greater A FloBoss 407 should have firmware version 1 07 or greater To be downloaded the program requires available memory as described in Section 2 ROCLINK Configuration Software for DOS Version 2 23 is required for configuration 2 Rev 9 01 Steam Program User Manual 1 3 ADDITIONAL INFORMATION This document is intended to be used along with the following manuals to assist in downloading and configuration The physical hardware aspects of the ROC FloBoss units are contained in their respective instruction manuals as listed below RL101 ROCLINK Configuration Software User Manual Form A6051 Part Number D301101X012 Type ROC306 312 Remote Operations Controller Instruction Manual Form A4630 Part Number D301059X012 Type ROC364 Remote Operations Controller Instruction Manual Form A4193 Part Number D301060X012 FloBoss 407 Flow Manager Form A6013 Part Number D301080X012 The steam and water properties calculation algorithms are contained in their respective standards as listed below Rev 9 01 ASME International SteamTables for Industrial Use CRTD Vol 58
12. egarding this manual please direct them to your local sales representative or contact Emerson Process Management Flow Computer Division Marshalltown IA 50158 U S A Houston TX 77065 U S A Pickering North Yorkshire UK YO18 7JA Website www EmersonProcess com flow 28 Rev 9 01
13. elect either Calculate or Enter If you select Calculate then also provide the Elevation of the meter location in the next parameter If you select Enter then the field immediately below becomes available for editing otherwise it simply displays the calculated value Type in the estimated average pressure Elevation If you selected Calculate for the Atmospheric Pressure enter the elevation in feet or meters of the meter site in this field The resulting atmospheric pressure is then displayed just below the Atmospheric Press selection and used by the steam point to calculate the Static Pressure in the case of gauge instruments Active Alarms This monitor only field displays any alarms that are active for this steam point Low High or No Flow Inputs Press this pushbutton to define the inputs for this steam flow calculation See Section 3 1 1 for details Alarms If Alarming is Enabled you can press this pushbutton to define the alarms for this steam flow calculation See Section 3 1 2 for details Totals Press this pushbutton to display the flow totals for this steam flow calculation See Section 3 1 3 for details After configuring a point and pressing F8 Save use Write to EEPROM in the ROC Flags display to save the configuration to permanent memory in case you must perform a Cold Start Rev 9 01 15 Steam Program User Manual 3 1 1 Inputs To define the inputs used in this steam flow calculation press
14. er Data menu 6 After downloading the User Program select Flags from the System menu to display the ROC Flags screen similar to the screen displayed in Figure 2 3 File Meter 1 0 Data Display History Utilities System Help ROC Flags 1 of 1 Warm Start No 5 Cold Start Options FST Display Clear No Clear EEPROM 5 Write to EEPROM 5 Write Status Complete LCD User Program Op Port User Program Coml User Program Inactive Inactive Inactive Active Active x Active Active Option 2 Active Option 3 Active Option 2 Active Option 3 ee a et se eet ee Er pum Active Option 3 om User Program alc User Program Inactive Inactive Advanced Features Active Active Active Option 2 Active Option 3 San ee ee ee Active Option 2 Active Option 3 F Update Fo Cancels F8 Save Initialize ROC from database stored in RAM On Line Figure 2 3 ROC Flags Display 7 Set the Write to EEPROM flag to Yes This ensures that when a Cold Start is performed the User Program automatically starts 8 Press F8 Save 9 Press F1 Update 12 Rev 9 01 Steam Program User Manual SECTION 3 CONFIGURING THE STEAM PROGRAM This section details how to configure steam flo
15. ermodynamics Application Program provides energy calculations capability to ROC300 Series models with FlashPAC only and FloBoss 407 units The software computes the corrected mass flow values and archives the data on hourly and daily cycles ROCLINK Configuration Software for DOS is required to configure the calculations ROCLINK also displays all pertinent data including monthly mass and energy totals The inputs to the system are the actual volumetric flow rate provided by a vortex flowmeter or another linear meter the process temperature the process pressure and the steam quality As a second choice a mass flow input corrected can be read directly from another device The data from this input is archived for historical purposes just like an internally calculated mass flow Using this program the flow of water chilled or hot steam saturated or superheated and natural gas orifice or turbine metered may be measured concurrently in a ROC or FloBoss Each flow measure ment takes one of the meter runs available in the unit The hourly and daily averages of the process temperature and pressure plus the mass flow and energy flow rates are available to be archived on an hourly and daily basis The maximum and minimum values for the day are recorded for each variable archived The units of measurement can be configured to be either U S a k a English or Imperial or metric for each steam calculation point For further details r
