Siemens SITRANS P DS III Operating Instructions Manual
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Siemens SITRANS P DS III Operating Instructions Manual

Pressure transmitter with profibus pa
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Summary of Contents for Siemens SITRANS P DS III

  • Page 3 ___________________ SITRANS P DS III with PROFIBUS PA Introduction ___________________ Safety information ___________________ Description SITRANS ___________________ Installing / mounting Pressure transmitter ___________________ SITRANS P DS III with PROFIBUS Connecting up ___________________ Operation Operating Instructions ___________________ Operator control functions via PROFIBUS...
  • Page 4 Note the following: WARNING Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation. If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems.

  • Page 5: Table Of Contents

    Measuring cell for gauge pressure, front-flush membrane ............34 3.6.3.7 Measuring cell for absolute pressure, front-flush membrane ............34 Remote seal ..........................35 SIMATIC PDM ..........................36 PROFIBUS ........................... 36 SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 6 Operation using buttons ......................79 6.5.3 Setting/adjusting electrical damping ................... 79 6.5.4 Calibrate zero point ........................80 6.5.5 Locking of buttons and functions ....................81 6.5.6 Measured value display ......................82 SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 7 Overview of simulation ....................... 123 7.10.2 Simulating output ........................123 7.10.3 Simulating input.......................... 124 7.10.4 Simulating the pressure sensor ....................124 7.10.5 Simulating sensor and electronics temperature ................. 125 SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 8 Configuration with host system ....................156 Configuration/project engineering ......................159 Cyclical data transfer ......................... 159 Configuring ..........................159 9.2.1 Overview of configuration ......................159 9.2.2 Configuration of user data ......................159 SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 9 Measuring accuracy ........................200 13.5 Operating conditions ........................207 13.6 Construction ..........................210 13.7 Display, keyboard and auxiliary power ..................215 13.8 Certificates and approvals ......................216 13.9 PROFIBUS communication ....................... 218 SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 10 SITRANS P, DS III for gauge pressure and absolute pressure from the gauge pressure series ............................221 14.2 SITRANS P DS III for differential pressure, flow rate and absolute pressure from the differential pressure series ......................223 14.3 SITRANS P DS III for level ......................226 14.4...

  • Page 11: Introduction

    The programming manual is an integral part of the CD, which is either supplied or can be ordered. The programming manual is also available on the Siemens homepage. On the CD, you will also find the catalog extract with the ordering data, the Software Device Install for SIMATIC PDM for additional installation, and the required software.

  • Page 12: Scope Of The Instructions

    WARNING Using a damaged or incomplete device Danger of explosion in hazardous areas. • Do not use damaged or incomplete devices. See also Return procedure (Page 183) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 13: Transportation And Storage

    The sales contract contains all obligations on the part of Siemens as well as the complete and solely applicable warranty conditions. Any statements regarding device versions described in the manual do not create new warranties or modify the existing warranty.
  • Page 14 Introduction 1.7 Notes on warranty SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 15: Safety Information

    ● National Electrical Code (NEC - NFPA 70) (USA) ● Canadian Electrical Code (CEC) (Canada) Further provisions for hazardous area applications are for example: ● IEC 60079-14 (international) ● EN 60079-14 (EC) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 16: Conformity With European Directives

    • Only carry out modifications that are described in the instructions for the device. Failure to observe this requirement cancels the manufacturer's warranty and the product approvals. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 17: Requirements For Special Applications

    Due to the large number of possible applications, each detail of the described device versions for each possible scenario during commissioning, operation, maintenance or operation in systems cannot be considered in the instructions. If you need additional information not covered by these instructions, contact your local Siemens office or company representative. Note...
  • Page 18 The key cover may be opened temporarily at any time for the purposes of operating the transmitter, even during plant operation; the screws should then be tightened again. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 19 • Devices and tools used must be free of static charge. • Hold modules only by their edges. • Do not touch connector pins or conductor tracks on a module with the ESD notice. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 20 Safety information 2.4 Use in hazardous areas SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 21: Description

    The field devices are integrated over PROFIBUS PA with: SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 22: Application

    ● Differential pressure With appropriate parameter settings and the necessary add-on parts (e.g. flow orifices and remote seals), the pressure transmitter can also be used for the following measurements: SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 23 ● Gauge pressure, suitable for small positive or negative pressure value ● In combination with a primary element: flow rate q ~ The smallest measuring range is 20 mbar (8.03 inH O), the largest is 30 bar (435 psi). SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 24: Structure

    ● The electronics enclosure is made of die cast aluminum or precision cast stainless steel. ● The housing has a removable circular cover at the front and the back. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 25: Nameplate Layout

    The label which bears the Order No. and other important information such as design details or technical data is present on the side of the housing. ① ② Order number (machine-readable product Serial number code) Figure 3-3 Example of a nameplate SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 26: Measuring Point Label Layout

    This chapter describes how the transmitter works. First the electronics are described, and then the physical principle of the sensors which are used with the various device versions for the individual measurement types. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 27: Operation Of The Electronics

    ● The digital signal is analyzed in a microcontroller and corrected with regard to linearity and thermal characteristics. ⑦ ● The signal is available at an electrically isolated PA interface on the PROFIBUS PA. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 28: Principle Of Operation Of The Measuring Cell

    ● Gauge pressure ● Absolute pressure ● Differential pressure and flow rate ● Level The following process connections are available, for example: ● G1/2 B, 1/2-14 NPT ● Male thread: M20 SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 29: Measuring Cell For Gauge Pressure

    Transmitters with measuring span ≤ 63 bar measure the inlet pressure against atmosphere, those with measuring spans ≥ 160 bar against vacuum. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 30: Measuring Cell For Differential Pressure And Flow Rate

    (bridge circuit) of the differential pressure sensor. ● The change in the resistance causes a bridge output voltage proportional to the differential pressure. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 31: Measuring Cell For Level

    The displacement changes the resistance of the four doped piezoresistors in the bridge circuit. ● The change in the resistance causes a bridge output voltage proportional to the differential pressure. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 32: Measuring Cell For Absolute Pressure From The Differential Pressure Series

    (bridge circuit) of the absolute pressure sensor. ● The change in the resistance causes a bridge output voltage proportional to the absolute pressure. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 33: Measuring Cell For Absolute Pressure From The Gauge Pressure Series

