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Bronkhorst®

Instruction Manual EL-PRESS™

9.17.101I

2.7

Fieldbus connection

If the instrument is provided with a dedicated fieldbus interface, it can be operated digitally in a fieldbus system, using

RS485 communication. In FLOW-BUS, Modbus and DeviceNet™ systems, the fieldbus connector can also be used to power

the instrument. In other fieldbus systems, the instrument is always powered through the 9-pin D-sub power connector on

the side.

Never

power the instrument simultaneously from

two different power sources

(e.g. fieldbus and Plug-in Power Supply).

Doing so will damage the printed circuit board irreparably.

Always check the total power consumption of your instruments before connecting them to a fieldbus system. Do not exceed

the maximum power of the power supply unit.

If you need assistance with setting up a bus configuration, contact your Bronkhorst representative for information.

2.7.1

FLOW-BUS

FLOW-BUS is a Bronkhorst® designed fieldbus, based on RS-485 technology, for digital communication between devices,

offering the possibility of host-control by a Windows computer.

Characteristics:

Baud rate 187500 (default) or 400000 Baud

+15…24 Vdc supply voltage

Easy installation and communication with other Bronkhorst® devices

Automatic node search and bus optimization (gap fixing)

RS-232 communication (

ProPar

) with Windows computer (local host)

Connection of up to 120 instruments on a single bus

Maximum bus length: 600 m

Consult

Instruction manual FLOW-BUS interface

(document no. 9.17.024) for more information about setting up a

FLOW-BUS network.

2.7.2

Modbus

Modbus is a 3-wire, RS-485-based fieldbus communication system for parameter value exchange. In this system each

instrument/device is equipped with a micro-controller for its own dedicated task. The instrument behaves as a slave, which

means all communication (instructions and readout) is initiated by a master device on the Modbus system.

Characteristics:

Baud rate selectable between 9600 and 256000 Baud (default: 19200 Baud)

+15…24 Vdc supply voltage

Connection of up to 247 instruments on a single bus

Supports RTU and ASCII protocols

Consult

Instruction manual Modbus interface

(document no. 9.17.035) for more information about setting up a

Modbus network.

2.7.3

PROFIBUS DP

PROFIBUS DP is a 2-wire, RS-485-based industrial data communication standard (fieldbus) which allows automation

components (e.g. sensors, actuators and controllers) to exchange information.

Consult

Instruction manual PROFIBUS DP interface

(document no. 9.17.025) for more information about setting up a

PROFIBUS DP network.

2.7.4

DeviceNet™

The DeviceNet™ interface offers a direct connection to a DeviceNet™ network, according to the mass flow controller profile

specified by the ODVA. The Bronkhorst® DeviceNet™ instrument is a Group 2 Only Server device whose messages comply

with the Controlled Area Network (CAN) 2.0A standard and with the DeviceNet™ protocol.

Consult

Instruction manual DeviceNet™ interface

(document no. 9.17.026) for more information about setting up a

DeviceNet™ network.

Содержание EL-PRESS Metal sealed

Страница 1: ...ENTION Pleaseread this documentcarefully beforeinstalling and operating theproduct Notfollowing theguidelines could resultin personalinjury and ordamageto theequipment EL PRESS series Digital Pressure Meters and Controllers Instruction Manual ...

Страница 2: ...mationwill facilitatetheuseoftheinstrument and or contributetoitsoptimal performance Additional informationavailableontheinternet or from your Bronkhorst representative Receipt of equipment Check the outside packaging box for damage incurred during shipment If the box is damaged the local carrier must be notified at once regarding his liability if so required At the same time a report should be su...

Страница 3: ... precautions This product is intended for use by qualified personnel who recognize shock hazards and are familiar with the safety precautions required to avoid possible injury Read the operating information carefully before using the product Before operating make sure the line cord is connected to a properly grounded power receptacle Inspect the connecting cables for cracks or breaks before each u...

Страница 4: ...Bronkhorst Instruction Manual EL PRESS 9 17 101I 4 ...