16. ev 9 00 Steam Program User Manual SECTION 1 INTRODUCTION The Steam Water Thermodynamics Application Program more briefly referred to as the Steam Program is a user program that when running in a ROC or FloBoss performs calculations of mass and energy flow based on either volumetric flow mass flow or differential flow static pressure temperature and steam quality inputs Mass and energy flows are accumulated using daily and monthly totals these values are stored in the ROC or FloBoss for later retrieval 1 1 ORGANIZATION OF MANUAL This manual is organized into the following major sections Section 1 Introduction Section 2 Downloading the Steam Program Section 3 Configuring the Steam Application Appendix Point Type Listing Section 1 Introduction describes this manual and mentions related manuals This section also provides an overview of the Steam Program Section 2 Downloading the User Program describes how to view available memory how to select a user program and how to download the Steam Program to the ROC Section 3 Configuring the Application provides information detailing how to configure the Steam Water Application for a specific installation site Appendix A Point Type Listing provides a breakdown of each parameter value set up in the User Data point type for the steam application Rev 9 01 Steam Program User Manual 1 2 OVERVIEW DESCRIPTION The Steam Water Th
17. g a user program to download using the Open File display you can press the More Files pushbutton to select additional user programs to download if desired Rev 9 01 9 Steam Program User Manual Clear All Press the Clear All pushbutton to clear all user programs stored in this ROC FloBoss out of its memory This is typically done if you need to load a user program into a memory block already in use Turn On To turn on a user program select the check box next to the user program and press the Turn On pushbutton Note that the Status field displays ON or OFF to indicate the status of the user program After turning on a user program perform a Write to EEPROM or Write to Internal Config Memory procedure in the ROC Flags screen This ensures that when a Cold Start is performed the user program automatically starts Turn Off To turn off a user program select the check box next to the user program and press the Turn Off pushbutton Note that the Status field displays ON or OFF to indicate the status of the user program Cancel Press the Cancel pushbutton to cancel all actions and leave the User Programs screen 10 Rev 9 01 Steam Program User Manual 2 4 DOWNLOAD PROCEDURE Once you have determined the memory required by the desired user program is available see Section 3 1 you may proceed to select and download the program To download the Steam Program using ROCLINK 1 Select Utilities from the ROCLINK menu
18. ns of the products described herein ii Rev 9 00 Steam Program User Manual Table of Contents SECTION 1 INTRODUCTION 6 sccssscasissatsextsceniesssstebetadsvadsevsseteassunvoonsesscebncstutvebesootses 1 11 Organzanonof Manual ook ee ae Ge tetanic ue citus 1 152 Overview Deser pu On ssacncisesiotalos E sues ta I a gotta Uto Rivas deo seers 2 1 2 1 Requirements di eu tab RE he Hadi apenas eG adres aaa eee meee 2 1 3 Additional ML Ora ue ies top etit loti ee inet um 3 I EC zeli eL 4 SECTION 2 DOWNLOADING THE STEAM 7 Xli Program Description eer ecrire dtes ie d ipeo didus eee ten eis diu cat veu c Eqs 7 2 2 Program Redquirermelitsza iiie etaed Gli olo D M La epa 8 23 7 Viewing Available Memory ouod eui cate lel ol Mee aig Saale sat tu aul catu ed aside 8 24 Download Procedure eei etie ead dea PR etude Dope o duce due 11 SECTION 3 CONFIGURING THE STEAM PROGRAM 13 Jl Suc EP Tc m 13 3 1 1 TPUS RD M 16 3 1 2 PV CD eC 19 3 1 3 Tota S St ose Sou cc ue i EcL e ECC Ec 20 APPENDIX A POINT TYPE LISTING 23 Rev 9 01 iii Steam Program User Manual This page is intentionally left blank iv R
19. oint Valid IEEE Floating Temperature Value Point Number F or C 0 0 0 or 3 x 14 or Steam Quality Input 16 x 2 11 or 17 x 2 21 Point or 31 x 11 or 31 x 15 or 31 x 17 or 31 x 19 where x is a valid point number for the given point type 24 Rev 9 01 Steam Program User Manual PARAM READ VALID RANGE DATA LENGTH DEFAULT DESCRIPTION NUMBER WRITE TYPE UNITS FOR STEAM 0 0 0 or 3 x 14 or Mass Flow Input 16 x 2 11 or 17 x 2 21 Point or 31 x 11 or 31 x 15 or 31 x 17 or 31 x 19 where x is a valid point number for the given point type Valid IEEE Floating Elevation Feet or Point Number Meters Valid IEEE Floating 14 467 Atmospheric Point Number Pressure PSI or kPa Valid IEEE Floating Low Flow Alarm Limit Point Number MLbm hr or tonnes hr Valid IEEE Floating FLP 4 10 000 High Flow Alarm Point Number Limit MLbm hr or tonnes hour Valid IEEE Floating Pipe Diameter Point Number inches or mm pur IEEE Floating e Wu Diameter pur n Number a or mm Valid IEEE Floating Material Code Point Number 0 to 12 Valid IEEE Floating Orifice Material Code Point Number 0 to 12 Valid IEEE Floating Point Number Valid IEEE Floating Orifice Measuring Point Number ac F or Valid IEEE Floating Steam Enthalpy Point Number BTU lbm or kJ kg Valid IEEE Floating Steam Density Point Number Ibm ft3 or kg m3 Valid IEEE Floating Mass Flow Rate Point Number Hour MLbm hr or