    (bridge circuit) of the absolute pressure sensor. The change in the resistance causes a bridge output voltage proportional to the inlet pressure. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 34: Measuring Cell For Gauge Pressure, Front-Flush Membrane

    Measuring cell Filling liquid ② ⑤ Process connection Absolute pressure sensor ③ Seal diaphragm Inlet pressure Figure 3-13 Function chart of the measuring cell for absolute pressure, flush mounted diaphragm SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 35: Remote Seal

    ● The loss of transmission fluid results in inaccuracies in the measurement and failure of the measuring system. ● In order to avoid leaks and measuring errors, please observe the installation and maintenance instructions in addition to the safety notes. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 36: Simatic Pdm

    PROFIBUS PA. Advantages include: ● Savings on installation costs ● More extensive diagnostics, leading to increased availability of installation sections SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 37: Properties

    Properties PROFIBUS PA allows bidirectional communication between a bus master and field devices. At the same time, the shielded two-strand wiring provides auxiliary power to the two-wire field devices. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 38 Description 3.9 PROFIBUS SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 39: Installing / Mounting

    Note Material compatibility Siemens can provide you with support concerning selection of sensor components wetted by process media. However, you are responsible for the selection of components. Siemens accepts no liability for faults or failures resulting from incompatible materials.
  • Page 40 • In the case of a conduit system, mount a spark barrier at a defined distance from the device input. Observe national regulations and the requirements stated in the relevant approvals. See also Technical data (Page 191) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 41 Loss of explosion protection Danger of explosion in hazardous areas if the device is open or not properly closed. • Close the device as described in Chapter "PROFIBUS assembly guidelines (Page 66)". SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 42 Damage to device by severe external stresses and loads (e.g. thermal expansion or pipe tension). Process media can be released. • Prevent severe external stresses and loads from acting on the device. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 43: Installation Location Requirements

    • Make sure that process connectors are clean, and suitable gaskets and glands are used. • Mount the device using suitable tools. Refer to the information in Chapter "Technical data (Page 191)", for example installation torques requirements. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 44: Disassembly

    • If the device contains dangerous media, it must be emptied prior to disassembly. Make sure that no environmentally hazardous media are released. • Secure the remaining connections so that no damage can result if the process is started unintentionally. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 45: Installation (Except Level)

    Lay the pressure tubing with a constant gradient to the pressure tapping point, so that any condensate produced can drain in the main line and thereby avoid corruption of the measured values. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 46: Installation (Except Level)

    ● On a wall or a mounting frame using two screws ● On a vertical or horizontal mounting tube (Ø 50 to 60 mm) using a tube bracket Fasten the transmitter mounting bracket using the two screws provided. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 47 Fastening the transmitter on the mounting bracket Figure 4-2 An example of fastening the transmitter on the mounting bracket in the case of differential pressure and horizontal differential pressure lines SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 48: Level" Installation

    Instructions for level installation Requirements Note Compare the desired operating data with the data on the nameplate. Please also refer to the information on the remote seal if this is fitted. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 49: Installation For Level

    2. Screw on the transmitter's flange. 3. Observe the installation position. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 50: Connection Of The Negative Pressure Line

    Measurement assembly on an open container Lower filling level Δp Start of scale value Upper filling level Δp Full-scale value Pressure ρ Density of the measured medium in the container Acceleration due to gravity SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 51 Lower filling level Δp Start of scale value Upper filling level Δp Full-scale value Pressure ρ Density of the measured medium in the container Acceleration due to gravity SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 52 The process connection on the negative side is a female thread -18 NPT or an oval flange. Lay the line for the negative pressure using a seamless steel tube 12 mm x 1.5 mm. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 53: Remote Seal" Installation

    The pressure rating specified on the remote seal applies to reference conditions according to IEC 60770. • For the maximum permissible pressure at higher temperatures, please refer to the standard specified on the remote seal. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 54: Installation Of The Remote Seal With The Capillary Line

    – If halocarbon oil is used as the filling liquid, this maximum height difference is only = 4 m, see installation types A and B. 1max. If negative overpressure is observed during measurements, reduce the permissible height difference accordingly. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 55 Distance between the container flange and the pressure transmitter For absolute pressure measurements (vacuum), install the measuring device at least at the height of the remote seal or below it (see installation types C). SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 56 Full scale pressure ρ Density of the filling oil in the capillary line of the remote seal Acceleration due to gravity Distance between the container flange and the pressure transmitter SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 57 Full-scale value Start of scale pressure start Full scale pressure ρ Density of the filling oil in the capillary line of the remote seal Acceleration due to gravity Gland distance SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 58 Density of the process medium in the container ρ Density of the filling oil in the capillary line of the remote seal Acceleration due to gravity Lower filling level Upper filling level Gland distance SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 59 * g * H - ρ * g * H Full-scale value: = ρ * g * H - ρ * g * H Below the lower measuring point SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 60: Turing The Measuring Cell Against Housing

    ③ electronic housing. An orientation mark is provided at the throat of the measuring cell. This mark must remain in the marked section when turning. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 61 (Allen screw 2.5 mm). 2. Turn the electronic housing against the measuring cell. Follow the marked turning range ① while doing so. 3. Tighten the retaining screw (torque: 3.4 to 3.6 Nm). SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 62: Rotating The Display

    You can turn it by ±90° or ±180°. 3. Screw the covers back on as far as they will go. 4. Secure the covers with the cover catch. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 63: Connecting Up

    • Connect the device in accordance with the specified power supply and signal circuits. The relevant specifications can be found in the certificates, in Chapter "Technical data (Page 191)" or on the nameplate. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 64 • Circuits of limited energy may also be connected in the energized state in hazardous areas. • Exceptions for type of protection "Non-sparking nA" (Zone 2) are regulated in the relevant certificate SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 65 For metal housings there is an increased electromagnetic compatibility compared to high- frequency radiation. This protection can be increased by grounding the housing, see Chapter "PROFIBUS assembly guidelines (Page 66)". SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 66: Connecting The Device

