Vega VEGAFLEX 81 Operating Instructions Manual
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Vega VEGAFLEX 81 Operating Instructions Manual

Tdr sensor for continuous level and interface measurement of liquids
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Operating Instructions

TDR sensor for continuous level and
interface measurement of liquids
VEGAFLEX 81
Modbus and Levelmaster protocol
Coax probe
Document ID: 42283

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Summary of Contents for Vega VEGAFLEX 81

  • Page 1: Operating Instructions

    Operating Instructions TDR sensor for continuous level and interface measurement of liquids VEGAFLEX 81 Modbus and Levelmaster protocol Coax probe Document ID: 42283...

  • Page 2: Table Of Contents

    Set up with the quick setup ..................... 52 Saving the parameter adjustment data ................57 Diagnostics and service Maintenance ........................58 Diagnosis memory ......................58 Status messages ......................59 Rectify faults ........................63 Exchanging the electronics module ................66 VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 3 10.7 Dimensions ........................92 Safety instructions for Ex areas Please note the Ex-specific safety information for installation and op- eration in Ex areas. These safety instructions are part of the operating instructions manual and come with the Ex-approved instruments. Editing status: 2014-03-31 VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 4: About This Document

    This arrow indicates a single action. Sequence of actions Numbers set in front indicate successive steps in a procedure. Battery disposal This symbol indicates special information about the disposal of bat- teries and accumulators. VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 5: For Your Safety

    During work on and with the device the required personal protective equipment must always be worn. Appropriate use VEGAFLEX 81 is a sensor for continuous level measurement. You can find detailed information about the area of application in chapter "Product description". Operational reliability is ensured only if the instrument is properly used according to the specifications in the operating instructions manual as well as possible supplementary instructions.

  • Page 6: Namur Recommendations

    That is why we have introduced an environment management system with the goal of continuously improving company environmental pro- tection. The environment management system is certified according to DIN EN ISO 14001. Please help us fulfill this obligation by observing the environmental instructions in this manual: • Chapter "Packaging, transport and storage" • Chapter "Disposal" VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 7: Product Description

    Go to www.vega.com, "VEGA Tools" and "Instrument search". Enter the serial number. Alternatively, you can access the data via your smartphone: • Download the smartphone app "VEGA Tools" from the "Apple App Store" or the "Google Play Store" VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 8 – Supplementary instructions "GSM/GPRS radio module" (optional) – Supplementary instructions manual "Heating for display and adjustment module" (optional) – Supplementary instructions manual "Plug connector for con- tinuously measuring sensors" (optional) – Ex-specific "Safety instructions" (with Ex versions) – if necessary, further certificates VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 9: Principle Of Operation

    3 Product description Principle of operation Application area The VEGAFLEX 81 is a level sensor with coax probe for continuous level or interface measurement, suitable for applications in liquids. Functional principle - High frequency microwave pulses are guided along a steel cable or level measurement a rod.
  • Page 10 Example: upper medium dielectric constant 2, lower medium at least dielectric constant 12. Gas phase (L3) • Air or gas mixture • Gas phase - dependent on the application, gas pahse does not always exist (d2 = 0) VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 11: Packaging, Transport And Storage

    (Document-ID 27835). VEGACONNECT The interface adapter VEGACONNECT enables the connection of communication-capable instruments to the USB interface of a PC. For parameter adjustment of these instruments, the adjustment software PACTware with VEGA-DTM is required. VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 12 3 Product description You can find further information in the operating instructions "Interface adapter VEGACONNECT" (Document-ID 32628). VEGADIS 81 The VEGADIS 81 is an external display and adjustment unit for VEGA plics sensors. ® For sensors with double chamber housing the interface adapter "DIS- ADAPT" is also required for VEGADIS 81.
  • Page 13 3 Product description You can find further information in the operating instructions "Display and adjustment module with heating" (Document-ID 31708). VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 14: Mounting

    Active measuring component • Process fitting • Process seal Process conditions are particularly: • Process pressure • Process temperature • Chemical properties of the medium • Abrasion and mechanical influences You can find the specifications of the process conditions in chapter "Technical data" as well as on the type label. VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 15: Mounting Instructions