Страница 5: ...id connection 14 2 6 Electrical connection 15 2 7 Fieldbus connection 15 FLOW BUS 2 7 1 15 Modbus 2 7 2 15 PROFIBUS DP 2 7 3 15 DeviceNet 2 7 4 16 EtherCAT 2 7 5 16 PROFINET 2 7 6 16 2 8 Communication interface 17 RS232 communication 2 8 1 17 Fieldbus communication 2 8 2 18 E 8000 power supply readout and control 2 8 3 18 BRIGHT readout and control 2 8 4 19 Operation 3 19 3 1 Powering up and power...

Страница 6: ...4 31 4 1 Special parameters 32 Default control mode 4 1 1 32 4 2 Measurement and control 33 Advanced measurement and control 4 2 1 34 4 3 Device identification 35 4 4 Alarms 37 4 5 Network configuration 39 4 6 Master slave configuration FLOW BUS 41 Troubleshooting and service 5 41 5 1 Errors and warnings 41 5 2 Restoring factory settings 41 5 3 Common issues 43 5 4 Service 44 Returns 6 44 6 1 Remo...

Страница 7: ...euseoftheequipment withregardtosuitability intendeduse cleaningandcorrosionresistanceofthe appliedmaterialsagainst theprocessedmedialiessolelywiththeenduser Whereappropriate thisdocument recommendsor prescribessafetymeasurestobetakenwithrespect tomediausageor workingwiththedescribedequipment under thespecifiedconditions Theenduser isresponsiblefor takingthenecessary safetyprecautionsandproper useo...

Страница 8: ... acts on this chip the diaphragm flexes and the resistor values of the bridge alter in proportion to the pressure The measuring cell is separated from the external pressure by a thin sensitive stainless steel diaphragm and the sealed off cavity between diaphragm and cell is filled with oil Thestandardoil fillingofthesensor isflammable Bronkhorst advisestotakeadequatesecurityprecautionswhenoxygen o...

Страница 9: ...hat serve as an inlet valve and a relief valve respectively Opening the inlet valve increases the pressure in the outgoing conduit whilst opening the relief valve decreases it The pressure sensor measures the pressure in the outgoing conduit P2 Both valves are driven by a controller which gets its input from the pressure sensor 1 4 Calibration The EL PRESS is factory calibrated Periodical inspecti...

Страница 10: ...agram Analog RS232 9 16 119 Hook up diagram EtherNet IP 9 16 215 Hook up diagram CANopen 9 16 217 Hook up diagram DeviceNet 9 16 122 Hook up diagram EtherCAT 9 16 124 Hook up diagram FLOW BUS 9 16 120 Hook up diagram Modbus ASCII RTU 9 16 123 Hook up diagram Modbus TCP 9 16 234 Hook up diagram PROFIBUS DP 9 16 121 Hook up diagram PROFINET 9 16 147 Hook up diagram custom bus I O configurations 9 16...

Страница 11: ...e technical properties of the instrument as ordered The actual properties of your instrument can be retrieved with the diagram below Notes 1 factory selected based on requested pressure range 2 not available for P 800 series Process Pressure Controller or pressures higher than 100 bar 3 RELIEF connection 3rd digit only for P 800 series ...

Страница 12: ...ar g 50 C ED compound1 max 30 bar g C2F6 Freon 116 C2H2 Acetylene 2 C2H4 Ethylene max 10 bar g 3 max 10 bar g max 10 bar g C2H6 Ethane C3H6 2 Propylene max 10 bar g max 58 bar g 3 C3H8 Propane Cl2 Chlorine He Helium H2 Hydrogen H2S Hydrogensulfide Kr Krypton NF3 Nitrogentrifluoride NH3 Ammonia NO Nitric oxide N2 Nitrogen N2O Nitrous oxide max 20 bar g 50 C O2 Oxygen SF6 Sulfur hexafluoride SiH4 Si...

Страница 13: ...sureisspecifiedonthedevicewitharedlabel if thislabel ismissingor ifthetest pressureisinsufficient the devicemust not beusedandshouldbereturnedtothefactory Beforeinstallation makesurethat thepressureratingiswithinthelimitsofthenormal processconditionsandthat the testedpressureisinaccordancewiththesafetyfactor ofyour application Disassemblingthedeviceand or replacingpartswill invalidatethetest press...