    PROFIBUS - PROFINET (http://www.profibus.com/home/)" > DOWNLOADS under "Installation guidelines". Opening the device 1. Unscrew the cover of the electrical cable compartment. An identification text "FIELD TERMINAL" is provided at the side of the housing. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 67 Test connector for direct current measuring device or connection for external display ⑤ Cover safety catch ⑥ Protective conductor connector/equipotential bonding terminal ⑦ Process connection ⑧ Grounding terminal Figure 5-1 Electrical connection, power supply SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 68 ⑧ Cover (rear) for electrical terminal compartment Safety catch for stainless steel enclosure Figure 5-2 View of the transmitter: Left: Back right: Front view See also Structure (Page 24) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 69: Connecting The M12 Connector

    Figure 5-3 Preparing the connecting cable ① ③ Reference edge for stripping Insulating sleeve over the shield ② ④ Reference edge for the dimension Shrink sleeve specifications for cable assembly SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 70 Layout for M12 connector Layout for M12 jack ① ① M12 x 1 thread Positioning slot ② Positioning catch Not connected Not connected Shield Shield Middle jack contact not connected SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 71: Operation

    Key lock and write protection Measured value display Unit Bus address Device mode Decimal point Zero point drift LO calibration HI calibration Customized characteristic curve Diagnostics function Measurement type SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 72: Basic Safety Instructions

    The operating instructions in the Chapter "Local operation (Page 76)" apply if the device has been delivered with a dummy cover. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 73: Display

    Violation of upper limit displays are also referred to as status since they have meanings dependent on the settings. ⑧ If the communication display blinks, this indicates an active communication. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 74: Units Display

    "Error" appears in the measured value display. A status code indicating the type of error appears in the bottom line of the display. This diagnostic information is also available via PROFIBUS. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 75: Mode Display

    The selected active mode is shown in the mode display. Display Figure 6-4 Example for mode display In the example, a damping of 0.2 seconds was set in mode 4. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 76: Status Display

    You operate the transmitter on site using the buttons. You can select and execute the functions described in the table using adjustable modes. Operation by buttons is not available for devices without display. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 77 Local operation is possible if you are in measuring mode and neither "L", "LA" nor "LL" is output in the mode display. If operations are disabled, parameters can still be read. An error message is output if you try to change parameters. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 78 Display of current measuring range LO calibration Increase Decrease Apply Calibrate bottom point of characteristic value value HI calibration Increase Decrease Apply Calibrate top point of characteristic value value SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 79: Operation Using Buttons

    0 and 100 seconds using the steps of 0.1 seconds. This electrical damping also has an effect on the built-in basic damping of the device. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 80: Calibrate Zero Point

    You can calibrate the zero point in mode 7. A zero point calibration is used to correct zero errors resulting from the mounting position of the transmitter. You must proceed differently depending on the device version. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 81: Locking Of Buttons And Functions

    In mode 10 you can lock the functions which are always possible using the buttons. An example of locking is the saving of stored parameter settings. Requirement Note Check the measured value display to establish that this indicates the desired setting. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 82: Measured Value Display

    ● Volume Procedure To select the source for the measured value display, proceed as follows: 1. Set mode 13. 2. Select the variable. 3. Save with the [M] button. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 83 Flow not relevant for relative and absolute pressure *) The option of selecting the physical unit is additionally determined by the channel setting (mass or volume) of the analog input and totalizer function blocks. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 84: Unit

    In mode 14, set the physical unit in which the device's measured value display should be represented. Requirement You have already selected the desired source for the measured value display in mode 13. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 85 HG Table 6- 10 Unit for volume (V) Unit Display Unit Display pint (US) Pint quart (US) Quart US gallon imp. gallon ImGAL bushel BUSHL barrel barrel liquid bblli SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 86 Long tons / m LT/m T / h Long tons / h LT/h T / d Long tons / d LT/d Table 6- 13 Unit for level (L) Unit Display Unit Display SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 87 SIMATIC PDM which does not appear in the corresponding valid list, the current measurement value will be shown without a unit in the measured value display. See also Units of the pressure transducer block (Page 102) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 88: Bus Address

    Exchangeable for transmitters with PROFIBUS PA Profile 3.0, with analog input function block, without totalizer Delivery state Profile-compatible with extensions: Full functionality of the SITRANS P with: Analog input function block • Totalizer • SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 89 If the device is exchanging period data, no change is possible to the device operating type. Table 6- 18 Device master data file Display File name pa_29700.gsd or pa_39700.gsd siem80A6.gsd sip1804B.gsd [128] pa_29740.gsd or pa_39740.gsd See also Errors (Page 188) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 90: Position Of The Decimal Point

    The zero-point adjustment is shown in mode 18. The zero point adjustment is carried out by the zero point calibration in mode 7 or by the calibration procedure in modes 19 and 20. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 91: Lo Calibration

    The measured value display switches to the current pressure value. Using the [↑] and [↓] keys, you can enter the reference value starting from there. 4. Press the [↑] und [↓] buttons simultaneously for 2 seconds. 5. Save with the [M] button. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 92: Hi Calibration

    ● In mode 14, select the desired pressure unit. Note If you change this setting, the measurement range can be restricted to the point that the permissible sensor limits are violated even with small pressure changes. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 93 The display shows the value of the last calibration procedure, with the appropriate unit. 2. Leave the mode by pressing [M]. See also Errors (Page 188) Calibrating the sensor (Page 126) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 94 Operation 6.5 Local operation SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 95: Operator Control Functions Via Profibus

    The device functions are subdivided into blocks of different task areas. They can be parameterized during asynchronous data transmission. Pressure Sensor Temperature Figure 7-1 Block circuit diagram of collection and processing of measured values SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 96 The output of this block forwards the totalized values and the corresponding status information via PROFIBUS. Local operation and display The display shows the desired measured value with its physical unit. You can select different functions for local operation. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 97 Electronics temperature transducer block Electronics temperature Analog input function block Output Totalizer function block Totalizer output See also Measured value display (Page 82) Cyclical data transfer (Page 159) Acyclic data transfer (Page 164) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 98: Pressure Transducer Block