    Fig. 5: Vessel with conical bottom Welding work Before beginning the welding work, remove the electronics module from the sensor. By doing this, you avoid damage to the electronics through inductive coupling. Inflowing medium Do not mount the instruments in or above the filling stream. Make sure that you detect the product surface, not the inflowing product. Fig. 6: Mounting of the sensor with inflowing medium VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 16 The prerequisite is constant temperature and pressure in the vessel. Automatic correction via the reference distance The VEGAFLEX 81 can be equipped optionally with a running time correction via reference distance. The probe can carry out an auto- matic running time correction with it.
  • Page 17 4 Mounting Fig. 7: Measuring ranges - VEGAFLEX 81 with steam compensation Reference plane Probe length L Measuring range Upper dead zone with steam compensation = 450 mm (17.7 in) Lower dead band Reference measurement distance to steam compensation VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 18: Connecting To Power Supply

    (e.g. 1 nF, 1500 V). The low frequency potential equalisation currents are thus suppressed, but the protective effect against high frequency interference signals remains. Connecting Connection technology The voltage supply and signal output are connected via the spring- loaded terminals in the housing. VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 19 4. Remove approx. 10 cm (4 in) of the cable mantle, strip approx. 1 cm (0.4 in) of insulation from the ends of the individual wires 5. Insert the cable into the sensor through the cable entry Fig. 8: Connection steps 5 and 6 - Single chamber housing VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 20 9. Tighten the compression nut of the cable entry gland. The seal ring must completely encircle the cable 10. Reinsert the display and adjustment module, if one was installed 11. Screw the housing cover back on The electrical connection is finished. VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 21: Wiring Plan, Double Chamber Housing

    The connection of an external display and adjustment unit is not pos- sible with this double chamber housing. Terminal compartment MODBUS power supply off on Fig. 12: Terminal compartment 1 USB interface 2 Slide switch for integrated termination resistor (120 Ω) Voltage supply Modbus signal VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 22: Double Chamber Housing With Dis-Adapt

    Fig. 14: View to the plug connector M12 x 1 Pin 1 Pin 2 Pin 3 Pin 4 Contact pin Colour connection ca- Terminal, electronics ble in the sensor module Pin 1 Brown Pin 2 White Pin 3 Blue Pin 4 Black VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 23: Supplementary Electronics

    30 s: • Internal check of the electronics • Indication of the instrument type, hardware and software version, measurement loop name on the display or PC VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 24 As soon as a plausible measured value is found, the corresponding current is outputted to the signal cable. The value corresponds to the actual level as well as the settings already carried out, e.g. factory setting. VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 25: Set Up The Sensor With The Display And Adjustment Module

    The display and adjustment module is powered by the sensor, an ad- ditional connection is not necessary. Fig. 17: Insertion of the display and adjustment module Note: If you intend to retrofit the instrument with a display and adjustment module for continuous measured value indication, a higher cover with an inspection glass is required. VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 26: Adjustment System

    [OK] will not be saved. Switch-on phase After switching on, the VEGAFLEX 81 carries out a short self-test where the device software is checked. The output signal transmits a fault signal during the switch-on phase. The following information is displayed on the display and adjustment module during the startup procedure: •...

  • Page 27: Parameter Adjustment - Quick Setup

    Level measurement Medium - dielectric constant In this menu item, you can define the type of medium (product). Max. adjustment In this menu item, you can enter the max. adjustment for the level. VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 28 Min. adjustment - Interface Carry out the min. adjustment for the interface. To do this, enter the percentage value and the suitable distance value in m for the empty vessel. VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 29: Parameter Adjustment - Extended Adjustment

