YOKOGAWA EJX User's Manual

User’s Manual

EJX Series Fieldbus Communication Type

IM 01C25T02-01E

Yokogawa Electric Corporation

IM 01C25T02-01E

4th Edition

CONTENTS

1. INTRODUCTION............................................................................................ 1-1

Regarding This Manual ................................................................................. 1-1

1.1 Safe Use of This Product.................................................................... 1-2

1.2 Warranty.............................................................................................. 1-3

1.3 ATEX Documentation.......................................................................... 1-3

2. HANDLING CAUTIONS ................................................................................ 2-1

2.1 Installation of an Explosion-Protected Instrument .............................. 2-1

2.1.1 FM approval ................................................................................. 2-1

2.1.2 CSA Certification .......................................................................... 2-3

2.1.3 CENELEC ATEX Certification...................................................... 2-4

3. ABOUT FIELDBUS ....................................................................................... 3-1

3.1 Outline ................................................................................................. 3-1

3.2 Internal Structure of EJX..................................................................... 3-1

3.2.1 System/network Management VFD ............................................. 3-1

3.2.2 Function Block VFD ..................................................................... 3-1

3.3 Logical Structure of Each Block.......................................................... 3-1

3.4 Wiring System Configuration .............................................................. 3-1

4. GETTING STARTED .....................................................................................4-1

4.1 Connection of Devices ........................................................................ 4-1

4.2 Host Setting......................................................................................... 4-2

4.3 Bus Power ON .................................................................................... 4-3

4.4 Integration of DD................................................................................. 4-3

4.5 Reading the Parameters ..................................................................... 4-3

4.6 Continuous Record of Values ............................................................. 4-4

4.7 Generation of Alarm............................................................................ 4-4

5. CONFIGURATION......................................................................................... 5-1

5.1 Network Design................................................................................... 5-1

5.2 Network Definition ............................................................................... 5-1

5.3 Definition of Combining Function Blocks ............................................ 5-2

5.4 Setting of Tags and Addresses .......................................................... 5-3

5.5 Communication Setting ....................................................................... 5-4

5.5.1 VCR Setting .................................................................................. 5-4

5.5.2 Function Block Execution Control ................................................ 5-5

5.6 Block Setting ....................................................................................... 5-5

5.6.1 Link Object ................................................................................... 5-5

5.6.2 Trend Object ................................................................................. 5-6

5.6.3 View Object .................................................................................. 5-6

5.6.4 Function Block Parameters ........................................................ 5-10

IM 01C25T02-01E

CONTENTS

6. EXPLANATION OF BASIC ITEMS ............................................................... 6-1

6.1 Outline ................................................................................................. 6-1

6.2 Setting and Changing Parameters for the Whole Process ................ 6-1

6.3 SENSOR Transducer Block................................................................ 6-1

6.3.1 Functional block ........................................................................... 6-1

6.3.2 Block Mode ................................................................................... 6-1

6.3.3 Functions Relating to Pressure/Differential Pressure .................. 6-2

6.3.4 Functions Relating to Static Pressure .......................................... 6-3

6.3.5 Functions Relating to Capsule and Amplifier Temperature......... 6-4

6.3.6 BLOCK_ERR................................................................................ 6-4

6.3.7 XD_ERROR.................................................................................. 6-4

6.4 LCD Transducer Block........................................................................ 6-5

6.4.1 Outline of the Functions ............................................................... 6-5

6.4.2 Block Mode ................................................................................... 6-5

6.4.3 Display Contents of the integral indicator .................................... 6-5

6.4.4 Example Displays of the integral indicator ................................... 6-6

6.4.5 Procedure to Set the Built-in Display........................................... 6-7

6.4.6 Units That Can Be Displayed on the LCD by the Automatic Link

Function........................................................................................ 6-9

6.5 AI Function Block .............................................................................. 6-10

6.5.1 Function Blocks .......................................................................... 6-10

6.5.2 Block Mode ................................................................................. 6-10

6.5.3 IO_OPTS .................................................................................... 6-10

6.5.4 STATUS_OPT ............................................................................ 6-10

6.5.5 OUT_D ....................................................................................... 6-11

6.5.6 Basic Parameters of the AI Block. ............................................. 6-11

7. IN-PROCESS OPERATION .......................................................................... 7-1

7.1 Mode Transition .................................................................................. 7-1

7.2 Generation of Alarm............................................................................ 7-1

7.2.1 Indication of Alarm ....................................................................... 7-1

7.2.2 Alarms and Events ....................................................................... 7-1

7.3 Simulation Function............................................................................. 7-2

8. DEVICE INFORMATION ............................................................................... 8-1

8.1 DEVICE STATUS................................................................................ 8-1

8.2 Status of each parameter in failure mode .......................................... 8-4

9. PARAMETER LISTS .....................................................................................9-1

9.1 Resource Block ................................................................................... 9-1

9.2 SENSOR Transducer Block................................................................ 9-3

9.3 LCD Transducer Block........................................................................ 9-7

9.4 Al Function Block ................................................................................ 9-9

10. GENERAL SPECIFICATIONS .................................................................... 10-1

10.1 STANDARD SPECIFICATIONS ....................................................... 10-1

10.2 OPTIONAL SPECIFICATIONS ......................................................... 10-1

10.3 OPTIONAL SPECIFICATIONS (For Explosion Protected type)....... 10-2

IM 01C25T02-01E

CONTENTS

Appendix 1. Signal Characterizer (SC) Block ............................................... A-1

A1.1 Schematic Diagram of Signal Characterizer Block.............................A-1

Input/Output Parameters.....................................................................A-1

A1.2 Input Section ....................................................................................... A-3

A1.2.1 Determining the Mode..................................................................A-3

A1.2.2 Judging BLOCK_ERR.................................................................. A-3

A1.3 Line-segment Factor Determination Section ....................................... A-4

A1.3.1 Conditions for Configuring Valid Coefficients

(CURVE_X, CURVE_Y) ...............................................................A-4

A1.4 List of Signal Characterizer Block Parameters ...................................A-6

A1.5 Application Example............................................................................A-7

A1.5.1 Input Compensation .....................................................................A-7

A1.5.2 Calorie Flow Compensation......................................................... A-7

A1.5.3 Backward Control......................................................................... A-7

Appendix 2. Integrator (IT) Block ................................................................... A-9

A2.1 Schematic Diagram of Integrator Block ..............................................A-9

A2.2 Input Process Section .......................................................................A-10

A2.2.1 Determining Input Value Statuses ............................................. A-10

A2.2.2 Converting the Rate ...................................................................A-10

A2.2.3 Converting Accumulation ........................................................... A-11

A2.2.4 Determining the Input Flow Direction .........................................A-11

A2.3 Adder................................................................................................. A-12

A2.3.1 Status of Value after Addition ....................................................A-12

A2.3.2 Addition.......................................................................................A-12

A2.4 Integrator ...........................................................................................A-13

A2.5 Output Process .................................................................................A-14

A2.5.1 Status Determination..................................................................A-14

A2.5.2 Determining the Output Value ....................................................A-15

A2.5.3 Mode Handling ...........................................................................A-16

A2.6 Reset .................................................................................................A-17

A2.6.1 Reset Trigger ..............................................................................A-17

A2.6.2 Reset Timing ..............................................................................A-17

A2.6.3 Reset Process............................................................................ A-18

A2.7 List of Integrator Block Parameters .................................................. A-19

Appendix 3. Input Selector (IS) Block.......................................................... A-21

A3.1 Input Selector Function Block Schematic .........................................A-21

A3.2 Input Section ..................................................................................... A-23

A3.2.1 Mode Handling ...........................................................................A-23

A3.2.2 MIN_GOOD Handling .................................................................A-23

A3.3 Selection............................................................................................A-24

A3.3.1 OP_SELECT Handling............................................................... A-24

A3.3.2 SELECTION Handling................................................................A-25

A3.4 Output Processing.............................................................................A-31

A3.4.1 Handling of SELECTED............................................................. A-31

A3.4.2 OUT Processing......................................................................... A-32

A3.4.3 STATUS_OPTS..........................................................................A-33

A3.5 List of Input Selector Block Parameters ........................................... A-33

A3.6 Application Example..........................................................................A-34

iii

IM 01C25T02-01E

CONTENTS

Appendix 4. Arithmetic (AR) Block .............................................................. A-35

A4.1 Arithmetic Function Block Schematic ...............................................A-35

A4.2 Input Section ..................................................................................... A-36

A4.2.1 Main Inputs.................................................................................A-36

A4.2.2 Auxiliary Inputs........................................................................... A-36

A4.2.3 INPUT_OPTS............................................................................. A-37

A4.2.4 Relationship between the Main Inputs and PV ..........................A-37

A4.3 Computation Section......................................................................... A-38

A4.3.1 Computing Equations................................................................. A-38

A4.3.2 Compensated Values................................................................. A-38

A4.3.3 Average Calculation ...................................................................A-38

A4.4 Output Section ..................................................................................A-38

A4.4.1 Mode Handling ...........................................................................A-39

A4.4.2 Status Handling.......................................................................... A-39

A4.5 List of the Arithmetic Block Parameters ...........................................A-40

APPENDIX 5. PID BLOCK .............................................................................. A-42

A5.1 Function Diagram.............................................................................. A-42

A5.2 Functions of PID Block .....................................................................A-42

A5.3 Parameters of PID Block ..................................................................A-43

A5.4 PID Computation Details...................................................................A-45

A5.4.1 PV-proportional and -derivative Type PID (I-PD) Control

Algorithm ....................................................................................A-45