    SEC 1 Secondary variable 1 Sensor SEC 2 Secondary variable 2 Temperature PRIM Primary variable SEC 3 Secondary variable 3 Figure 7-2 Function groups of the pressure transducer block SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 99 By means of a multiplication with the density the volume is used to compute the mass. This is stored in SEC 3. The temperature value of the pressure sensor is available in the "temperature" parameter. See also Acyclic data transfer (Page 164) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 100: Linearization Type Function Group

    Linear No linearization Level: Volume User Linearization of container defined characteristics. (table) The relationship between level and volume is described using a maximum of 31 nodes at arbitrary intervals. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 101 The device checks which pair of nodes bracket the pressure (secondary variable 1) relative to the measurement range. To convert the pressure to the measured value (primary variable), the device interpolates on a line between the interpolation nodes. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 102: Units Of The Pressure Transducer Block

    Depending on the measurement type, units are allowed from the following measurement functions: Table 7- 5 Overview of available units Variable Measurement type Pressure Level Volume Volume flow Mass flow Raw pressure value Secondary variable 1 SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 103: Electronics Temperature Transducer Block

    "UNCERTAIN – Value not accurate – high/low-limit". This procedure is accompanied by a PROFIBUS diagnostic message "Electronics temperature too high". There are also peak indicators for maximum and minimum values available. See also Min/max indicator (Page 122) Status (Page 162) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 104: Analog Input Function Block

    (AUTO setting) or a manually preset simulation value (MAN setting). If the function block is out of order (O/S setting) then the safety preset is always output. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 105: Totalizer Function Block

    Incoming measured value from the transducer for pressure MAN Manual Out of Service Output (value, status) AUTO Automatic Figure 7-6 Function groups of the totalizer function block SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 106: Overview Of Operating Functions

    In measurement mode, measurement values such as pressure, fill level or flow are available on the PROFIBUS-PA interface. PROFIBUS PA communication is signaled by the communication symbol "o" on the display. See also Display elements (Page 73) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 107: Settings

    To select pressure measurement, proceed as follows: 1. Start SIMATIC Manager. 2. Create a device with the desired measurement type. 3. To open SIMATIC PDM, double-click on the device you have created. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 108: Level Measurement

    "working range" > > > Output scaling Unit: as in "working range" Start of scale value: as in "working range" Full scale value: as in "working range" SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 109 ● Create an assignment between the measured volume value and the output value by setting these parameters: > Output > > Function block 1 - analog input Channel: Measured value (primary variable) > > > Measured value scaling SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 110 > Characteristic curve Characteristic curve User-defined table type: > > > Nodes New number of max. 31 nodes: x[n] measurement Pressure value range: y[n] working range: Corresponding volume value SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 111: Flow Measurement

    (with SIMATIC PDM) Output, totalizer output, reset totalizer output Current flow/time, volume or mass that has flowed over a time segment, Dosing SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 112 ● To acquire the current flow, use "Function Block 1 – Analog Input". Create an assignment between the measured flow value and the output value by setting these parameters: > Output > > Function Block 1 - Analog Input SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 113 ● Creep quantity suppression sets the measured flow quantity to 0, when the value falls below the preset limit. Enter the application point as a % of the operating range (volume flow). SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 114: Adjusting To A Desired Process Value

    The following examples illustrate this: Procedure The procedure is shown by means of two concrete application examples. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 115 Analog input function block Input for start-of-scale value: Input for final value: 400.0 Output for start-of-scale value: Output for final value: 2000.0 Unit (output): Text Unit text (output): Barrels SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 116: Electrical Damping (Filter Time Constant)

    SIMATIC PDM blocking and no parameters (except for keypad block) are not enabling of local possible either with local operation or using operation SIMATIC PDM. Blocks can also be combined: SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 117: Warning And Alarm Limits

    Table 7- 9 Limits and status displays Status Status Violation Display G_137 Low warning limit G_138 High warning limit G_141 Low alarm limit G_142 High alarm limit SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 118 High warning limit Low alarm G_141 Low alarm limit High warning limit G_142 High alarm limit Low warning limit Hysteresis Time Measured value Figure 7-8 Warning and alarm limits SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 119: Failure Behavior

    Counting continues with the last input value that U_072 had the "Good" status prior to the failure. Operation The bad measured value is accompanied by the B_0xx status assigned to it by the transducer block. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 120: Diagnostics Functions

    The interval is selectable. The timers can monitor on two levels, first giving a warning, then an alarm. Timer value Time Alarm Warning Figure 7-9 Calibration and service intervals SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 121: Clearing Warning

    To clear an alarm, proceed as follows: 1. Clear the alarm. The diagnostic message is deleted and the status set back to "Good". 2. Perform the calibration or service. 3. Reset the timer. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 122: Min/Max Indicator

    The min/max indicators are also updated during a simulation. Pressure Time Figure 7-10 Basic representation of min/max indicators See also Simulating the pressure sensor (Page 124) Simulating sensor and electronics temperature (Page 125) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 123: Simulation

    The behavior of the output can be observed e.g. in SIMATIC PDM or using a variable table (VAT component). To return to normal operation afterwards, set the target mode to AUTO. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 124: Simulating Input

    ) in a step function to a final value (v ), staying at each level for the given step interval (t ). At the final value, the direction reverses. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 125: Simulating Sensor And Electronics Temperature

    To return to normal operation afterwards, you must turn off the simulation. 7.10.5 Simulating sensor and electronics temperature By simulating the sensor and electronics temperature you can, for instance, check the influence of excessive temperature on the measurement results: SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 126: Calibrating The Sensor

    In the field "Pressure cleaned raw value", observe the effect of the calibration. In the "Lower calibration point" box, you can see whether the new calibration point was accepted. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 127: Correcting For Positional Error

    Correction for positional error not possible Procedure To correct for positional error, proceed as follows: 1. Call up the dialog "Correct for positional error". 2. Create a pressure calibration. 3. Click on "Transmit". SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 128: Reset

    Then you must change the address of the newly connected unit to a different value. If you remove the transmitter from the PROFIBUS chain, reset its address to 126. This allows you to include the transmitter in this or another system if necessary. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 129: Functional Safety

    Functional safety Safety function The safety function of SITRANS P DS III with PROFIsafe protocol (ordering option -Z C21) is based on the measurement of pressure. The pressure is converted to a digital measured value and transmitted via PROFIsafe communication. Fault tolerance allowances must be made, because the measured value transferred to the automation system by the transmitter can deviate from the physical value.