    For technically demanding measuring points, you can carry out extended settings in "Extended adjustment". Main menu The main menu is divided into five sections with the following func- tions: Setup: Settings, e.g. medium, application, vessel, adjustment, damp- ing, device units, unit SV 2, false signal suppression, linearization Display: Language setting, settings for the measured value indication as well as lighting VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 30 In this menu item you can enter the probe length or have the length determined automatically by the sensor system. When choosing "Yes", then the probe length will be determined automatically. When choosing "No", you can enter the probe length manually. VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 31 This menu item is only available, if you have chosen interface meas- phase urement under the menu item "Application". In this menu item you can enter if there is a superimposed gas phase in your application. VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 32 Setup - Min. adjustment In this menu item you can enter the min. adjustment for the level. With Level interface measurement this is the minimum total level. VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 33 (accept adjustment of the level measure- ment), the current setting will be displayed. If you have selected "No", you can enter the adjustment for the inter- face measurement separately. VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 34 For the socket correction you have to enter the height of the socket above the upper edge of the vessel. If the socket is lower than the up- per edge of the vessel, this value can also be negative. VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 35 Since scaling is very extensive, scaling of the level value was divided into two menu items. Setup - Scaling Level 1 In menu item "Level 1" you define the scaling variable and the scaling unit for the level value on the display, e.g. volume in l. VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 36 0 % and 100 %. In menu item"Current output, size" you determine which measured Setup - Current output Size value the current output refers to. VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 37 In menu item"Current output 2" you specify which measured value the additional current output refers to. The procedure corresponds to the previous settings of the standard current output. See "Setup - Current output". VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 38 This should be done with the lowest possible level so that all potential interfering reflections can be detected. Proceed as follows: Enter the actual distance from the sensor to the product surface. VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 39 In the main menu point "Display", the individual submenu points should be selected subsequently and provided with the correct parameters to ensure the optimum adjustment of the display options. The procedure is described in the following. The following submenu points are available: VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 40 The optionally integrated background lighting can be adjusted via the adjustment menu. The function depends on the height of the supply voltage, see "Technical data". The lighting is switched off in delivery status. Diagnostics - Device In this menu item, the device status is displayed. status VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 41 The respective min. and max. measured values are saved in the Additional sensor. The values are displayed in the menu item "Peak values Ad- ditional". This menu item displays the peak values of the electronics tempera- ture as well as the dielectric constant. VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 42 Select the requested simulation size and adjust the requested value. Caution: During simulation, the simulated value is outputted as 4 … 20 mA cur- rent value and digital HART signal. Push the [ESC] key to deactivate the simulation. VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 43 "Lock/Release setup/ adjustment". In delivery status, the PIN is "0000". Additional adjustments - In this menu item, the internal clock of the sensor is adjusted. Date Time VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 44 Max. adjustment - Level Distance: 0.000 m(d) - note block- ing distances Min. adjustment - Level Min. adjustment - Level Distance: Probe length - take dead band into account Accept adjustment of the level measurement? VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 45 Current output 2 - Reaction in case of failure ≤ 3.6 mA Current output - Min. 3.8 mA Current output - Max. 20.5 mA Third HART variable (TV) Measurement certainty, level Fourth HART variable (QV) Electronics temperature VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 46 • Read from sensor: Read data from sensor and store into the display and adjustment module • Write into sensor: Store data from the display and adjustment module back to the sensor VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 47 63 must be assigned to each sensor. If you select the function "Analogue current output" and also enter an address number, you can output a 4 … 20 mA signal in Multidrop mode. VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 48: Saving The Parameter Adjustment Data

    The procedure is described in the operating instructions manual "Display and adjustment module" in the menu item "Copy sensor data". The data remain there permanently even if the sensor power supply fails. VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 49 If it is necessary to exchange a sensor, the display and adjustment module is inserted into the replacement instrument and the data are likewise written into the sensor via the menu item "Copy sensor data". VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 50: Setting Up Sensor And Modbus Interface With Pactware

    2 Interface adapter VEGACONNECT Sensor To the Modbus electron- The connection of the PC to the Modbus electronics is carried out via a USB cable. Scope of the parameter adjustment: • Sensor electronics • Modbus electronics VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 51: Parameter Adjustment With Pactware

    FDT standard are required. The up-to-date PACTware version as well as all available DTMs are compiled in a DTM Collec- tion. The DTMs can also be integrated into other frame applications according to FDT standard. VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 52: Set Up With The Quick Setup