A5.4.2 PID Control Parameters............................................................. A-45

A5.5 Control Output................................................................................... A-45

A5.5.1 Velocity Type Output Action .......................................................A-45

A5.6 Direction of Control Action ................................................................A-45

A5.7 Control Action Bypass.......................................................................A-45

A5.8 Feed-forward .....................................................................................A-46

A5.9 Block Modes......................................................................................A-46

A5.9.1 Mode Transitions........................................................................A-46

A5.10Bumpless Transfer ............................................................................ A-47

A5.11Setpoint Limiters ............................................................................... A-47

A5.11.1 When PID Block Is in Auto Mode ............................................ A-47

A5.11.2 When PID Block Is in Cas or RCas Mode...............................A-47

A5.12External-output Tracking ................................................................... A-47

A5.13Measured-value Tracking.................................................................. A-47

A5.14Initialization and Manual Fallback (IMan) .........................................A-48

A5.15Manual Fallback ................................................................................ A-48

A5.16Auto Fallback .................................................................................... A-48

A5.17Mode Shedding upon Computer Failure........................................... A-49

A5.17.1 SHED_OPT .............................................................................. A-49

A5.18Alarms ...............................................................................................A-49

A5.18.1 Block Alarm (BLOCK_ALM) .....................................................A-49

A5.18.2 Process Alarms ........................................................................ A-49

A5.19Example of Block Connections ......................................................... A-50

A5.20View Object for PID Function Block ................................................. A-50

IM 01C25T02-01E

CONTENTS

APPENDIX 6. LINK MASTER FUNCTIONS ................................................... A-52

A6.1 Link Active Scheduler .......................................................................A-52

A6.2 Link Master........................................................................................A-52

A6.3 Transfer of LAS................................................................................. A-53

A6.4 LM Functions.....................................................................................A-54

A6.5 LM Parameters..................................................................................A-55

A6.5.1 LM Parameter List...................................................................... A-55

A6.5.2 Descriptions for LM Parameters ................................................A-57

A6.6 FAQs ................................................................................................. A-59

APPENDIX 7. SOFTWARE DOWNLOAD ....................................................... A-60

A7.1 Benefits of Software Download.........................................................A-60

A7.2 Specifications .................................................................................... A-60

A7.3 Preparations for Software Downloading ........................................... A-60

A7.4 Software Download Sequence..........................................................A-61

A7.5 Download Files..................................................................................A-61

A7.6 Steps after Activating a Field Device................................................A-62

A7.7 Troubleshooting.................................................................................A-63

A7.8 Resource Block’s Parameters Relating to Software Download .......A-63

A7.9 System/Network Management VFD Parameters Relating to Software

Download ..........................................................................................A-65

A7.10Comments on System/Network Management VFD Parameters

Relating to Software Download ........................................................A-66

REVISION RECORD

IM 01C25T02-01E

1. INTRODUCTION

This manual is for the DPharp EJX Series Differential Pressure/Pressure Transmitter Fieldbus Communication Type. The Fieldbus communication type is based on the same silicon resonant sensing technology used in the BRAIN/HART communication type, and is similar to the communication types in terms of basic performance and operation. This manual describes only those topics that are required for operation of the Fieldbus communication type. For information on the installation, wiring, and maintenance of EJX series pressure transmitters, refer to the user’s manual for each model. Also note that the contents of this manual are applicable for device revision 3 of EJX series pressure transmitters. See a device information sheet attached to the instrument to check the device revision.

 Regarding This Manual

•This manual should be passed on to the end user.

• The contents of this manual are subject to change without prior notice.

WARNING

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices.

IMPORTANT

Indicates that operating the hardware or software in this manner may damage it or lead to system failure.

• Yokogawa makes no warranty of any kind with regard to this manual, including, but not limited to, implied warranty of merchantability and fitness for a particular purpose.

• If any question arises or errors are found, or if any information is missing from this manual, please inform the nearest Yokogawa sales office.

• The specifications covered by this manual are limited to those for the standard type under the specified model number break-down and do not cover custom-made instruments.

• Please note that changes in the specifications, construction, or component parts of the instrument may not immediately be reflected in this manual at the time of change, provided that postponement of revisions will not cause difficulty to the user from a functional or performance standpoint.

• The following safety symbols are used in this manual:

NOTE

Draws attention to information essential for understanding the operation and features.

1-1

IM 01C25T02-01E

1. INTRODUCTION

1.1 Safe Use of This Product

For the safety of the operator and to protect the instrument and the system, please be sure to follow this manual’s safety instructions when handling this instrument. If these instructions are not heeded, the protection provided by this instrument may be impaired. In this case, Yokogawa cannot guarantee that the instrument can be safely operated. Please pay special attention to the following points:

(a) Installation

• This instrument may only be installed by an engineer or technician who has an expert knowledge of this device. Operators are not allowed to carry out installation unless they meet this condition.

•With high process temperatures, care must be taken not to burn yourself by touching the instrument or its casing.

• Never loosen the process connector nuts when the instrument is installed in a process. This can lead to a sudden, explosive release of process fluids.

•When draining condensate from the pressure detector section, take appropriate precautions to prevent the inhalation of harmful vapors and the contact of toxic process fluids with the skin or eyes.

• When removing the instrument from a hazardous process, avoid contact with the fluid and the interior of the meter.

•Wait 5 min. after the power is turned off, before opening the covers.

(d) Maintenance

• Please carry out only the maintenance procedures described in this manual. If you require further assistance, please contact the nearest Yokogawa office.

•Care should be taken to prevent the build up of dust or other materials on the display glass and the name plate. To clean these surfaces, use a soft, dry cloth.

(e) Explosion Protected Type Instrument

•Users of explosion proof instruments should refer first to section 2.1 (Installation of an Explosion Protected Instrument) of this manual.

• The use of this instrument is restricted to those who have received appropriate training in the device.

• Take care not to create sparks when accessing the instrument or peripheral devices in a hazardous location.

(f) Modification

• Yokogawa will not be liable for malfunctions or damage resulting from any modification made to this instrument by the customer.

•All installation work shall comply with local installation requirements and the local electrical code.

(b) Wiring

• The instrument must be installed by an engineer or technician who has an expert knowledge of this instrument. Operators are not permitted to carry out wiring unless they meet this condition.

• Before connecting the power cables, please confirm that there is no current flowing through the cables and that the power supply to the instrument is switched off.

1-2

IM 01C25T02-01E

1. INTRODUCTION

1.2 Warranty

•The warranty shall cover the period noted on the quotation presented to the purchaser at the time of purchase. Problems occurring during the warranty period shall basically be repaired free of charge.

• If any problems are experienced with this instrument, the customer should contact the Yokogawa representative from which this instrument was purchased or the nearest Yokogawa office.

• If a problem arises with this instrument, please inform us of the nature of the problem and the circumstances under which it developed, including the model specification and serial number. Any diagrams, data and other information you can include in your communication will also be helpful.

• The party responsible for the cost of fixing the problem shall be determined by Yokogawa following an investigation conducted by Yokogawa.

1.3 ATEX Documentation

This is only applicable to the countries in European Union.

All instruction manuals for ATEX Ex related products are available in English, German and French. Should you require Ex related instructions in your local language, you are to contact your nearest Yokogawa office or representative.

Alle brugervejledninger for produkter relateret til ATEX Ex er tilgængelige på engelsk, tysk og fransk. Skulle De ønske yderligere oplysninger om håndtering af Ex produkter på eget sprog, kan De rette henvendelse herom til den nærmeste Yokogawa afdeling eller forhandler.

• The purchaser shall bear the responsibility for repair costs, even during the warranty period, if the malfunction is due to:

- Improper and/or inadequate maintenance by the

purchaser.

- Malfunction or damage due to a failure to handle,

use, or store the instrument in accordance with the design specifications.

- Use of the product in question in a location not

conforming to the standards specified by Yokogawa, or due to improper maintenance of the installation location.

- Failure or damage due to modification or repair by

any party except Yokogawa or an approved representative of Yokogawa.

- Malfunction or damage from improper relocation

of the product in question after delivery.

- Reason of force majeure such as fires, earthquakes,

storms/floods, thunder/lightening, or other natural disasters, or disturbances, riots, warfare, or radioactive contamination.

Tutti i manuali operativi di prodotti ATEX contrassegnati con Ex sono disponibili in inglese, tedesco e francese. Se si desidera ricevere i manuali operativi di prodotti Ex in lingua locale, mettersi in contatto con l’ufficio Yokogawa più vicino o con un rappresentante.

Todos los manuales de instrucciones para los productos antiexplosivos de ATEX están disponibles en inglés, alemán y francés. Si desea solicitar las instrucciones de estos artículos antiexplosivos en su idioma local, deberá ponerse en contacto con la oficina o el representante de Yokogawa más cercano.

Alle handleidingen voor producten die te maken hebben met ATEX explosiebeveiliging (Ex) zijn verkrijgbaar in het Engels, Duits en Frans. Neem, indien u aanwijzingen op het gebied van explosiebeveiliging nodig hebt in uw eigen taal, contact op met de dichtstbijzijnde vestiging van Yokogawa of met een vertegenwoordiger.

1-3

IM 01C25T02-01E

Kaikkien ATEX Ex -tyyppisten tuotteiden käyttöhjeet ovat saatavilla englannin-, saksan- ja ranskankielisinä. Mikäli tarvitsette Ex -tyyppisten tuotteiden ohjeita omalla paikallisella kielellännne, ottakaa yhteyttä lähimpään Yokogawa-toimistoon tai -edustajaan.