20. ssing F8 Save Flow Input Press the associated pushbutton to toggle between Volume the default and Mass Unless you are connecting the ROC FloBoss to a corrected mass flow input leave Volume selected Units Press the associated pushbutton to toggle between U S the default also called English or Imperial and Metric for this point The input output conversion calculations and units as displayed on the screen will automatically change to accommodate your selection The units used or expected are summarized in the table below Units of Measurement Summary Parameter Steam U S Steam Metric Water U S Water Metric Mass Flow Rate MLbm hr Tonnes hr Tons hr Tonnes hr Energy Flow Rate MMBTU hr MJ hr MBTU hr MJ hr Density Lbm ft kg m Lbm ft kg m Enthalpy BTU Lbm KJ kg BTU Lbm KJ kg Actual Volume Flow Actual CF hr Actual CM hr Gal min L min Mass Flow Input MLbm hr Tonnes hr Tons hr Tonnes hr Static Pressure PSI kPa PSI kPa Temperature F C F C Steam Quality Alarm Limits MLbm hr Tonnes hr Tons hr Tonnes hr Mass Totals MLbm Tonnes Tons Tonnes Energy Totals MMBTU MJ MBTU MJ Phase Press the associated pushbutton to toggle between Steam the default and Water Note that this selection changes only the units used see the table above it does not affect the calculation which automatically changes based on the temperature and pressure also see Ste
21. team point Mass This Month The total of daily mass flows so far in the current month Mass Last Month The total of daily mass flows for the entire previous month Energy Today The total of energy flow so far in the current day as calculated by this steam point Units are in MMBTU millions of BTUs for steam and in MBTU thousands of BTUs for water When Metric units are selected the unit of measurement is MJ megajoules for both steam and water Energy Yesterday The total of energy flow for the entire previous day as calculated by this steam point 20 Rev 9 01 Steam Program User Manual Energy This Month The total of daily energy flows so far in the current month Energy Last Month The total of daily energy flows for the entire previous month Rev 9 01 21 Steam Program User Manual 22 Rev 9 01 Steam Program User Manual APPENDIX A POINT TYPE LISTING Table A 1 shows the parameter definitions for the Steam point type which is a User Data point tailored for the Steam Water Thermodynamics application For further descriptions of the parameters used in configuring the ROC FloBoss refer to Section 3 of this manual Table A 1 Point Type 27 Steam Flow Parameters PARAM READ VALID RANGE DATA LENGTH NUMBER WRITE TYPE 20 Printable ASCII characters 0x20 gt 0x7d 20 D Rev 9 01 DEFAULT DESCRIPTION UNITS FOR STEAM STEAM Point Tag ld x where X 1 logical
22. terday Mass This Month Mass Last Month Measured in MLb tonnes for steam or in tons tonnes for water Density lbm ft kg m Max Min Available through history on daily basis ALARMS Low High Alarm Limits beyond which an alarm will be indicated RBX Alarm Report by exception alarm call in may be enabled Rev 9 01 Steam Program User Manual Specifications Continued MONITORED VALUES Station Tag Atmospheric Pressure Calc Enter Elevation Atmospheric Pressure Calc Enter Low Alarm Limit High Alarm Limit Units US English Metric Pressure Absolute Gauge Alarm Mode Alarm Code Actual Volume Input or Actual Differential Pressure Pressure Input Temperature Input Quality Input Actual Volume Rate Pressure Temperature Coefficient of discharge differential mode Isentropic exponent differential mode Rev 9 01 Viscosity differential mode Expansion Factor differential mode Steam Quality Enthalpy Density Mass Flow per Hour Mass Flow per Day Mass Today Mass Yesterday Mass Current Month Mass Last Month Energy Flow per Hour Energy Flow per Day Energy Today Energy Yesterday Energy Current Month Energy Last Month Steam Program User Manual 6 Rev 9 01 Steam Program User Manual SECTION 2 DOWNLOADING THE STEAM PROGRAM This section provides instructions for installing the Steam Water Thermodynamics User Program into ROC or FloBoss memory Be sure to read Sec