    The standard version is available as a download under www.vega.com/downloads and "Software". The full version is avail- able on CD from the agency serving you. Set up with the quick setup...
  • Page 53 2 Extended adjustment Maintenance Quick setup With quick setup you can carry out the parameter adjustment of VEGAFLEX 81 for your application in just a few simple steps. The assistant-driven adjustment includes the basic settings for simple, reliable setup and commissioning. Information: If the function is inactive, then possibly no instrument is connected.
  • Page 54 Level in the vessel • Level in the bypass/standpipe • Interface in the vessel • Interface in the bypass/standpipe • Demonstration mode Level measurement: If you select "Level", you can select the proper- ties of the medium in another field. VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 55 The entered value refers to the distance from the sealing surface of the process fitting (sensor reference plane) to the total level or interface. Step 4 Linearization is required if the measured value should be outputted Linearization in proportion to the volume and not the level. The linearization acts VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 56 This procedure can last several minutes. Create instrument documentation? This function is used to print or create a PDF file of the current param- eter adjustment. To read the PDF file, you need a suitable program (for example Acrobat Reader). To print or create the PDF file, all data are downloaded from the device. For this function, the full version of the DTM Collection is required. This procedure can last several minutes. VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 57: Saving The Parameter Adjustment Data

    PIN is entered again. Saving the parameter adjustment data We recommend documenting or saving the parameter adjustment data via PACTware. That way the data are available for multiple use or service purposes. VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 58: Diagnostics And Service

    Echo curve of the setup: This is used as reference echo curve for the measurement conditions during setup. Changes in the measure- ment conditions during operation or buildup on the sensor can thus be recognized. The echo curve of the setup is stored via: • PC with PACTware/DTM • Control system with EDD VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 59: Status Messages

    PACTware/DTM or EDD. Out of specification: The measured value is unstable because the instrument specification is exceeded (e.g. electronics temperature). This status message is inactive by default. It can be activated by the user via PACTware/DTM or EDD. Maintenance: Due to external influences, the instrument function is limited. The measurement is affected, but the measured value is VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 60 3 min. F113 – Error in the internal – Disconnect operating Bit 7 instrument communi- voltage briefly Communi- cation – Send instrument for cation error repair VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 61 – Wait for the automatic end Simulation ac- after 60 mins. tive Out of specification The following table shows the error codes and text messages in the status message "Out of specification" and provides information on causes as well as corrective measures. VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 62 – Measurement certainty is – Check installation and too low for a reliable meas- process conditions Reliability too urement – Clean or exchange process – Process component or component or probe probe contaminated or defective VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 63: Rectify Faults

    Error Cause Rectification 4 … 20 mA signal – Fluctuations of – Set damping according to the not stable the measured instrument via the display and variable adjustment module or PACTware/ VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 64 Wherever the sensor displays a constant value, the reason could also be the fault setting of the current output to "Hold value" • In case of a too low level indication, the reason could be a line resistance that is too high VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 65 – Check installation conditions range. The sensor goes into – If possible, switch off the func- overfill protection mode. The time tion "Overfill protection" max. level (0 m distance) as well as the status message "Overfill protection" are output- ted. VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 66: Exchanging The Electronics Module

    24 hour service hotline Should these measures not be successful, please call in urgent cases the VEGA service hotline under the phone no. +49 1805 858550. The hotline is also available outside normal working hours, seven days a week around the clock.

  • Page 67: Software Update

    Clean the instrument and pack it damage-proof • Attach the completed form and, if need be, also a safety data sheet outside on the packaging • Please contact the agency serving you to get the address for the return shipment. You can find the agency on our home page www.vega.com. VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 68: Dismounting

    Pass the instrument directly on to a spe- cialised recycling company and do not use the municipal collecting points. These may be used only for privately used products according to the WEEE directive. VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 69: Supplement