Todos os manuais de instruções referentes aos produtos Ex da ATEX estão disponíveis em Inglês, Alemão e Francês. Se necessitar de instruções na sua língua relacionadas com produtos Ex, deverá entrar em contacto com a delegação mais próxima ou com um representante da Yokogawa.

1. INTRODUCTION

Tous les manuels d’instruction des produits ATEX Ex sont disponibles en langue anglaise, allemande et française. Si vous nécessitez des instructions relatives aux produits Ex dans votre langue, veuillez bien contacter votre représentant Yokogawa le plus proche.

Alle Betriebsanleitungen für ATEX Ex bezogene Produkte stehen in den Sprachen Englisch, Deutsch und Französisch zur Verfügung. Sollten Sie die Betriebsanleitungen für Ex-Produkte in Ihrer Landessprache benötigen, setzen Sie sich bitte mit Ihrem örtlichen Yokogawa-Vertreter in Verbindung.

Alla instruktionsböcker för ATEX Ex (explosionssäkra) produkter är tillgängliga på engelska, tyska och franska. Om Ni behöver instruktioner för dessa explosionssäkra produkter på annat språk, skall Ni kontakta närmaste Yokogawakontor eller representant.

       ATEX Ex   ,   .        Ex           Yokogawa   .

1-4

IM 01C25T02-01E

2. HANDLING CAUTIONS

2.1 Installation of an Explosion-

Protected Instrument

If a customer makes a repair or modification to an intrinsically safe or explosionproof instrument and the instrument is not restored to its original condition, its intrinsically safe or explosionproof construction may be compromised and the instrument may be hazardous to operate. Please contact Yokogawa before making any repair or modification to an instrument.

CAUTION

This instrument has been tested and certified as being intrinsically safe or explosionproof. Please note that severe restrictions apply to this instrument’s construction, installation, external wiring, maintenance and repair. A failure to abide by these restrictions could make the instrument a hazard to operate.

WARNING

Maintaining the safety of explosionproof equipment requires great care during mounting, wiring, and piping. Safety requirements also place restrictions on maintenance and repair. Please read the following sections very carefully.

WARNING

The range setting switch must not be used in a hazardous area.

2.1.1 FM approval

a. FM Explosionproof Type

Caution for FM Explosionproof type Note 1. EJX Series differential gauge, and absolute

pressure transmitters with optional code /FF1 are applicable for use in hazardous locations:

• Applicable Standard: FM3600, FM3615, FM3810, ANSI/NEMA 250

• Explosionproof for Class I, Division 1, Groups B, C and D.

•Dust-ignitionproof for Class II/III, Division 1, Groups E, F and G.

• Enclosure rating: NEMA 4X.

• Temperature Class: T6

• Ambient Temperature: –40 to 60°C

• Supply Voltage: 32V dc max.

• Current Draw: 15 mA dc

Note 2. Wiring

• All wiring shall comply with National Electrical Code ANSI/NFPA70 and Local Electrical Codes.

•When installed in Division 1, “FACTORY SEALED, CONDUIT SEAL NOT REQUIRED.”

Note 3. Operation

•Keep the “WARNING” nameplate attached to the transmitter. WARNING: OPEN CIRCUIT BEFORE

REMOVING COVER. FACTORY SEALED, CONDUIT SEAL NOT REQUIRED. INSTALL IN ACCORDANCE WITH THE USERS MANUAL IM 01C25.

• Take care not to generate mechanical sparking when accessing the instrument and peripheral devices in a hazardous location.

Note 4. Maintenance and Repair

• The instrument modification or parts replacement by other than authorized representative of Yokogawa Electric Corporation is prohibited and will void Factory Mutual Explosionproof Approval.

2-1

IM 01C25T02-01E

2. HANDLING CAUTIONS

b. FM Nonincendive Type

EJX Series differential, gauge, and absolute pressure transmitters with optional code /FN15.

• Applicable Standard: Class 3600, Class 3611, Class 3810,ANSI/NEMA250

• Class I, Division 2, Groups A, B, C & D

Temperature Class T4 Ta=60°C, Type 4X and Class II, Division 2, Groups F & G Temperature Class T4 Ta=60°C, Type 4X and Class III, Division 1, Temperature Class T4 Ta=60°C, Type 4X and Class I, Zone 2, Group IIC, Temperature Class T4 Ta=60°C, Type 4X

• Electrical Connection: 1/2 NPT female and M20 female

• Caution for FM Nonincendive type. (Following contents refer to “DOC. No. IFM024-A12 p.3, p.4-1, and p.4-2.”)

 IFM024-A12

 Installation Diagram for Nonincendive

(Division 2 Installation)

Terminator



Pressure Transmitter



SUPPLY



Transmitter





Transmitter



Hazardous location

Note 1. Installation should be in accordance with the

National Electrical Code ® (ANSI/NFPA 70) Article 500.

Note 2. The configuration of Associated Nonincendive

Field Wiring Apparatus must be FM

Approved. Note 3. Approved under FNICO Concept. Note 4. Dust-tight conduit seal must be used when

installed in Class II and Class III environ-

ments. Note 5. Associated Apparatus manufacturer’s installa-

tion drawing must be followed when installing

this apparatus. Note 6. No revision to drawing without prior FM

Approvals. Note 7. Terminator must be FM Approved. Note 8. The nonincendive field wiring circuit concept

allows interconection of nonincendive field

wiring apparatus with associated nonincendive

field wiring apparatus, using any of the wiring

methods permitted for unclassified locations. Note 9. Installation requirements;

Vmax  Voc or Vt

Imax = see note 10. Ca  Ci + Ccable La  Li + Lcable

Note 10. For this current controlled circuit, the param-

eter (Imax 3) is not required and need not be aligned with parameter (Isc 3) of the barrier or associated nonincendive field wiring apparatus.

Note 11. If ordinary location wiring methods are used,

the transmitter shall be connected to FM Approved associated non-incendive field wiring apparatus.

Electrical data:

Vmax: 32V Ci:1.76 nF

Li: 0 H

Terminator



General Purpose

Equipment



Non-Hazardous location

FM Approved Associated Nonincendive Field Wiring Apparatus Vt or Voc It or Isc Ca La

F0204.EPS

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IM 01C25T02-01E

2. HANDLING CAUTIONS

 FNICO Rules

The FNICO Concept allows the interconnection of nonincendive field wiring apparatus to associated nonincendive field wiring apparatus not specifically examined in such combination. The criterion for such interconnection is that the voltage (Vmax), the current (Imax) and the power (Pmax) which nonincendive field wiring apparatus can receive and remain nonincendive, considering faults, must be equal or greater than the voltage (Uo, Voc or Vt), the current (Io, Isc or It) and the power (Po) which can be provided by the associated nonincendive field wiring apparatus (supply unit). In addition the maximum unprotected residual capacitance (Ci) and inductance (Li) of each apparatus (other than terminators) connected to the Fieldbus must be less than or equal to 5nF and 10uH respectively.

In each N.I. Fieldbus segment only one active source, normally the associated nonincendive field wiring apparatus, is allowed to provide the necessary power for the Fieldbus system. The allowed voltage (Uo, Voc or Vt) of the associated nonincendive field wiring apparatus used to supply the bus cable must be limited to the range 14Vdc to 17.5Vdc. All other equipment connected to the bus cable has to be passive, meaning that the apparatus is not allowed to provide energy to the system, except a leakage current of 50É A for each connected device. Separately powered equipment needs galvanic isolation to ensure the nonincendive field wiring Fieldbus circuit remains passive.

Cable

The cable used to interconnect the devices needs to comply with the following parameters:

Loop resistance R': 15...150 Ω/km Inductance per unit length L': 0.4...1 mH/km

Capacitance per unit length C': 80....200 nF/km

C' =C' line/line+0.5 C' line/screen, if both lines are floating or C' = C' line/line + C'line/screen, if thescreen is connected to one line. Length of spur cable: max. 30 m Length of trunk cable: max. 1 km Length of splice: max = 1 m

Terminators

At the end of each trunk cable an FM Approved line terminator with the following parameters is suitable:

R= 90...100 Ω

C = 0 ....2.2 uF

2.1.2 CSA Certification

a. CSA Explosionproof Type

Caution for CSA explosionproof type.

Note 1. Model EJX Series differential, gauge, and

absolute pressure transmitters with optional code /CF1 are applicable for use in hazardous locations:

Certificate: 1589701 [For CSA C22.2]

• Applicable Standard: C22.2 No.0, C22.2 No.0.4, C22.2 No.0.5, C22.2 No.25, C22.2 No.30,

C22.2 No.94, C22.2 No.61010.1-01

• Explosion-proof for Class I, Groups B, C and D.

• Dustignition-proof for Class II/III, Groups E, F and G.

• Enclosure: TYPE 4X

• Temperature Code: T6...T4

[For CSA E60079]

• Applicable Standard: CAN/CSA E60079-0,

CAN/CSA E60079-1

• Flameproof for Zone 1, Ex d IIC T6...T4

• Enclosure: IP66 and IP67

• Maximum Process Temperature: 120°C (T4), 100°C (T5), 85°C (T6)

• Ambient Temperature: –50 to 75°C (T4), –50 to 80°C (T5), –50 to 72 õ (T6)

• Supply Voltage: 32 V dc max.

• Output Signal: 15 mA dc

Note 2. Wiring

• All wiring shall comply with Canadian Electrical Code Part I and Local Electrical Codes.

• In hazardous location, wiring shall be in conduit as shown in the figure.

• WARNING:

A SEAL SHALL BE INSTALLED WITHIN 50cm

OF THE ENCLOSURE.