Страница 14: ...iagram The factory installed 9 pin D sub settings are indicated in the hook up diagram Make sure that the power supply is suitable for the power ratings as indicated in the hook up diagram and that double or reinforced insulation is used for the power supply EL PRESS instruments are powered with 15 24 Vdc depending on the fieldbus system if applicable Toprevent damageasaresult ofreversedpolarity t...

Страница 15: ...th 600 m Consult Instruction manual FLOW BUS interface document no 9 17 024 for moreinformationabout settingupa FLOW BUS network 2 7 2 Modbus Modbus is a 3 wire RS 485 based fieldbus communication system for parameter value exchange In this system each instrument device is equipped with a micro controller for its own dedicated task The instrument behaves as a slave which means all communication in...

Страница 16: ...mmunication model and application view of PROFIBUS DP Consult Instruction manual PROFINETinterface document no 9 17 095 for moreinformationabout settingupa PROFINET network 2 8 Communication interface The standard 9 pin D sub connector provides the following communication interfaces Analog 0 5 Vdc 0 10 Vdc 0 20 mA or 4 20 mA Digital RS 232 ProPar or RS 485 FLOW BUS or Modbus Additionally the instr...

Страница 17: ...wnloadedfrom theAccessories and software sectionontheBronkhorst product pages www bronkhorst com products 2 8 2 Fieldbus communication The instrument can be connected to a fieldbus system with the optional fieldbus connector on top At the same time RS 232 communication with a Windows computer is possible through the 9 pin D sub connector on the side of the instrument This example uses the followin...

Страница 18: ...ctionontheBronkhorst product pages www bronkhorst com products 2 8 4 BRIGHT readout and control Most digital parameters and functions are accessible via the display interface and control buttons of a BRIGHT readout and control module type B1 or B2 When a BRIGHT module is installed no other RS 232 connection can be established with the instrument This example uses the following components EL PRESS ...

Страница 19: ... continuously the instrument is ready for operation After powering up the control valve closes normally open or stays closed normally closed The valve stays closed until the instrument receives a setpoint from the active setpoint source The internal PID controller then immediately opens the control valve until the measured pressure matches the setpoint It maintains the resulting pressure rate unti...

Страница 20: ...communication error EtherCAT Instrument is not in OP mode PROFINET No application relation established blink 0 2 sec on 0 2 sec off FLOW BUS Waiting for communication PROFIBUSDP Not used Modbus Not used DeviceNet No bus power EtherCAT Not used PROFINET Not used long flash 2 sec on 0 1 sec off FLOW BUS Not used PROFIBUSDP Requested parameter not available Modbus Not used DeviceNet Serious communica...

Страница 21: ...n timeout e g communication cable disconnected n a on red continuous n a No link Ethernetindicators RJ 45 connection sockets on instruments with a EtherCAT or PROFINET interface have two integrated LED indicators with standard Ethernet functionality Amber Ethernet speed Green Ethernet link activity 3 5 1 2 DeviceNet indications DeviceNet instruments have two bi color LEDs green red to indicate net...

Страница 22: ...epeating sequence of patterns where each pattern indicates a function All indications in this sequence are continuous Each pattern is shown for a number of seconds in the table below the column Holdtime indicates the time frame within the sequence where the LEDs show the associated pattern To start a function release the switch when the LEDs show the pattern of the required function green red Hold...

Страница 23: ... 2 3 Control mode readout change Reading controlmode By briefly pressing the switch 2 times with intervals of up to 1 second in normal operation mode the instrument shows its current control mode with a series of consecutive LED indication patterns The number of flashes corresponds to the current value of parameter Control Mode see Special parameters Step Pattern Indication 1 Green number of flash...

Страница 24: ...ading network settings By briefly pressing the switch 3 times with intervals of up to 1 second in normal operation mode the instrument shows its current node address and baud rate with a series of consecutive LED indication patterns Step Pattern Indication 1 Green number of flashes indicates the tens of the node address 2 Red number of flashes indicates the units of the node address 3 Green and re...