  • Page 130: Safety Integrity Level (Sil)

    Only one SITRANS P DS III device is required for single-channel operation for SIL 2. See also Certificates (http://www.siemens.com/processinstrumentation/certificates)
  • Page 131 SIL 3 90 to 99 % SIL 2 SIL 3 SIL 4 > 99 % SIL 3 SIL 4 SIL 4 Operational reliability in accordance with IEC 61511-1, Section 11.4.4 SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 132: Settings

    Requirement Key lock and write protection (Page 116) are canceled. We recommend that: ● You check the status for warnings and alarms. ● You check the measured value limits. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 133: Safety-Related Characteristics

    The safety characteristics necessary for using the system are listed in the "SIL Declaration of Conformity". These values apply under the following conditions: ● SITRANS P DS III pressure transmitters are only used in applications with a low demand rate for the safety function (low demand mode).

  • Page 134: Maintenance/Checking

    • Refer to the information in the chapter "Technical data (Page 191)". • Make sure that the add-on parts are suitable for the corresponding application with regard to materials, temperature of process medium, and pressure. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 135: Checking A Device With Add-On Pneumatic Block

    Z C21). All other chapters refer to both device versions, PROFIBUS and PROFIsafe. PROFIsafe enables safe communication by detecting and reporting all communication errors. Data security is continuously monitored on the PROFIBUS in the process. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 136: Technical Advantages Of Profisafe

    In the following example, you see that PROFIsafe and PROFIBUS devices can be operated simultaneously on a PROFIBUS network. Figure 8-3 Example of PROFIsafe communication See also PI PROFIBUS - PROFINET (http://www.profibus.com/home/) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 137: Further Information

    You will find more information on safety engineering and installing PROFIsafe in the document "Safety Engineering in SIMATIC S7". See also General functional safety (http://www.siemens.com/safety) Functional safety in process instrumentation (http://www.siemens.com/SIL) Product information on SITRANS P in the Internet (http://www.siemens.com/sitransp) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 138: Preconditions

    ● Firmware from 301.02.01 8.7.5 PROFIsafe Configuration For safety reasons, the PROFIsafe device ships with default settings. Requirement Before you commission the PROFIsafe device, configure it, for example in STEP 7. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 139: Import Edd With Simatic Pdm

    Procedure 1. You are in the "Catalog" view with the "standard" profile. Go to the device in the catalog: – "PROFIBUS-PA > Sensors > Pressure > SIEMENS > SITRANS P DSIII PROFIsafe" valid for firmware 0301.02.01 and 0301.02.02 – "PROFIBUS-PA > Sensors > Pressure > SIEMENS > SITRANS P DSIII PROFIsafe V2"...
  • Page 140 – crc length = 2, F-Par-Version = 0 → V1 PROFIsafe protocol 10.Adapt the value of the "F_WD_Time" parameter to the number of PROFIBUS devices connected to the PROFIBUS-PA bus. The default value for this parameter is 1 second. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 141 • "F-I/O passivated": Cyclic redundancy check error/sequence number error. • "F-I/O passivated": F-monitoring time for safety frame exceeded. To make sure that PROFIsafe V2 communication works correctly, use only F-CPUs approved for this purpose. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 142: Configure Cfc

    A selection list of transfer rates is displayed. – Connect the parameter value of the block "F_PA_AI" with the real value of the configured device. 5. Click the "Compile program" button. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 143 Until PROFIsafe commissioning is completed, the device displays the error "B_60: Bad function check". This has no effect on the operation of the device. The error message lets you know that the device is not yet in "S4". SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 144: Write Protection

    Activate write protection using PIN in SIMATIC PDM (Page 145) Activate and parameterize PROFIsafe with SIMATIC PDM (Page 146) Disable write protection using PIN in SIMATIC PDM (Page 155) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 145: Activate Write Protection Using Pin In Simatic Pdm

    Before you commission the PROFIsafe device, configure it, for example in STEP 7. Process Activate and parameterize PROFIsafe with SIMATIC PDM (Page 146) Commission PROFIsafe with SIMATIC PDM (Page 147) Check write protection with SIMATIC PDM (Page 152) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 146: Activate And Parameterize Profisafe With Simatic Pdm

    The device has activated the PROFIsafe functionality. The relevant menus for PROFIsafe commissioning are active in SIMATIC PDM. Note If you want to change the "F_Dest_ADD" parameter later, reset the device. Resetting the device (Page 154) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 147: Commission Profisafe With Simatic Pdm

    Commission PROFIsafe with SIMATIC PDM Start PROFIsafe commissioning 1. In the "Device" menu, select the "Wizard - PROFIsafe commissioning" command. The "Wizard - PROFIsafe commissioning" dialog box is opened. 2. Click "Next". SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 148 Functional safety 8.7 PROFIsafe 3. If the checksums are the same, select the checkbox. You obtain further information. 4. Click "Next". 5. Click "OK" to confirm the message that follows. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 149 Functional safety 8.7 PROFIsafe 6. In the "Device" menu, select the "Wizard - continue PROFIsafe commissioning" command. The "Wizard - PROFIsafe commissioning" dialog box is opened again. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 150 The PROFIsafe commissioning status shows the following: "S2 = application not inspected". 7. If the checksums are still the same, select the checkboxes. The PROFIsafe commissioning status shows the following: "S3 = inspection completed". SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 151 The PROFIsafe commissioning status shows the following: "S4 = PROFIsafe operation mode" 9. Click the "Close" button. Result The "Wizard - PROFIsafe commissioning" dialog box is closed. The PROFIsafe device is in "S4" and is write protected accordingly. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 152: Check Write Protection With Simatic Pdm

    The additional write protection by HOST is set in Continuous Function Chart (CFC) in the F_PA_AI function block, I_PAR_EN parameter. Note If you need a user-defined PIN write protection, you will find it in the appropriate chapter. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 153: Speeding Up The Commissioning Process

    Status/Diagnostics add-on." 7. Save this setting before commissioning. 8. Once you have concluded commissioning, unlock the "Service Diagnostics" parameter once again to receive all diagnostics information of the device. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 154: Resetting The Device