UN SCELLEMENT DOIT ÊTRE INSTALLÉ À

MOINS DE 50cm DU BOÎTIER.

• WARNING:

WHEN INSTALLED IN CL.I, DIV 2, SEAL NOT

REQUIRED.

UNE FOIS INSTALLÉ DANS CL I, DIV 2,

AUCUN JOINT N'EST REQUIS.

Note 3. Operation

• WARNING:

AFTER DE-ENERGIZING, DELAY 5 MINUTES

BEFORE OPENING.

APRÉS POWER-OFF, ATTENDRE 5 MINUTES

AVANT D'OUVRIR.

2-3

IM 01C25T02-01E

2. HANDLING CAUTIONS

• WARNING: WHEN AMBIENT TEMPERATURE ≥ 65°C,

USE THE HEAT-RESISTING CABLES ≥ 90°C.

QUAND LA TEMPÉRATURE AMBIANTE ≥

65°C, UTILISEZ DES CÂBLES RÉSISTANTES Á LA CHALEUR ≥ 90°C.

• Take care not to generate mechanical sparking when accessing to the instrument and peripheral devices in a hazardous location.

Note 4. Maintenance and Repair

• The instrument modification or parts replacement by other than authorized representative of Yokogawa Electric Corporation and Yokogawa Corporation of America is prohibited and will void Canadian Standards Explosionproof Certification.

Non-Hazardous

Locations

Non-hazardous Location Equipment

32 V DC Max. 15 mA DC Signal

Non-Hazardous

Locations

Non-hazardous Location Equipment

32 V DC Max. 15 mA DC Signal

Hazardous Locations Division 1

50 cm Max.

Sealing Fitting

Conduit

EJX Series

Hazardous Locations Division 2

Sealing Fitting

EJX Series

S U

P PL

CHECK

RM A L

S U

P P

L Y

C E

H C

R A L

F0205.EPS

2.1.3 CENELEC ATEX Certification

(1) Technical Data a. CENELEC ATEX (KEMA) Intrinsically Safe

Type

Caution for CENELEC ATEX (KEMA) Intrinsically safe type.

Note 1. EJX Series differential, gauge, and absolute

pressure transmitters with optional code /KS25 for potentially explosive atmospheres:

• No. KEMA 04ATEX1116 X

• Applicable Standard: EN 50014, EN 50020, EN 50284, EN50281-1-1

Note 2. Ratings

[EEx ia IIC T4] Type of Protection and Marking Code: EEx ia IIC T4 Group: II Category: 1GD Ambient Temperature: –40 to 60°C Maximum Process Temperature (Tp.): 120°C Maximum Surface Temperature for dust

proof.

T85°C (Tamb.: –40°C to 60°C, Tp.: 80°C) T100°C (Tamb.: –40°C to 60°C, Tp.: 100°C) T120°C (Tamb.: –40°C to 60°C, Tp.: 120°C) Degree of Protection of the Enclosure: IP66 and IP67 Electrical Data

• When combined with Trapezoidal and Rectangular output characteristic FISCO model IIC barrier

Ui = 17.5 V, Ii = 380 mA, Pi = 5.32 W, Ci = 1.76 nF, Li = 0 H

SE PUL

• When combined with Linear characteristic

barrier Ui = 24.0 V, Ii = 250 mA, Pi = 1.2 W, Ci = 1.76 nF, Li = 0 H [EEx ia IIB T4] Type of Protection and Marking Code:

EEx ia IIB T4 Group: II Category: 1GD

E S UL P

Ambient Temperature: –40 to 60°C Maximum Process Temperature (Tp.): 120°C Maximum Surface Temperature for dust

proof.

• When combined with Trapezoidal or Rectangular output characteristic FISCO model IIB barrier

Ui = 17.5 V, Ii = 460 mA, Pi = 5.32 W, Ci = 1.76 nF, Li = 0 H

Note 3. Installation

• All wiring shall comply with local installation requirements. (Refer to the installation diagram)

Note 4. Maintenance and Repair

• The instrument modification or parts replacement by other than authorized representative of Yokogawa Electric Corporation is prohibited and will void KEMA Intrinsically safe Certification.

2-4

IM 01C25T02-01E

2. HANDLING CAUTIONS

Note 5. Special Conditions for Safe Use

• In the case where the enclosure of the Pressure Transmitter is made of aluminium, if it is mounted in an area where the use of category 1 G apparatus is required, it must be installed such, that even in the event of rare incidents, ignition sources due to impact and friction sparks are excluded.

Note 6. Installation instructions

• From the safety point of view the circuit shall be considered to be connected to earth. As this deviates from the FISCO system in acordance with IEC TS 60079-27 care has to be taken that the (local) installation requirements are taken into account as well.

When used in a potentially explosive atmosphere, requiring the use of apparatus of equipment category 1D or 2D, certified cable entry devices shall be used that are suitable for the application and correctly installed.

 FISCO Model

Supply unit

The supply unit must be certified by a Notified body as FISCO model and following trapezoidal or rectangular output characteristic is used.

Uo = 14...17.5 V (I.S. maximum value) Io based on spark test result or other assessment, No specification of Lo and Co is required on the

certificate or label.

Cable

The cable used to interconnect the devices needs to comply with the following parameters:

Loop resistance Rc: 15...150 Ω/km Inductance per unit length Lc: 0.4...1 mH/km Capacitance per unit length Cc: 80...200 nF/km Length of spur cable: max. 30 m (IIC and IIB) Length of trunk cable: max. 1 km (IIC) or 5 km (IIB)

Terminators

The terminator must be certified by a Notified body as FISCO model and at each end of the trunk cable an approved line terminator with the following parameters is suitable:

Non-Hazardous

Locations

Supply Unit and Safety Barrier (FISCO Model)

Terminator

Data

I.S. fieldbus system complying with FISCO

Hazardous Locations

Ex i

Hand-

held-

Terminal

Field Instruments

(Passive)

Terminator (FISCO Model)

F0201-1.EPS

The criterion for such interconnection is that the voltage (Ui), the current (Ii) and the power (Pi), which intrinsically safe apparatus can receive, must be equal or greater than the voltage (Uo), the current (Io) and the power (Po) which can be provided by the associated apparatus (supply unit).

Po  Pi, Uo  Ui, Io  Ii In addition, the maximum unprotected residual capaci-

tance (Ci) and inductance (Li) of each apparatus (other than the terminators) connected to the fieldbus line must be equal or less than 5 nF and 10 H respectively.

Ci  5 nF, Li  10H

R = 90 . . . 102 Ω C = 0 . . . 2.2 F. (0.8...1.2 F is required in operation)

The resistor must be infallible according to IEC 60079-

11.

Number of Devices

The number of devices (max. 32) possible on a fieldbus link depends on factors such as the power consumption of each device, the type of cable used, use of repeaters, etc.

 Entity Model

Non-Hazardous

Locations

Supply Unit and Safety Barrier

Terminator

Data

I.S. fieldbus system complying with Entity model

Hazardous Locations

Ex i

Hand-

held-

Terminal

Field Instruments

(Passive)

Terminator

F0202-1.EPS

2-5

IM 01C25T02-01E

2. HANDLING CAUTIONS

I.S. values Power supply-field device:

Po  Pi, Uo  Ui, Io  Ii

Calculation of max. allowed cable length:

Ccable  Co - ∑Ci - ∑Ci (Terminator) Lcable  Lo - ∑Li

Number of Devices

The number of devices (max. 32) possible on a fieldbus link depends on factors such as the power consumption of each device, the type of cable used, use of repeaters, etc.

b. CENELEC ATEX (KEMA) Flameproof Type

Caution for CENELEC ATEX (KEMA) flameproof type

Note 1. EJX Series differential, gauge, and absolute

pressure transmitters with optional code /KF2 for potentially explosive atmospheres:

• No. KEMA 03ATEX2570

• Applicable Standard: EN 50014, EN 50018, EN 50281-1-1

• Type of Protection and Marking Code: EEx d IIC T6...T4

• Group: II

• Category: 2G, 1D

• Temperature Class: T6, T5, and T4

• Enclosure: IP66 and IP67

• Ambient Temperature for gas-proof: –50 to 70°C (T6), –50 to 80°C (T5), and –50 to 75°C (T4)

• Maximum Process Temperature (Tp.) for gas-proof: 85°C (T6), 100°C (T5), and 120°C (T4)

• Maximum Surface Temperature for dust-

proof:

T80°C (Tamb.: –40 to 40°C, Tp.: 80°C) T100°C (Tamb.: –40 to 60°C, Tp.: 100°C) T120°C (Tamb.: –40 to 80°C, Tp.: 120°C)

Note 2. Electrical Data

• Supply voltage: 32 V dc max. Output current: 15 mA dc

Note 3. Installation

• All wiring shall comply with local installation requirements.

•The cable entry devices shall be of a certified flameproof type, suitable for the conditions of use.

Note 4. Operation

• Keep the “WARNING” label attached to the transmitter. WARNING: AFTER DE-ENERGIZING,

DELAY 5 MINUTES BEFORE OPENING. WHEN THE AMBIENT TEMP.65°C, USE HEAT-RESISTING CABLES90°C.

• Take care not to generate mechanical sparking when accessing the instrument and peripheral devices in hazardous location.