Страница 25: ...ashes Release the switch as soon as the required value is reached In case you lose count keep the switch pressed and wait until the flash count reaches its maximum and restarts On completion of a step the instrument automatically advances to the next step When all required steps have been completed the instrument returns to its normal operation mode If the switch is not pressed within 60 seconds a...

Страница 26: ...Modbus Fieldbus specific Digital RS485 FLOW BUS Modbus PROFIBUS DP DeviceNet Ethernet PROFINET EtherCAT Thecommunicationstandards analoganddigital andfieldbusinterface ifapplicable arespecifiedat orderingtime i e Inanalogmode theinstrument isset tothespecifiedvoltage current range Thededicatedfieldbusconnectiononlyprovidesthespecifiedfieldbusinterface Using analog and digitalinterfacessimultaneous...

Страница 27: ...on either self made or with a third party SCADA program it is possible to create an easy way of data exchange between the flow meter controller and a Windows application For instance a cell in a Microsoft Excel spreadsheet can be linked to the measured value of an instrument FlowDDE updates the cell automatically when the measured value changes FlowDDE uses specific parameter numbers for communica...

Страница 28: ...he FlowWare toolkit provides functionality for monitoring and operating digital instruments FlowPlot FlowView and selection of the active fluid and configuration of the fieldbus connection if applicable For instruments that support the definition and use of multiple fluids FlowTune can be used to define and store fluids in the instrument and select the active fluid Digital instrument parameters ar...

Страница 29: ...ble operating parameters with their data types AnEDS filefor Bronkhorst instrumentscanbedownloadedfrom theproduct pagesontheBronkhorst website www bronkhorst com products EtherCAT Instruments in an EtherCAT system can be monitored and operated using third party software as a master device such as BRANDNAME_SYCON by Hilscher GmbH To configure a device a so called ESI file EtherCAT Slave Information...

Страница 30: ...nge x Minimum value of the range y Maximum value of the range FlowDDE Parameter number within FlowDDE FLOW BUS Within the FLOW BUS protocol ProPar when using RS 232 communication parameters are identified by a unique combination of a process number and a parameter number Pro Process number Par Parameter number Consult theRS 232manual document no 9 17 027 for detailedinformation Modbus In the Modbu...

Страница 31: ...eset Alarm Enable or Reset Counter Enable Makesurethevalueisaccepted bysendingvalue0 first Wink Type Access Range FlowDDE FLOW BUS Modbus Unsigned char 27 W 0 9 1 0 0 0x0000 1 Sending any text string value between 1 and 9 to this parameter makes the indication LEDs if present blink for a couple of seconds This can be useful in order to identify a specific device in a large fieldbus network Modbus ...

Страница 32: ...O Status Type Access Range FlowDDE FLOW BUS Modbus Unsigned char RW 0 255 86 114 11 0x0E4B 3660 The instrument is set to accept a setpoint from either an analog or a digital source Although this setting can be changed with parameter Control Mode the instrument usually returns to its default control mode at every power up or reset The default control mode can be set with parameter IO Status to chan...

Страница 33: ...xA101 41217 41218 Floating point variant of Measure Fmeasure shows the measured value in the capacity unit for which the instrument is set The instrument uses parameters Capacity Capacity0 CapacityUnit and Sensor Type to calculate Fmeasure Fsetpoint Type Access Range FlowDDE FLOW BUS Modbus Float RW 0 3 4E 38 206 33 3 0xA119 0xA11A 41241 41242 Floating point variant of Setpoint Fsetpoint shows the...

Страница 34: ...owDDE FLOW BUS Modbus Unsigned char RW 0 255 22 1 14 0x002E 47 The following sensor types are supported Instrument type Value Description Controller 0 Pressure counter disabled 1 Liquid volume 2 Liquid gas mass 3 Gas volume 4 Other counter disabled Sensor 128 Pressure counter disabled 129 Liquid volume 130 Liquid gas mass 131 Gas volume 132 Other counter disabled 4 3 Device identification User Tag...

Страница 35: ...ss Range FlowDDE FLOW BUS Modbus Unsigned char 6 R 90 113 1 0xF108 0xF10A 61705 61707 Device type information string this parameter contains an abbreviation referring to the identification number 4 4 Alarms Alarm settingsaremost easilyaccessibleusingFlowPlot or FlowViewor aBronkhorst readout andcontrol unit The built in alarm functionality can be used to handle different alarm types system errors ...