    Ʋ Glass potting Borosilicate glass GPC 540 Ʋ Contacts Alloy C22 Ʋ Helium leak rate < 10 mbar l/s Ʋ Pressure resistance See process pressure of the sensor Not suitable for hot steam applications VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 70 Ʋ Plastic housing max. 10 Nm (7.376 lbf ft) Ʋ Aluminium/Stainless steel housing max. 50 Nm (36.88 lbf ft) Input variable Measured variable Level of liquids Min. dielectric constant of the medium ε ≥ 1.4 VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 71 +860 … +1060 mbar/+86 … +106 kPa (+12.5 … +15.4 psig) Installation reference conditions Ʋ Min. distance to installations > 500 mm (19.69 in) Ʋ Vessel metallic, ø 1 m (3.281 ft), centric installation, process fitting flush with the vessel ceiling VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 72 With interface measurement = 2.0 Depending on the installation conditions, there can be deviations which can be rectified with an adaptation of the adjustment or a change of the measured value offset in the DTM service mode The dead bands can be optimizes by a false signal suppression. VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 73 Steam (saturated 100 °C/212 °F 0.26 % steam) 180 °C/356 °F 0.17 % 2.1 % 264 °C/507 °F 0.12 % 1.44 % 9.2 % 366 °C/691 °F 0.07 % 1.01 % 5.7 % VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 74 Time span after a sudden measuring distance change by max. 0.5 m in liquid applications, max 2 m with bulk solids applications, until the output signal has taken for the first time 90 % of the final value (IEC 61298-2). VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 75 Fig. 39: Ambient temperature - process temperature, version with temperature adapter Ambient temperature Process temperature (depending on the seal material) Maximum permissible temperature - standard Limited temperature range - plastic housing and stainless steel housing, electropolished VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 76 Ʋ Number of digits Ʋ Size of digits W x H = 7 x 13 mm Adjustment elements 4 keys Protection rating Ʋ unassembled IP 20 Ʋ mounted into the housing without IP 40 cover VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 77: Basics Modbus

    Instruments with approvals can have different technical specifications depending on the version. For that reason the associated approval documents of these instruments have to be carefully noted. They are part of the delivery or can be downloaded under www.vega.com, "VEGA Tools" and "Instrument search" as well as under www.vega.com/downloads and "Approvals". 10.2 Basics Modbus Bus description The Modbus protocol is a communication protocol for the communication between instruments.
  • Page 78 Fig. 41: Bus architecture Modbus Connection resistor Bus participant Voltage supply Protocol description The VEGAFLEX 81 is suitable for connection to the following RTUs with Modbus RTU or ASCII protocol. Protocol ABB Totalflow Modbus RTU, ASCII Bristol ControlWaveMicro Modbus RTU, ASCII Fisher ROC...

  • Page 79: Modbus Register

    (4 bytes) according to IEEE 754 are transmitted with individually selectable order of the data bytes (byte transmission order). This "Byte transmission order" is determined in the parameter "Format Code". Hence the RTU knows the registers of the VEGAFLEX 81 which must be contacted for the variables and status information.
  • Page 80 Quarternary Variable in Byte Order ABCD (Big En- dian) Status 2100 DWord See Register 100 2102 DWord Primary Variable in Byte Order DCBA (Little Endian) 2104 DWord Secondary Variable in Byte Order DCBA (Little En- dian) VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 81: Modbus Rtu Commands

    With this command, any number (1-127) of holding registers can be read out. The start register, from which the readout should start, and the number of registers are transmitted. Request: Parameter Length Code/Data Function Code 1 Byte 0x03 VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 82 1 Byte 0x06 Start Address 2 Bytes 0x0000 to 0xFFFF Number of Registers 2 Bytes Data Response: Parameter Length Code/Data Function Code 1 Byte 0x04 Start Address 2 Bytes Register Value 2 Bytes Data VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 83 Function Code 1 Byte 0x10 Sub Function Code 2 Bytes 0x0000 to 0xFFFF Data 2 Bytes 0x01 to 0x7B FC17 Report Slave ID With this function code, the Slave ID can be queried. VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 84: Levelmaster Commands