Note 5. Maintenance and Repair

• The instrument modification or part replacement by other than an authorized representative of Yokogawa Electric Corporation is prohibited and will void KEMA Flameproof Certification.

c. CENELEC ATEX Type of Protection “n”

Caution for CENELEC ATEX Type of Protection “n” type

Note 1. EJX Series differential, gauge, and absolute

pressure transmitters with option code /KN25 for potentially explosive atmospheres:

• Applicable standard: EN 50021, EN 60529

• Type of Protection and Marking Code:

EEx nL IIC T4

• Group: II

• Category: 3G

• Ambient Temperature: –50 to 60°C

• Ambient humidity: 0 to 100%RH

(No condensation)

• Maximum Process Temperature : 120°C

• Enclosure: IP66 and IP67

Note 2. Electrical Data

Ui = 32 Vdc Ci = 1.76 nF Li = 0 µH

Note 3. Installation

• All wiring shall comply with local installation requirements. (refer to the installation diagram)

Note 4. Maintenance and Repair

• The instrument modification or parts replacement by other than authorized representative of Yokogawa Electric Corporation is prohibited and will void Type of Protection “n”.

[Installation Diagram]

2-6

Non-Hazardous

Locations

(Zone2)

Power Supply [EEx nL]

Terminator

Hazardous Locations

Terminator

Hand-

held-

Terminal

Field Instruments

(Passive)

IM 01C25T02-01E

F0202-2.EPS

2. HANDLING CAUTIONS

(2) Electrical Connection

A mark indicating the electrical connection type is stamped near the electrical connection port. These marks are as follows.

T0201.EPS

Location of the mark

F0201.EPS

(3) Installation

WARNING

•All wiring shall comply with local installation requirements and the local electrical code.

• There is no need for a conduit seal in Division 1 and Division 2 hazardous locations because this product is sealed at the factory.

(4) Operation

(6) Name Plate

 Name plate

 Tag plate for intrinsically safe type

No. KEMA 04ATEX1116 X EEx ia IIB/IIC T4 Tamb.:-40 to 60°C MAX PROCESS TEMP.(Tp.):120°C T85°C(Tp.:80°C), T100°C(Tp.:100°C), T120°C(Tp.:120°C) Enclosure: IP66 and IP67 FISCO Field device(IIC) FISCO Field device(IIB) Entity Parameters Ui=17.5V Ui=17.5V Ui=24V Ii=380mA Ii=460mA Ii=250mA Pi=5.32W Pi=5.32W Pi=1.2W Ci=1.76nF Ci=1.76nF Ci=1.76nF Li=0µH Li=0µH Li=0µH

 Tag plate for flameproof type

No. KEMA 03ATEX2570 EEx d IIC T6...T4 IP66 andIP67 TEMP. CLASS T6 T5 T4 MAX PROCESS TEMP.(Tp.) 85 100 120 °C Tam b. -50 to 70 80 75 °C T80°C(Tamb.:40°C, Tp.:80°C),T100°C(Tamb.:60°C, Tp.:100°C), T120°C(Tamb.:80°C, Tp.:120°C) Min.Tamb.:-40°C(for DUST)

WARNING

EEx nL IIC T4 IP66 and IP67 Tam b. -5 0 to 60°C MAX PROCESS TEMP. 120°C Ui=32V Ci=1.76nF Li=0µH

AFTER DE-ENERGIZING, DELAY 5 MINUTES BEFORE OPENING. WHEN THE AMBIENT TEMP.  65°C, USE THE HEAT-RESISTING CABLES  90°C

WARNING

• OPEN CIRCUIT BEFORE REMOVING COVER. INSTALL IN ACCORDANCE WITH THIS USER’S MANUAL

• Take care not to generate mechanical sparking when accessing the instrument and peripheral devices in a hazardous location.

(5) Maintenance and Repair

WARNING

The instrument modification or part replacement by other than an authorized Representative of Yokogawa Electric Corporation is prohibited and will void the certification.

F0202.EPS

MODEL: Specified model code. STYLE: Style code. SUFFIX: Specified suffix code. SUPPLY: Supply voltage. OUTPUT: Output signal. MWP: Maximum working pressure. CAL RNG: Specified calibration range. NO.: Serial number and year of production*1.

TOKYO 180-8750 JAPAN:

The manufacturer name and the address*2.

*1: The first digit in the final three numbers of the

serial number appearing after “NO.” on the name plate indicates the year of production. The following is an example of a serial number for a product that was produced in 2004:

12A819857 432

The year 2004

*2: “180-8750” is the Zip code for the following address.

2-9-32 Nakacho, Musashino-shi, Tokyo Japan

2-7

IM 01C25T02-01E

3. ABOUT FIELDBUS

3.1 Outline

Fieldbus is a wide l y u se d bi-directional digital communication protocol for field devices that enable the simultaneous output to many types of data to the process control system.

The EJX Series Fieldbus communication type employs the specification standardized by The Fieldbus Foundation, and provides interoperability between Yokogawa devices and those produced by other manufacturers. Fieldbus comes with software consisting of three AI function blocks that enable the flexible implementation of systems.

For information on other features, engineering, design, construction work, startup and maintenance of Fieldbus, refer to “Fieldbus Technical Information” (TI 38K03A01-01E).

3.2 Internal Structure of EJX

The EJX contains two virtual field devices (VFD) that share the following functions.

3.2.1 System/network Management VFD

• Sets node addresses and Physical Device tags (PD Tag) necessary for communication.

• Controls the execution of function blocks.

•Manages operation parameters and communication resources (Virtual Communication Relationship: VCR).

• Carry out scaling, damping and square root extraction.

(5)PID function block

• Performs the PID control computation based on the deviation of the measured value from the setpoint.

3.3 Logical Structure of Each

Block

EJX Fieldbus

LCD

Sensor

input

Sensor

System/network management VFD

PD Tag

Node address

Link Master

Function block VFD

LCD

Transducer block

Block tag

Parameters

SENSOR

Transducer block

Block tag

Parameters

Communication

parameters

VCR

Function block

execution schedule

PID function

block (option) AR function

block

IS function

block

IT function

block

SC function

block

AI function

block

AI function

block

AI function

block

Block tag

Parameters

OUT

OUT_D

Output

3.2.2 Function Block VFD

(1)Resource block

•Manages the status of EJX hardware.

•Automatically informs the host of any detected faults or other problems.

(2)SENSOR Transducer block

• Converts sensor output to pressure, static pressure, and capsule temperature signals, and transfers to the AI function blocks.

(3)LCD Transducer block

• Controls the display of the integral indicator.

(4)AI1 function block

• Condition raw data from the Transducer block.

• Output differential pressure, static pressure and capsule temperature signals.

Resource block

Block tag

Parameters

Figure 3.1 Logical Structure of Each Block

Setting of various parameters, node addresses, and PD Tags shown in Figure 3.1 is required before starting operation.

3.4 Wiring System Configuration

The number of devices that can be connected to a single bus and the cable length vary depending on system design. When constructing systems, both the basic and overall design must be carefully considered to achieve optimal performance.

3-1

IM 01C25T02-01E

F0301.EPS

4. GETTING STARTED

Fieldbus is fully dependent upon digital communication protocol and differs in operation from conventional 4 to 20 mA transmission and the BRAIN communication protocol. It is recommended that novice users use field devices in accordance with the procedures described in this section. The procedures assume that field devices will be set up on a bench or in an instrument shop.

4.1 Connection of Devices

The following are required for use with Fieldbus devices:

• Power supply:

Fieldbus requires a dedicated power supply. It is recommended that current capacity be well over the total value of the maximum current consumed by all devices (including the host). Conventional DC current cannot be used as is.

• Terminator:

Fieldbus requires two terminators. Refer to the supplier for details of terminators that are attached to the host.

•Field devices:

Connect Fieldbus communication type EJX. Two or more EJX devices or other devices can be connected.

• Host:

Used for accessing field devices. A dedicated host (such as DCS) is used for an instrumentation line while dedicated communication tools are used for experimental purposes. For operation of the host, refer to the instruction manual for each host. No other details on the host are given in this manual.

•Cable:

Used for connecting devices. Refer to “Fieldbus Technical Information” (TI 38K03A01-01E) for details of instrumentation cabling. For laboratory or other experimental use, a twisted pair cable two to three meters in length with a cross section of

0.9 mm2 or more and a cycle period of within 5 cm (2 inches) may be used. Termination processing depends on the type of device being deployed. For EJX, use an M4 screw terminal claw. Some hosts require a connector.

Refer to Yokogawa when making arrangements to purchase the recommended equipment.

Connect the devices as shown in Figure 4.1. Connect the terminators at both ends of the trunk, with a minimum length of the spur laid for connection.

The polarity of signal and power must be maintained.

Fieldbus power supply

Terminator

Figure 4.1 Cabling

EJX

HOST

Terminator

F0401.EPS

NOTE

No CHECK terminal is used for Fieldbus communication EJX. Do not connect the field indicator and check meter.

Before using a Fieldbus configuration tool other than the existing host, confirm it does not affect the loop functionality in which all devices are already installed in operation. Disconnect the relevant control loop from the bus if necessary.

IMPORTANT

Connecting a Fieldbus configuration tool to a loop with its existing host may cause communication data scrambling resulting in a functional disorder or a system failure.

4-1

IM 01C25T02-01E

4. GETTING STARTED

4.2 Host Setting

To activate Fieldbus, the following settings are required for the host.

IMPORTANT

Do not turn off the power immediately after setting. When the parameters are saved to the EEPROM, the redundant processing is executed for an improvement of reliability. If the power is turned off within 60 seconds after setting is made, the modified parameters are not saved and the settings may return to the original values.