    Deactivating PROFIsafe commissioning in SIMATIC PDM Procedure 1. In the "Device" menu, select the "Wizard - PROFIsafe commissioning" command. 2. Click the "Change to unsafe mode" button. 3. Click the "Close" button. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 155: Disable Write Protection Using Pin In Simatic Pdm

    "Process Devices - Network View" of the SIMATIC Manager. 8.7.9.1 Making settings locally Procedure 1. Set mode 16. 2. Set the device mode [129] with the [↑] and [↓] keys. 3. Save with the [M] key. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 156: Configuration With Host System

    [128]: pa_29740.gsd or pa_39740.gsd [129]: SI0180A6.gsd or SIEM80A6.gsd or SI0280A6.gsd 8.7.9.2 Configuration with host system Note Generic Station Description (GSD) The generic station description file in HW Config remains the same: SI0180A6.gsd. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 157 After downloading the data to the device, cyclic communication with the device is once again possible. See also Activate and parameterize PROFIsafe with SIMATIC PDM (Page 146) Commission PROFIsafe with SIMATIC PDM (Page 147) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 158 Functional safety 8.7 PROFIsafe SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 159: Configuration/Project Engineering

    This allows the optimization of the data quantity to be transmitted. In the Siemens control system, the GSD files of all the usual devices are already available, and they are also available on the Internet and can be imported later.
  • Page 160 Totalizer reset function output output 0 Normal operation of totalizer Integration running. 1 Step integration and reset integrator back to 0. 2 Stop integration and load integrator with preset value. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 161: Transmission Of User Data Over Profibus

    User data is continually updated via PROFIBUS cyclical data transmission. Table 9- 3 IEEE standard floating point representation of the measured value Bits Byte Byte Byte Byte Sign positive negative mantissa exponent SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 162: Status

    1 master with a higher priority than the user data. Messages The content of the "Device state" parameter from the physical block is sent, along with information about whether a state change (event incoming/event sent) has occurred. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 163 Goes to "0" after 10 seconds Service necessary A calibration or service Perform the calibration or interval has run out. service and clear the message and reset the messages using SIMATIC PDM. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 164: Acyclic Data Transfer

    So that multiple class 2 masters can access the same transmitter at the same time, the device supports up to four C2 connections. However, you must ensure that the same data is not being written. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 165: Commissioning

    • Check prior to commissioning that the cover, cover locks, and cable inlets are assembled in accordance with the directives. Exception: Devices having the type of protection "Intrinsic safety Ex i" may also be opened in energized state in hazardous areas. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 166: Introduction To Commissioning

    The following commissioning cases are typical examples. Configurations different from those listed here may be meaningful depending on the system configuration. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 167: Gauge Pressure, Absolute Pressure From Differential Pressure Series, And Absolute Pressure From Gauge Pressure Series

    Shut-off module Shut-off valve ③ Shut-off valve to process ⑦ Shut-off valve (optional) ④ Shut-off valve for test connection or for ⑧ Condensate vessel (optional) bleed screw ⑨ Drain valve SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 168 5. Close the shut-off valve for the test connection ⑥ 6. Open the shut-off valve at the pressure tapping point. ③ 7. Open the shut-off valve for the process SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 169: Commissioning With Steam Or Liquid

    5. Close the shut-off valve for the test connection ⑥ 6. Open the shut-off valve at the pressure tapping point. ③ 7. Open the shut-off valve for the process SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 170: Differential Pressure And Flow Rate

    Measure • Make sure the locking screw and/or the vent valve are screwed in and tightened. • Ensure that the valves are operated correctly and properly. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 171: Commissioning In Gaseous Environments

    ② ⑦ Stabilizing valve Blowout valves ③ ④ ⑧ Differential pressure valves Condensation vessels (optional) ⑤ ⑨ Differential pressure lines Differential pressure transducer Requirement All shut-off valves are closed. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 172: Commissioning For Liquids

    Transmitter above the transducer differential pressure transducer ① ⑦ Pressure transmitter Drain valve ② ⑧ Stabilizing valve Gas collector vessels (optional) ③ ④ ⑨ Differential pressure valves Differential pressure transducer SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 173 12.Check and if required correct the zero point when the start of scale value is 0 mbar. ② 13.Close the stabilizing valve ③ ④ 14.Open the differential pressure valves ( ) completely. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 174: Commissioning With Vapor

    ② ① stabilizing valve is then opened, the transmitter can be damaged by the flow of vapor. • Follow the specified procedure for commissioning. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 175 12.Close the stabilizing valve ③ ④ 13.Open the differential pressure valve completely. ⑦ 14.You can briefly open the blow-out valves to clean the line. Close before steam starts to leak. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 176 Commissioning 10.4 Differential pressure and flow rate SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 177: Repair And Maintenance

    WARNING Impermissible repair of explosion protected devices Danger of explosion in areas subject to explosion hazard. • Repair must be carried out by Siemens authorized personnel only. WARNING Impermissible accessories and spare parts Danger of explosion in areas subject to explosion hazard.
  • Page 178 Danger of explosion in areas subject to explosion hazard. • Connect the device correctly after maintenance. • Close the device after maintenance work. Refer to Chapter "Connecting up (Page 63)". SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 179 • Disconnect the device before you open the enclosure or remove enclosure parts. • Observe the special precautionary measures if maintenance is required while the device is live. Have maintenance work carried out by qualified personnel. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 180: Maintenance And Repair Work

    • Define a maintenance interval for regular tests in line with device use and empirical values. • The maintenance interval will vary from site to site depending on corrosion resistance. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 181: Checking The Gaskets

    – PROFIBUS: B_016: sensor error diagnostics in measured-value recording ● Grave hardware faults, the processor is not functioning. Displays: – Display: no defined display – PROFIBUS: slave not available SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 182: Changing The Measuring Cell And Application Electronics

    Dust layers above 5 mm Danger of explosion in hazardous areas. Device may overheat du to dust build up. • Remove any dust layers in excess of 5 mm. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 183: Servicing The Remote Seal Measuring System

    • Do not use sharp or hard objects to clean the diaphragm. 11.4 Return procedure Enclose the bill of lading, return document and decontamination certificate in a clear plastic pouch and attach it firmly to the outside of the packaging. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 184: Disposal