    List of Object value 1 Byte Depending on the Object ID 10.5 Levelmaster commands The VEGAFLEX 81 is also suitable for connection to the following RTUs with Levelmaster protocol. The Levelmaster protocol is often called "Siemens" "Tank protocol". Protocol ABB Totalflow Levelmaster...
  • Page 85 10 Supplement Protocol Thermo Electron Autopilot Levelmaster Parameters for the bus communication The VEGAFLEX 81 is preset with the default values: Parameter Configurable Values Default Value Baud Rate 1200, 2400, 4800, 9600, 19200 9600 Start Bits Data Bits 7, 8 Parity...
  • Page 86 Set Baud Rate 8 (12) characters ASCII UuuBbbbb[b][pds] Bbbbb[b] = 1200, 9600 (default) pds = parity, data length, stop bit (optional) parity: none = 81, even = 71 (de- fault), odd = 71 VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 87 Report Receive to Transmit Delay 4 characters ASCII UuuR Response: Parameter Length Code/Data Report Receive to Transmit Delay 7 characters ASCII UuuRmmm mmm = milliseconds (50 up to 250), default = 127 ms VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 88: Configuration Of Typical Modbus Hosts

    Erorr in Frame (too short, too long, wrong data) LV-Error Value out of limits 10.6 Configuration of typical Modbus hosts Fisher ROC 809 Wiring plan (Rx/Tx -) (Rx/Tx +) +30 Vdc Fig. 42: Connection of VEGAFLEX 81 to RTU Fisher ROC 809 VEGAFLEX 81 RTU Fisher ROC 809 Voltage supply Parameter Parameter Value Baud Rate 9600 VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 89 The basic number of the input registers is always added to the input register address of VEGAFLEX Address 1303 must hence be entered as register address for 1302 for RTU ABB Total Flow. VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 90 The basic number of the input registers is always added to the input register address of VEGAFLEX Address 1300 must hence be entered as register address for 1300 for RTU Thermo Electron Auto- pilot. VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 91 The basic number of the input registers is always added to the input register address of VEGAFLEX Address 1303 must hence be entered as register address for 1302 for RTU Bristol ControlWave Micro. VEGAFLEX 81 • Modbus and Levelmaster protocol...

  • Page 92: Dimensions

    The basic number of the input registers is always added to the input register address of VEGAFLEX Address 31303 must hence be entered as register address for 1302 for RTU ScadaPack. 10.7 Dimensions The following dimensional drawings represent only an extract of all possible versions. Detailed VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 93 10 Supplement dimensional drawings can be downloaded at www.vega.com/downloads under "Drawings". Housing ~ 87 mm ~ 84 mm (3.43") ø 84 mm (3.31") ø 79 mm (3.31") (3.11") M16x1,5 M16x1,5 M20x1,5/ M20x1,5/ ½ NPT ½ NPT Fig. 47: Dimensions housing - with integrated display and adjustment module the housing is 9 mm/0.35 in higher Plastic housing Aluminium/Stainless steel housing...
  • Page 94 SW 41 (1.61") (G1, 1 NPT) SW 46 (1.81") (G1½, 1½ NPT) G¾, ¾ NPT, G1, 1 NPT, G1½, 1½ NPT G1½, 1½ NPT ø 21,3 mm ø 42,2 mm (0.84") (1.66") Fig. 48: VEGAFLEX 81, threaded version Sensor length, see chapter "Technical data" Coaxial version ø 21.3 mm (0.839 in) Coaxial version ø 42.2 mm (1.661 in) VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 95 Les lignes de produits VEGA sont globalement protégées par des droits de propriété intellec- tuelle. Pour plus d'informations, on pourra se référer au site www.vega.com. VEGA lineas de productos están protegidas por los derechos en el campo de la propiedad indus- trial. Para mayor información revise la pagina web www.vega.com.
  • Page 96 Replacement parts – Display and adjustment module with Factory calibration date 48 heating 12 False signal suppression 38 – Electronics module 12 Fault rectification 63 – Electronics module, Modbus 12 Functional principle 9 Reset 44 VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 97 Scaling measured value 35, 36 Sensor characteristics 48 Sensor status 40 Service hotline 66 Simulation 42 Special parameters 47 Status messages - NAMUR NE 107 59 Type label 7 Type of medium 31 Units 30 VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 98 Notes VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 99 Notes VEGAFLEX 81 • Modbus and Levelmaster protocol...
  • Page 100 Subject to change without prior notice © VEGA Grieshaber KG, Schiltach/Germany 2014 VEGA Grieshaber KG Phone +49 7836 50-0 Am Hohenstein 113...

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