Table 4.1 Operation Parameters

Symbol Parameter Description and Settings

V (ST)

V (MID)

V (MRD)

V (FUN)

V (NUN)

Slot-Time

Minimum-Inter-PDUDelay

Maximum-ReplyDelay

First-Unpolled-Node

Number-ofconsecutiveUnpolled-Node

Indicates the time necessary for immediate reply of the device. Unit of time is in octets (256 µs). Set maximum specification for all devices. For EJX, set a value of 4 or greater.

Minimum value of communication data intervals. Unit of time is in octets (256 µs). Set the maximum specification for all devices. For EJX, set a value of 4 or greater.

The worst case time elapsed until a reply is recorded. The unit is Slottime; set the value so that V (MRD) V (ST) is the maximum value of the specification for all devices. For EJX, the setting must be a value of 12 or greater.

Indicate the address next to the address range used by the host. Set 015 or greater.

Unused address range.

T0401.EPS

0x00

Not used

0x0F

0x10 0x13

0x14

V(FUN)

V(FUN)V(NUN)

0xF7 0xF8

0xFB 0xFC

0xFF

Note 1: Bridge device: A linking device which brings data from one

or more H1 networks. Note 2: LM device: with bus control function (Link Master function) Note 3: BASIC device: without bus control function

Figure 4.2 Available Address Range

Bridge device

LM device

Unused V(NUN)

BASIC device

Default address

Portable device address

F0402.EPS

4-2

IM 01C25T02-01E

4. GETTING STARTED

4.3 Bus Power ON

Turn on the power of the host and the bus. Where the EJX is equipped with an LCD indicator, first all segments are lit, then the display begins to operate. If the indicator is not lit, check the polarity of the power supply.

Using the host device display function, check that the EJX is in operation on the bus.

The device information, including PD tag, Node address, and Device ID, is described on the sheet attached to the EJX. The device information is given in duplicate on this sheet.

Device ID : 594543000CXXXXXXXX PD Tag : PT2001 Device Revision : 3 Node Address : 0xf3 Serial No. : XXXXXXXXXXXXXXXXX Physical Location :

Note:

Our Device Description Files and Capabilities Files available at

http://www.yokogawa.com/fld (English) or http://www.yokogawa.co.jp/Sensor/fieldbus/fieldbus.htm (Japanese)

DEVICE INFORMATION

4.4 Integration of DD

If the host supports DD (Device Description), the DD of the EJX needs to be installed. Check if host has the following directory under its default DD directory.

594543\000C

(594543 is the manufacturer number of Yokogawa Electric Corporation, and 000C is the EJX device

number, respectively.) If this directory is not found, the DD of the EJX has not been included. Create the above directory and copy the DD file (0m0n.ffo, 0m0n.sym) (m, n is a numeral) into the directory. ‘0m’ in the file name shows the device revision, and ‘0n’ shows the DD revision. If you do not have the DD or capabilities files, you can download them from our web site:

http://www.yokogawa.com/fld Once the DD is installed in the directory, the name and

attribute of all parameters of the EJX are displayed. Off-line configuration is possible by using capabilities

files. EJX has two capabilities levels, “1” and “2”.

Device ID : 594543000CXXXXXXXX PD Tag : PT2001 Device Revision : 3 Node Address : 0xf3 Serial No. : XXXXXXXXXXXXXXXXX Physical Location :

Note:

Our Device Description Files and Capabilities Files available at

http://www.yokogawa.com/fld (English) or http://www.yokogawa.co.jp/Sensor/fieldbus/fieldbus.htm (Japanese)

Figure 4.3 Device Information Sheet Attached to EJX

DEVICE INFORMATION

F0403.EPS

If no EJX is detected, check the available address range and the polarity of the power supply. If the node address and PD tag are not specified when ordering, default value is factory set. If two or more EJXs are connected at a time with default value, only one EJX will be detected from the host as EJXs have the same initial address. Separately connect each EJX and set a different address for each.

Select “Capabilities level = 1” when the EJX don’t have LC1(PID function) option.

Select “Capabilities level = 2” when the EJX has LC1(PID function) option.

The capabilities level defines the kind and the number of function blocks that can be used. The table below shows the relation.

The relation between and function blocks that can be used

Capabilities

Level

1 2

AI SC IT IS AR PID

11110

311111

T0402.EPS

4.5 Reading the Parameters

To read EJX parameters, select the AI1 block of the EJX from the host screen and read the OUT parameter. The current selected signal is displayed. Check that MODE_BLOCK of the function block and resource block is set to AUTO, and change the signal input and read the parameter again. A new designated value should be displayed.

4-3

IM 01C25T02-01E

4.6 Continuous Record of Values

If the host has a function that continuously records the indications, use this function to list the indications (values). Depending on the host being used, it may be necessary to set the schedule of Publish (the function that transmits the indication on a periodic basis).

4.7 Generation of Alarm

Generation of an alarm can be attempted from EJX. Block alarm, Output limit alarm, and Update alarm are informed to the host. When generating alarm, a Link Object and a VCR Static Entry need to be set. For details of Link Object and VCR Static Entry, refer to section 5.6.1 Link object and section 5.5.1 VCR Setting.

4. GETTING STARTED

4-4

IM 01C25T02-01E

5. CONFIGURATION

This chapter describes how to adapt the function and performance of the EJX to suit specific applications. Because multiple devices are connected to Fieldbus, it is important to carefully consider the device requirements and settings when configuring the system. The following steps must be taken.

(1)Network design

Determines the devices to be connected to Fieldbus and checks the capacity of the power supply.

(2)Network definition

Determines the tag and node addresses for all devices.

(3)Definition of combining function blocks

Determines how function blocks are combined.

(4)Setting tags and addresses

Sets the PD Tag and node addresses for each device.

(5)Communication setting

Sets the link between communication parameters and function blocks.

(6)Block setting

Sets the parameters for function blocks.

The following section describes in sequence each step of this procedure. The use of a dedicated configuration tool significantly simplifies this procedure. Refer to Appendix 6 when the EJX is used as Link Master.

• Terminator

Fieldbus requires two terminators. Refer to the

supplier for details of terminators that are attached

to the host.

•Field devices

Connect the field devices necessary for instrumenta-

tion. The EJX has passed the interoperability test

conducted by The Fieldbus Foundation. In order to

properly start Fieldbus, it is recommended that the

devices used satisfy the requirements of the above

test.

• Host

Used for accessing field devices. A minimum of one

device with the bus control function is needed.

• Cable

Used for connecting devices. Refer to “Fieldbus

Technical Information” for details of instrumenta-

tion cabling. Provide a cable sufficiently long to

connect all devices. For field branch cabling, use

terminal boards or a connection box as required.

First, check the capacity of the power supply. The power supply capacity must be greater than the sum of the maximum current consumed by all devices to be connected to Fieldbus. The maximum current consumed (power supply voltage 9 V to 32 V) for the EJX is 15 mA (24 mA in Software download operation). The cable used for the spur must be of the minimum possible length.

5.1 Network Design

Select the devices to be connected to the Fieldbus network. The following are essential for the operation of Fieldbus.

• Power supply

5.2 Network Definition

Before connection of devices with Fieldbus, define the Fieldbus network. Allocate PD Tag and node addresses to all devices (excluding such passive devices as terminators).

The PD Tag is the same as the conventional one used for the device. Up to 32 alphanumeric characters may be used for definition. Use a hyphen as a delimiter as required.

The node address is used to specify devices for communication purposes. Because this data is too long for a PD Tag, the host uses the node address in place of the PD Tag for communication. A range of 20 to 247 (or hexadecimal 14 to F7) can be set. The device

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5. CONFIGURATION

(LM device) with bus control function (Link Master function) is allocated from a smaller address number (20) side, and other devices (BASIC device) without bus control function allocated from a larger address number (247) side respectively. Place the EJX in the range of the BASIC device. When the EJX is used as Link Master, place the EJX in the range of the LM device. Set the range of addresses to be used to the LM device. Set the following parameters.

Table 5.1 Parameters for Setting Address Range

Symbol

V (FUN) First-Unpolled-Node

V (NUN) Number-of-

Parameters Description

Indicates the address next to the address range used for the host or other LM device.

Unused address range consecutiveUnpolled-Node

T0501.EPS

The devices within the address range written as “Unused” in Figure 5.1 cannot be used on a Fieldbus. For other address ranges, the range is periodically checked to identify when a new device is mounted. Care must be taken to keep the unused device range as narrow as possible so as to lessen the load on the Fieldbus.

0x00

0x0F 0x10

0x13 0x14

V(FUN)

V(FUN)V(NUN)

0xF7 0xF8

0xFB 0xFC

0xFF

Figure 5.1 Available Range of Node Addresses

Not used

Bridge device

LM device

Unused V(NUN)

BASIC device

Default address

Portable device address

F0501.EPS

To ensure stable operation of Fieldbus, determine the operation parameters and set them to the LM devices. While the parameters in Table 5.2 are to be set, the worst-case value of all the devices to be connected to the same Fieldbus must be used. Refer to the specification of each device for details. Table 5.2 lists EJX specification values.

Table 5.2 Operation Parameter Values of the EJX to be

Set to LM Devices

Symbol Parameters Description and Settings

V (ST) Slot-Time

V (MID) Minimum-Inter-PDU-

Delay

V (MRD) Maximum-Reply-Delay

Indicates the time necessary for immediate reply of the device. Unit of time is in octets (256 µs). Set maximum specification for all devices. For EJX, set a value of 4 or greater.

Minimum value of communication data intervals. Unit of time is in octets (256 µs). Set the maximum specification for all devices. For EJX, set a value of 4 or greater.