    Note Special disposal required The device includes components that require special disposal. • Dispose of the device properly and environmentally through a local waste disposal contractor. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 185: Interrupts, Error And System Alarms

    U_071 Output Unsure, Input condition "fail Check the data measurement. safe" is fulfilled, the Last usable value, parameterized safety value constant setting is set to "keep last valid value". SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 186 3, output, totalizer output B_000 Output (cyclical data only), Used if no other totalizer output (cyclical information is data only) available. Device does not exist or cyclical connection is interrupted. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 187 High control limit Sensor error, limit secondary variable 2, violated (>120% of value violated measured value (primary nominal measurement variable), secondary range). variable 3, output 1), totalizer output 2) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 188: Errors

    If it does not match, correct the bus address. Mode 16 Set "ident" in mode 16. • • SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 189 F_008 Local operation blocked by Use SIMATIC PDM to set the SIMATIC PDM. "Local operation" parameter to "released". See also Status (Page 162) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 190 Interrupts, error and system alarms 12.2 Errors SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 191: Technical Data

    ● Measuring accuracy (Page 200) ● Operating conditions (Page 207) ● Construction (Page 210) ● Display, keyboard and auxiliary power (Page 215) ● Certificates and approvals (Page 216) ● PROFIBUS communication (Page 218) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 192: Input Point

    (1450 psi g) for oxygen measurement) 100 bar g (1450 psi g) for oxygen ambient temperature/process temperature measurement) ambient temperature/process 60°C temperature 60°C Start of scale value Between the measuring limits (fully adjustable) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 193 10 bar a 30 bar a 5000 mbar a (145 psi a) (435 psi a) (72.5 psi a) (145 psi a) (435 psi a) (2.32 … 72.5 psi a) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 194 100% of max. measuring range 1 bar g (14.5 psi g) only in PMC-Style Standard, not in Minibolt For PMC-Style Minibolt, the span should not be less than 500 mbar SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 195 (1450 psi g) for oxygen measurement) 100 bar g (1450 psi g) for oxygen ambient temperature/process temperature measurement) ambient temperature/process 60°C temperature 60°C Start of scale value Between the measuring limits (fully adjustable) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 196 (1450 psi g) for oxygen measurement) 100 bar g (1540 psi g) for oxygen ambient temperature/process temperature measurement) ambient temperature/process 60°C temperature 60°C Start of scale value Between the measuring limits (fully adjustable) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 197 Measuring cell with • (-33 % for 30 bar (435 psi) measuring cell) or 30 mbar a (0.44 psi a) silicone oil filling Measuring cell with • inert liquid SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 198 Measuring cell with • flange inert liquid Upper measuring limit 100% of maximum span 100% of max. measuring range Start of scale value between the measuring limits continuously adjustable SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 199: Output

    Linearly increasing or linearly decreasing • Linear increase or decrease or square root extracting increasing (only for • DS III differential pressure and flow rate) Bus physics – IEC 61158-2 Polarity-independent – SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 200: Measuring Accuracy

    Effect of auxiliary power supply In percent per change in voltage – 0.005 % per 1 V Measuring value resolution – 3 • 10 of the rated measuring range SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 201 Effect of auxiliary power supply In percent per change in voltage – 0.005 % per 1 V Measuring value resolution – 3 • 10 of the rated measuring range SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 202 In percent per change in voltage – 0.005 % per 1 V Measured value resolution – 3 • 10 of the rated measuring range *) not for 4 bar PMC Minibolt SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 203 Correction via zero offset Effect of auxiliary power supply In percent per change in voltage – 0.005 % per 1 V Measured-value resolution – 3 • 10 of the rated measuring range SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 204 As percentage (double values for measuring cell 20 mbar g (0.29 psi g)) ≤ (0.08 • r + 0.1) % ≤ 0.3% At -10 … +60°C (14 … 140°F) • SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 205 10 < r ≤ 30 • ≤ (0.0075 • r + 0.075) % – 30 < r ≤ 100 • Settling time T without electrical Approx. 0.2 s damping SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 206 Effect of auxiliary power supply In percent per change in voltage 0.005 % per 1 V Measured-value resolution – 3 • 10 of the rated measuring range SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 207: Operating Conditions

    Measuring cell with inert liquid • -10 … +85 °C (14 … 185 °F) Measuring cell with Neobee • (FDA-compliant) -30 … +85 °C (-22 … +185 °F) Display • SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 208 Storage temperature • Climate class Condensation Permitted IP65, IP68 Degree of protection in • accordance with EN 60529 NEMA 4X Degree of protection in • accordance with NEMA 250 SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 209 30 bar (435 psi) Measuring cell with inert liquid -20 … +100 °C (-4 … +212 °F) -20 … +85 °C (-4 … +185 °F) Measuring cell • 30 bar (435 psi) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 210: Construction

    Approx. 1.5 kg (3.3 lb) for aluminum enclosure Material Wetted parts materials • Process connection Stainless steel, mat. no. 1.4404/316L or Hastelloy C4, mat. no. 2.4610 Oval flange Stainless steel, mat. no. 1.4404/316L SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 211 Non-copper aluminum die casting GD-AlSi 12 or stainless steel precision • casting, mat. no. 1.4408 Standard: Polyester-based paint • Option: 2 coats: Coat 1: epoxy-based; coat 2: polyurethane Stainless steel nameplate • SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 212 Option: 2 coats: Coat 1: epoxy-based; coat 2: polyurethane Stainless steel nameplate • Mounting bracket Steel or stainless steel Measuring cell filling Silicone oil • Inert liquid • Process connection SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 213 Stainless steel Mounting bracket Steel or stainless steel Measuring cell filling Silicone oil • Neobee M20 • Inert liquid • (max. 120 bar g (2320 psi g) for oxygen measurement) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 214 Sealing material in the pressure caps Viton for standard applications • Copper for underpressure • applications on the mounting flange Minus side Stainless steel, mat. no. 1.4404/316L Seal diaphragm • SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 215: Display, Keyboard And Auxiliary Power

    Display, keyboard and auxiliary power Display and user interface Keys 3 for on-site programming directly at the device Display With or without integrated display (optional) • Cover with inspection window (optional) • SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 216: Certificates And Approvals