23. the Inputs pushbutton in the Steam Calculation Setup screen This displays the Inputs dialog box shown in Figure 3 2 NOTE Interpret the information on the I O Definition pushbutton for example AIN A 3 EU in the following manner The first part is a three character mnemonic in this example AIN means Analog Input that indicates the Point Type The second part such as A 3 indicates the Point Number The third part is a mnemonic indicating the selected Parameter such as EU for the Filtered Engineering Units Parameter Refer to Section 7 of the ROCLINK manual for a definition of mnemonics NOTE If you want to enter a constant value to be used as an input type it in the Value field next to the I O Definition pushbutton You do not need to select the Manual point type before entering this value the pushbutton will still read Undefined For other point types the field next to the pushbutton indicates the actual input value coming into the steam calculation 16 Rev 9 01 Steam Program User Manual VE ROCLINK EXE Inputs Open ROC files Connect ROC On Line COM2 Figure 3 2 Inputs Definition Actual Volume Flow If the Flow Input is set up as Volume in the Steam Setup screen identify the input from a linear flowmeter such as a vortex meter that measures the volume of steam or water If you want to enter a constant value to be used as the input type the value in the Value field to the right of the pushbut
24. tion 2 2 Program Requirements before proceeding to the actual program installation This section includes Program Description Program Requirements Viewing Available Memory Download Procedure NOTE A PC compatible computer must be connected to the Operator Interface port LOI before the downloading process is started User program memory must be available unallocated in the intended download memory area 2 1 PROGRAM DESCRIPTION When loaded into user program memory as instructed in Section 3 the Steam Water Thermodynamics Application Program sets up points and parameters for the calculations The ROCLINK Configuration Software is then used to configure and monitor each of these parameters The program files are supplied either on a single 1 4 Mbyte diskette or on a CD ROM Note that the steam parameters are referenced in the ROC FloBoss the same as other point type parameters by Type Logical number and Parameter TLP This allows parameters such as Static Pressure to be assigned as an input to a Process Variable for a PID loop a variable to display on a Local Display Panel or a variable for any other ROC function Refer to Appendix A for a complete list of the parameters associated with the Steam point type Rev 9 01 7 Steam Program User Manual 2 2 PROGRAM REQUIREMENTS The Steam Water Thermodynamics Application Program is downloaded into and run from User Program memory located either in a FlashPAC module
25. ton Otherwise this field just indicates the current input value The units expected are actual cubic feet per hour for steam or in gallons per minute for water If Metric is selected then the units are actual cubic meters per hour for steam or liters per minute for water Mass Flow If the Flow Input is set up as Mass in the Steam Setup screen use the associated pushbutton to identify the input providing a corrected mass flow otherwise leave this input undefined If you want to enter a constant value to be used as the input type the value in the Value field to the right of the pushbutton Otherwise this field just indicates the current input value The units expected are MLbm hr thousand pounds per hour for steam or tons per hour for water If Metric units are selected expected units are tonnes per hour for both steam and water Static Pressure The associated pushbutton displays a dialog box that lets you assign the input that senses the static pressure of the steam or water If you want to enter a constant value to be used as the input type the value in the Value field to the right of the pushbutton Otherwise this field just indicates the current input value The units assumed for the input are PSI kPa if Metric conversion is enabled Be sure to Rev 9 01 17 Steam Program User Manual indicate the whether the pressure input is an Absolute or a Gauge measurement on the Steam Setup screen Temperature The associ
26. w points using the ROCLINK Configuration Software Note that the flow points and their associated parameters will not be available in ROCLINK until the Steam W ater Thermodynamics User Program is downloaded as instructed in Section 2 For a detailed programmer s listing of the parameters in a steam point see Appendix A 3 1 CONFIGURATION The Steam point type allows configuration of all parameters associated with the steam water flow calculation including inputs and alarms Once the Steam Program is loaded into ROC FloBoss memory and running Steam Calculation screens become available from the ROCLINK menus When you select the Steam option in the Meter menu a screen similar to Figure 3 1 appears 8 ROCLINK EXE Steam Calculation Setup STEAM 1 lt gt Enabled lt gt Gauge BEnter Open ROC files Connect ROC On Line COM2 Figure 3 1 Steam Calculation Setup Screen The Title Bar of the Steam Setup screen displays the specific number such as 1 of 3 of the Steam Calculation point also called a meter run you are configuring The number of Steam points available Rev 9 01 13 Steam Program User Manual varies from 3 in the ROC306 ROC312 to 5 in the ROC364 Press F3 Next and F2 Prev to view or configure other Steam Calculation points Meter ID Ten character name default is STEAM 1 for this meter run that resides in the ROC FloBoss This name can be changed by entering a new name in the field and pre
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