T0502.EPS

5.3 Definition of Combining Function Blocks

The input/output parameters for function blocks are combined. As required, they can be combined with the input of the control block. The setting is written to the EJX link object. See “Block setting” in Section 5.6 for the details. It is also possible to read values from the host at proper intervals instead of connecting the EJX block output to other blocks.

The combined blocks need to be executed synchronously with other blocks on the communications schedule. In this case, change the EJX schedule according to the following table. The values in the table are factory-settings.

Table 5.3 Execution Schedule of the EJX Function Blocks

Index Parameters

269

MACROCYCLE_

(SM)

DURATION

276

FB_START_ENTRY.1

(SM)

277 to

FB_START_ENTRY.2

289

FB_START_ENTRY.14

(SM)

Setting (Enclosed is

factory-setting)

Cycle (MACROCYCLE) period of control or measurement. Unit is 1/32 ms. (16000 = 0.5 s)

AI1 block startup time. Elapsed time from the start of MACROCYCLE specified in 1/32 ms. (0 = 0 s)

Not used.

T0503.EPS

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5. CONFIGURATION

A maximum of 30 ms is taken for execution of AI block. For scheduling of communications for combination with the next function block, the execution is so arranged as to start after a lapse of longer than 30 ms. In no case should function blocks of the EJX be executed at the same time (execution time is overlapped).

Figure 5.3 shows an example of schedule based on the loop shown in Figure 5.2.

LIC100

EJX

LI100

EJX

FI100

Figure 5.2 Example of Loop Connecting Function Block of

Two EJX with Other Instruments

Macrocycle (Control Period)

FIC100

FC100

F0502.EPS

5.4 Setting of Tags and Addresses

This section describes the steps in the procedure to set PD Tags and node addresses in the EJX. There are three states of Fieldbus devices as shown in Figure 5.4, and if the state is other than the lowest SM_OPERATIONAL state, no function block is executed. EJX must be transferred to this state when an EJX tag or address is changed.

UNINITIALIZED

(No tag nor address is set)

Tag clear Tag setting

INITIALIZED

(Only tag is set)

Address clear

SM_OPERATIONAL

(Tag and address are retained, and

the function block can be executed.)

Figure 5.4 Status Transition by Setting PD Tag and Node

Address

Address setting

F0504.EPS

LI100

OUT

Commu-

nication

Schedule

Figure 5.3 Function Block Schedule and Communication

Schedule

LIC100

BKCAL_IN

FI100

OUT

CAS_IN

FIC100

BKCAL_IN

Unscheduled

Communication

BKCAL_OUT

FC100

BKCAL_OUT

Scheduled Communication

F0503.EPS

When the control period (macrocycle) is set to more than 4 seconds, set the following intervals to be more than 1% of the control period.

- Interval between “end of block execution” and “start of sending CD from LAS”

- Interval between “end of block execution” and “start of the next block execution”

EJX has a PD Tag (PT2001) and node address (245, or hexadecimal F5) that are set upon shipment from the factory unless otherwise specified. To change only the node address, clear the address once and then set a new node address. To set the PD Tag, first clear the node address and clear the PD Tag, then set the PD Tag and node address again.

Devices whose node addresses have been cleared will have the default address (randomly chosen from a range of 248 to 251, or from hexadecimal F8 to FB). At the same time, it is necessary to specify the device ID in order to correctly specify the device. The device ID of the EJX is 594543000Cxxxxxxxx. (The xxxxxxxx at the end of the above device ID is a total of 8 alphanumeric characters.)

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5. CONFIGURATION

5.5 Communication Setting

To set the communication function, it is necessary to change the database residing in SM-VFD.

5.5.1 VCR Setting

Set VCR (Virtual Communication Relationship), which specifies the called party for communication and resources. EJX has 33 VCRs whose application can be changed, except for the first VCR, which is used for management.

EJX has VCRs of four types: Server(QUB) VCR

A Server responds to requests from a host. This communication needs data exchange. This type of communication is called QUB (Queued Usertriggered Bidirectional) VCR.

Source (QUU) VCR

A Source multicasts alarms or trends to other devices. This type of communication is called QUU (Queued User-triggered Unidirectional) VCR.

Publisher (BNU) VCR

A Publisher multicasts AI block output to another function block(s). This type of communication is called BNU (Buffered Network-triggered Unidirectional) VCR.

Subscriber (BNU) VCR

A Subscriber receives output of another function block(s) by PID block.

A Server VCR is capable to responding to requests from a Client (QUB) VCR after the Client successfully initiates connection to the Server. A Source VCR transmits data without established connection. A Sink (QUU) VCR on another device can receive it if the Sink is configured so. A Publisher VCR transmits data when LAS requests so. An explicit connection is established from Subscriber (BNU) VCR(s) so that a Subscriber knows the format of published data.

Each VCR has the parameters listed in Table 5.4. Parameters must be changed together for each VCR because modification of individual parameters may cause inconsistent operation.

Table 5.4 VCR Static Entry

Sub-

index

1 FasArTypeAndRole

2 FasDllLocalAddr

3 FasDllConfigured

4 FasDllSDAP

5 FasDllMaxConfirm

6 FasDllMaxConfirm

7 FasDllMaxDlsduSize

8 FasDllResidual

9 FasDllTimelinessClass

10 FasDllPublisherTime

11 FasDllPublisher

Parameter Description

RemoteAddr

DelayOnConnect

DelayOnData

ActivitySupported

WindowSize

SynchronizaingDlcep

Indicates the type and role of communication (VCR). The following 4 types are used for EJX. 0x32: Server (Responds to

requests from host.)

0x44: Source (Transmits

alarm or trend.)

0x66: Publisher (Sends AI

block output to other blocks.)

0x76: Subscriber (Receives

output of other blocks by PID block.)

Sets the local address to specify VCR in EJX. A range of 20 to F7 in hexadecimal.

Sets the node address of the called party for communication and the address (DLSAP or DLCEP) used to specify VCR in that address. For DLSAP or DLCEP, a range of 20 to F7 in hexadecimal is used. Addresses in Subindex 2 and 3 need to be set to the same contents of the VCR as the called party (local and remote are reversed).

Specifies the quality of communication. Usually, one of the following types is set. 0x2B: Server 0x01: Source (Alert) 0x03: Source (Trend) 0x91: Publisher/Subscriber

To establish connection for communication, a maximum wait time for the called party's response is set in ms. Typical value is 60 secounds (60000).

For request of data, a maximum wait time for the called party's response is set in ms. Typical value is 60 secounds (60000).

Specifies maximum DL Service Data unit Size (DLSDU). Set 256 for Server and Trend VCR, and 64 for other VCRs.

Specifies whether connection is monitored. Set TRUE (0xff) for Server. This parameter is not used for other communication.

Not used for EJX. Not used for EJX.

Not used for EJX.

T0504-1.EPS

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5. CONFIGURATION

Sub-

index

12 FasDllSubsriberTime

13 FasDllSubscriber

14 FmsVfdId

15 FmsMaxOutstanding

16 FmsMaxOutstanding

17 FmsFeatures

Parameter

WindowSize

SynchronizationDlcep

ServiceCalling

ServiceCalled

Supported

Description

Not used for EJX.

Sets VFD for EJX to be used.

0x1: System/network

management VFD

0x1234: Function block

VFD

Set 0 to Server. It is not used for other applications.

Set 1 to Server. It is not used for other applications.

Indicates the type of services in the application layer. In the EJX, it is automatically set according to specific applications.

T0504-2.EPS

33 VCRs are factory-set as shown in the table below.

Table 5.5 VCR List

Index

(SM)

293 For system management (Fixed)1 294 Server (LocalAddr = 0xF3)2 295 Server (LocalAddr = 0xF4)3 296 Server (LocalAddr = 0xF7)4 297 Trend Source (LocalAddr = 0x07,

298 Publisher for AI1 (LocalAddr = 0x20)6 299

300 Server (LocalAddr = 0xF9)8 301 Publisher for AI2 (LocalAddr = 0x21)9

302 to 315

VCR

Number

Factory Setting

Remote Address=0x111)

Alert Source (LocalAddr = 0x07, Remote Address=0x110)

Not used.10 to 33

T0505.EPS

5.5.2 Function Block Execution Control

According to the instructions given in Section 5.3, set the execution cycle of the function blocks and schedule of execution.

5.6 Block Setting

Set the parameter for function block VFD.

5.6.1 Link Object

A link object combines the data voluntarily sent by the function block with the VCR. The EJX has 40 link objects. A single link object specifies one combination. Each link object has the parameters listed in Table 5.6. Parameters must be changed together for each VCR because the modifications made to each parameter may cause inconsistent operation.

Table 5.6 Link Object Parameters

Sub-

index

1 LocalIndex

2 VcrNumber

3RemoteIndex 4 ServiceOperation

5 StaleCountLimit

Set link objects as shown in Table 5.7.

Table 5.7 Factory-Settings of Link Objects (example)

Index Link Object # Factory Settings

30000 AI1.OUT → VCR#61 30001 Trend → VCR#52 30002 Alert → VCR#73 30003 AI2.OUT → VCR#94

30004 to

30039

Parameters Description

Sets the index of function block parameters to be combined; set “0” for Trend and Alert.

Sets the index of VCR to be combined. If set to “0”, this link object is not used.

Not used in EJX. Set to “0”. Set one of the following.

Set only one each for link object for Alert or Trend. 0: Undefined 2: Publisher 3: Subscriber 6: Alert 7: Trend

Set the maximum number of consecutive stale input values which may be received before the input status is set to BAD. To avoid the unnecessary mode transition caused when the data is not correctly received by subscriber, set this parameter to “2” or more.