Страница 36: ...r up alarm Alarm possibly caused by a power dip If combined with bit 2 or 3 Response alarm Difference between Measure and Setpoint too big 6 64 Master slave alarm Setpoint out of limits caused by Slavefactor 7 128 Hardware alarm Hardware error AlarmDelayTime Type Access Range FlowDDE FLOW BUS Modbus Unsigned char RW 0 255 182 97 7 0x0C27 3112 This value represents the time in seconds the alarm act...

Страница 37: ... during an alarm until reset Range 0 32000 represents 0 100 setpoint Default value 0 ResetAlarmEnable Type Access Range FlowDDE FLOW BUS Modbus Unsigned char RW 0 15 156 97 9 0x0C29 3114 Available reset methods for alarms Up to 4 different methods can be specified convert the value to binary to see which methods are enabled Default value 15 all bits methods enabled The following methods are suppor...

Страница 38: ...00 12000000 125000 250000 500000 Parity 0 0 0 1 2 2 0 Network configuration for EtherCAT and PROFINET is done automatically via the Ethernet protocol Communication viafieldbusconnection RS485 Use the following parameters to configure the instrument for communication via the fieldbus connection Networkparameter settingsfor fieldbuscommunicationcanbeoverruledbytherotaryswitches ifpresent Fieldbus1 A...

Страница 39: ...ldbus system The FLOW BUS protocol however provides a feature to set up a master slave relationship between two instruments The typical behavior of a slave instrument is to automatically set its own setpoint relative to the output measurement value of its master The output value of any instrument connected to a FLOW BUS network is automatically available to all other instruments without extra wiri...

Страница 40: ...e master instrument is multiplied by SlaveFactor 100 to get the slave instrument setpoint In systems other than FLOW BUS via RS 485 SlaveFactor is effective only if Control Mode is set to Analog slave and the analog output signal of the master instrument is redirected to the input of the slave instrument Example master output 80 SlaveFactor 50 slave instrument setpoint 80 x 50 100 40 ...

Страница 41: ...ore the factory settings using the multifunctional switch follow these instructions 1 Make sure electrical power to the instrument is switched off 2 Press and hold the multifunctional switch while powering up the instrument After 4 seconds the red LED starts flashing 0 2 seconds on 0 2 seconds off 3 At that moment which is after 4 to 8 seconds release the switch Changesmadetothenetworksettings bus...

Страница 42: ...and or control valve clogged or blocked Flush fluid system with clean dry air If problem persists contact Bronkhorst Inlet pressure too low Increase inlet pressure System leakage Check system for leaks Measured value or output signal much lower than setpoint Inlet pressure or differential pressure too low Increase inlet pressure Use instrument in conditions it was designed for Piping filters and o...

Страница 43: ...duct for your application Contact sales by e mail sales bronkhorst com For after sales questions our Customer Service Department is available with help and guidance To contact CSD by e mail support bronkhorst com No matter the time zone our experts within the Support Group are available to answer your request immediately or ensure appropriate further action Our experts can be reached at 31 859 02 ...

Страница 44: ...ga Declarationondecontamination form document no9 17 032 canbe downloadedfrom theService Support sectionoftheBronkhorst website www bronkhorst com Important Clearly note on top of the package the customs clearance number of Bronkhorst High Tech B V NL801989978B01 only if applicable otherwise contact your Bronkhorst representative for local arrangements 6 2 Disposal end of lifetime Within the Europ...

Страница 45: ...5 Firmware version 35 Identification number 35 Serial Number 35 User Tag 34 Parameters Master Slave Master Node 39 Slave Factor 40 Parameters Measurement and control Analog Input 33 Controller Hysteresis 33 Fmeasure 33 Fsetpoint 33 Measure 32 Sensor Type 34 Setpoint 33 Setpoint Slope 33 Valve Output 34 Parameters Network configuration Fieldbus1 Address 38 Fieldbus1 Baud Rate 38 Fieldbus1 Parity 38...

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