T0506.EPS

Not used5 to 40

T0507.EPS

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5. CONFIGURATION

5.6.2 Trend Object

It is possible to set the parameter so that the function block automatically transmits Trend. EJX has seven Trend objects, six of which are used for Trend in analog mode parameters and one is used for Trend in discrete mode parameter. A single Trend object specifies the trend of one parameter.

Each Trend object has the parameters listed in Table

5.8. The first four parameters are the items to be set.

Before writing to a Trend object, it is necessary to release the WRITE_LOCK parameter.

Table 5.8 Parameters for Trend Objects

Sub-

index

1 Block Index

2 Parameter Relative

3 Sample Type

4 Sample Interval

5 Last Update

6 to 21 List of Status

21 to 37 List of Samples

Parameters

Index

Seven trend objects are factory-set as shown Table 5.9.

Description

Sets the leading index of the function block that takes a trend.

Sets the index of parameters taking a trend by a value relative to the beginning of the function block. In the EJX AI block, the following three types of trends are possible. 7: PV 8: OUT 19: FIELD_VAL

Specifies how trends are taken. Choose one of the following 2 types:

1: Sampled upon

execution of a function block.

2: The average value is

sampled.

Specifies sampling intervals in units of 1/32 ms. Set the integer multiple of the function block execution cycle.

The last sampling time. Status part of a sampled

parameter. Data part of a sampled

parameter.

T0508.EPS

SMIB

(System Management Information Base)

NMIB

(Network Management Information Base)

Link object

VCR

Resource block

FBOD

#3 #4

Transducer block

#1 #2

AI1 OUT

AI2 OUT

Alert

Trend

EJX

DLSAP DLCEP

Fieldbus Cable

Figure 5.5 Example of Default Configuration

0xF8 0xF3 0xF4 0xF7

Host 1

Host 2

0xF9

Device 1

0x20 0x21

Device 2

0x07

F0505.EPS

5.6.3 View Object

This object forms a group of parameters in a block. One advantage brought by forming groups of parameters is the reduction of load for data transactions. View Object has the parameters listed in Table 5.11 to

5.14. Purpose of View Objects is shown in Table 5.10.

Table 5.10 Purpose of Each View Object

Description

VIEW_1

VIEW_2

VIEW_3 VIEW_4

Set of dynamic parameters required by operator for plant operation. (PV, SV, OUT, Mode etc.)

Set of static parameters which need to be shown to plant operator at once. (Range etc.)

Set of all the dynamic parameters. Set of static parameters for configuration or

maintenance.

T0510.EPS

Table 5.9 Trend Object are Factory-Set

Index Parameters Factory Settings

32000 to

32005 32006 Not used.TREND_DIS.1

TREND_FLT.5

Not used.TREND_FLT.1 to

T0509.EPS

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Table 5.11 View Object for Resource Block

Relative

Index

Parameter Mnemonic

1ST_REV 2

VIEW1VIEW2VIEW

22 2TAG_DESC 3STRATEGY 4 ALERT_KEY 5MODE_BLK 4 6 BLOCK_ERR 2 7 RS_STATE

11 8 TEST_RW 9DD_RESOURCE

10 MANUFAC_ID

11 DEV_TYPE

12 DEV_REV 13 DD_REV 14 GRANT_DENY

2 15 HARD_TYPES 16 RESTART 17 FEATURES 18 FEATURE_SEL

2 19 CYCLE_TYPE 20 CYCLE_SEL

2 21 MIN_CYCLE_T 22 MEMORY_SIZE 23 NV_CYCLE_T 24 FREE_SPACE

425 FREE_TIME 26 SHED_RCAS 27 SHED_ROUT

4 4

128 FAULT_STATE 29 SET_FSTATE 30 CLR_FSTATE 31 MAX_NOTIFY 32 LIM_NOTIFY 33 CONFIRM_TIME 34 WRITE_LOCK

1 4

1 35 UPDATE_EVT 36 BLOCK_ALM 37 ALARM_SUM

8 38 ACK_OPTION 39 WRITE_PRI 1 40 WRITE_ALM 41

ITK_VER SOFT_REV

SOFT_DESC

43 44

SIM_ENABLE_MSG

45 DEVICE_STATUS_1

4 2

VIEW

2 1

4 2 1 1

4 2

T0511-1.EPS

Relative

Index

Parameter Mnemonic

46 DEVICE_STATUS_2 47 DEVICE_STATUS_3 48 DEVICE_STATUS_4 49 DEVICE_STATUS_5 50 DEVICE_STATUS_6 51 DEVICE_STATUS_7 52

DEVICE_STATUS_8 SOFTDWN_PROTECT

53 54

SOFTDWN_FORMAT

SOFTDWN_COUNT SOFTDWN_ACT_AREA

SOFTDWN_MOD_REV

SOFTDWN_ERROR

Totals (# bytes)

5. CONFIGURATION

VIEW1VIEW2VIEW

4 4 4 4 4 4 4

22 30 73 35

VIEW

1 1 2

T0511-2.EPS

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Table 5.12 View Object for SENSOR Transducer Block

Relative

Index

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53

Parameter Mnemonic

ST_REV

TAG_DESC

STRATEGY

ALERT_KEY

MODE_BLK

BLOCK_ERR

UPDATE_EVT

BLOCK_ALM

TRANSDUCER_DIRECTORY

TRANSDUCER_TYPE XD_ERROR COLLECTION_DIRECTORY PRIMARY_VALUE_TYPE PRIMARY_VALUE PRIMARY_VALUE_RANGE CAL_POINT_HI CAL_POINT_LO CAL_MIN_SPAN CAL_UNIT SENSOR_TYPE SENSOR_RANGE SENSOR_SN SENSOR_CAL_METHOD SENSOR_CAL_LOC SENSOR_CAL_DATE SENSOR_CAL_WHO SENSOR_ISOLATOR_MTL SENSOR_FILL_FLUID SECONDARY_VALUE SECONDARY_VALUE_UNIT CAL_DEVIATION_HI CAL_DEVIATION_LO EXTERNAL_ZERO_TRIM PRIMARY_VALUE_FTIME TERTIARY_VALUE SP_VALUE_TYPE SP_VALUE_RANGE CAL_SP_POINT_HI CAL_SP_POINT_LO CAL_SP_MIN_SPAN CAL_SP_UNIT CAL_SP_DEVIATION_HI CAL_SP_DEVIATION_LO SP_VALUE_FTIME ATM_PRESS CLEAR_CAL CAP_TEMP_VAL CAP_TEMP_RANGE AMP_TEMP_VAL AMP_TEMP_RANGE MODEL SPECIAL_ORDER_ID MANUFAC_DATE

123_13_24_1 4_2 4_3 4_4

4 2

2 1

VIEW

2 2

1 4 2

2 1

11 4 4

4 2 2

32 2 2

5 2 4 4

5 2

11 4 4

2 4 4 4 4

16 32

5. CONFIGURATION

Relative

Index

54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98

99 100 101 102 103 104 105

Parameter Mnemonic

CAP_GASKET_MTL FLANGE_MTL D_VENT_PLUG FLANGE_TYPE REM_SEAL_ISOL_MTL FLANGE_SIZE REM_SEAL_NUM REM_SEAL_FILL_FLUID REM_SEAL_TYPE ALARM_SUM AUTO_RECOVERY MS_CODE DIAG_MODE DIAG_PERIOD DIAG_PRI DIAG_ERR DIAG_H_ALM DIAG_L_ALM DIAG_OPTION DIAG_LIM DIAG_COUNT REFERENCE_TIME REFERENCE_X REFERENCE_Y REFERENCE_YH REFERENCE_DPAVG VALUE_TIME VALUE_X VALUE_Y VALUE_YH VALUE_F VALUE_DPAVG TEST_KEY1 TEST_KEY2 TEST_KEY3 TEST_1 TEST_2 TEST_3 TEST_4 TEST_5 TEST_6 TEST_7 TEST_8 TEST_9 TEST_10 TEST_11 TEST_12 TEST_13 TEST_14 TEST_15 TEST_16 TEST_17 Totals (# bytes)

123_13_24_14_2 4_3 4_4

44 548 44

VIEW

8 5 5 5 5 5

12 541 82

106

T0512.EPS

1 1 1 1 1 1 1 1 1

1 2 1

5 8 5 5 5 5

2 2 1 1 1 2 2

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IM 01C25T02-01E

+ 101 hidden pages

YOKOGAWA EJX User's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1. INTRODUCTION

 Regarding This Manual

1.1 Safe Use of This Product

1.2 Warranty

1.3 ATEX Documentation

2. HANDLING CAUTIONS

2.1.1 FM approval

2.1.2 CSA Certification

2.1.3 CENELEC ATEX Certification

3. ABOUT FIELDBUS

3.1 Outline

3.2 Internal Structure of EJX

3.2.1 System/network Management VFD

3.2.2 Function Block VFD

3.4 Wiring System Configuration

4. GETTING STARTED

4.1 Connection of Devices

4.2 Host Setting

4.3 Bus Power ON

4.4 Integration of DD

4.5 Reading the Parameters

4.6 Continuous Record of Values

4.7 Generation of Alarm

5. CONFIGURATION

5.1 Network Design

5.2 Network Definition

5.3 Definition of Combining Function Blocks

5.4 Setting of Tags and Addresses

5.5 Communication Setting

5.5.1 VCR Setting

5.5.2 Function Block Execution Control

5.6 Block Setting

5.6.1 Link Object

5.6.2 Trend Object

5.6.3 View Object