    -40 … +85 °C (-40 … +185 °F) temperature class T4 -40 … +70 °C (-40 … +158 °F) temperature class T5 -40 … +60 °C (-40 … +140 °F) temperature class T6 SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 217 =17.5 V, I = 570 mA = 45 V Linear barrier = 32 V, I = 132 mA, P = 1 W Effective inner capacitance = 6 nF = 1.1 nF SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 218: Profibus Communication

    Reset function because of injection: 1 byte • (totalizer mode and reset function because of injection) Internal preprocessing Device profile PROFIBUS PA Profile for Process Control Devices Version 3.0, Class B SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 219 Simulation function Pressure measurement Constant value • • Parameterizable ramp function • Sensor temperature Constant value • • Parameterizable ramp function • Transducer block "Electronics temperature" • Simulation function SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 220 Technical data 13.9 PROFIBUS communication PROFIBUS PA communication Pressure measurement Constant value • • Parameterizable ramp function • Electronics temperature Constant value • • Parameterizable ramp function • SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 221: Operating Instructions, 06/2013, A5E00053276-07

    ⑦ Mounting bracket (optional) ⑧ Process connection: -14 NPT, • Connection pin G A or • Oval flange • ⑨ Electronics side, display (longer for cover with inspection window) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 222 For Pg 13.5 with adapter, approx 45 mm (1.77 inches) Minimum distance for rotating Figure 14-1 Pressure transmitter SITRANS P DS III for absolute pressure, from the gauge pressure series, dimensions in mm (inches) SITRANS P DS III with PROFIBUS PA...

  • Page 223: Sitrans P Ds Iii For Differential Pressure, Flow Rate And Absolute Pressure From The Differential Pressure Series

    Dimension drawings 14.2 SITRANS P DS III for differential pressure, flow rate and absolute pressure from the differential pressure series 14.2 SITRANS P DS III for differential pressure, flow rate and absolute pressure from the differential pressure series ① Key cover ②...
  • Page 224 Dimension drawings 14.2 SITRANS P DS III for differential pressure, flow rate and absolute pressure from the differential pressure series Not for "FM + CSA [is + XP]" type of protection For Pg 13.5 with adapter, approx 45 mm (1.77 inches) 92 mm (3.62 inches) minimum distance for rotating the enclosure with display...
  • Page 225 Dimension drawings 14.2 SITRANS P DS III for differential pressure, flow rate and absolute pressure from the differential pressure series ① Key cover ② Blanking plug ③ Cover catch (only for "flameproof enclosure" type of protection) ④ Sealing plug, with valve (optional) ⑤...

  • Page 226: Sitrans P Ds Iii For Level

    Dimension drawings 14.3 SITRANS P DS III for level 14.3 SITRANS P DS III for level ① Key cover ② Blanking plug ③ Cover catch (only for "flameproof enclosure" type of protection) ④ Process connection: Minus side -18 NPT (EN 61518) ⑤...

  • Page 227: Sitrans P Ds Iii (Flush-Mounted)

    92 mm (3.62 inches) minimum distance for rotating the enclosure with display Figure 14-5 SITRANS P DS III (flush mounted) The screen consists of a SITRANS P DS III with an example flange. On this screen, the height is divided into H and H...

  • Page 228: Note 3A And Ehdg

    G3/4", G1" and G2" In accordance with DIN 3852 ⊘D ¾" 37 mm (1.5'') Approx. 45 mm (1.8'') 1" 48 mm (1.9'') Approx. 47 mm (1.9'') 78 mm (3.1'') Approx. 52 mm (2'') SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 229: F&B And Pharma Flange

    Approx. 52 mm (2'') 127 mm (5.0'') DIN 11864-1 Form A - sterile threaded sockets ⊘D 52 mm (2'') Approx. 52 mm (2'') 65 mm (2.6'') 78 mm (3.1'') 130 mm (5.1'') SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 230 Approvals EHEDG DIN 11864-3 Form A - sterile collar sockets ⊘D 77.5 mm (3.1'') Approx. 52 mm (2'') 91 mm (3.6'') 106 mm (4.2'') 130 mm (5.1'') Approvals EHEDG SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 231 Approx. 52 mm (2'') BioConnect connectors BioConnect screwed joint ⊘D 82 mm (3.2'') Approx. 52 mm (2'') 105 mm (4.1'') 115 mm (4.5'') 145 mm (5.7'') 2" 82 mm (3.2'') SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 232 Approx. 52 mm (2'') 90.9 mm (3.6'') 106 mm (4.2'') 119 mm (4.7'') 2" 64 mm (2.5") 2½" 77.4 mm (3.0'') 3" 90.9 mm (3.6'') 4" 119 mm (4.7'') Approvals EHEDG SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 233: Pmc Style

    120 mm (4.7'') Approvals EHEDG 14.4.4 PMC Style Connections for the paper industry PMC Style Standard ⊘D – – 40.9 mm (1.6'') Approx. 36.8 mm (1.4'') M44x1.25 cap nut SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 234: Special Connections

    63 mm (2.5'') Approx. 170 mm (6.7'') SMS connectors SMS sockets with union nut ⊘D 2" 84 mm (3.3'') Approx. 52 mm (2.1'') 2½" 100 mm (3.9'') 3" 114 mm (4.5'') SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 235 Approx. 52 mm (2.1'') 2½" 91 mm (3.6'') 3" 106 mm (4.2'') IDF threaded sockets ⊘D 2" 64 mm (2.5'') Approx. 52 mm (2.1'') 2½" 77.5 mm (3.1'') 3" 91 mm (3.6'') SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 236 Dimension drawings 14.4 SITRANS P DS III (flush-mounted) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 237: Spare Parts / Accessories

    Spare parts/accessories for SITRANS P DS III Selection and order data Order no. Mounting bracket and fastening parts For SITRANS P DS III, DS III PA and DS III FF For gauge pressure transmitter (7MF403.-..-..C.) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 238 Made of stainless steel • Mounting bracket and fastening parts For SITRANS P DS III, DS III PA and DS III FF For gauge pressure transmitter (7MF403.-..-..A., -..B. and -..D.) For transmitter for absolute pressure (7MF423.-..-..A., -..B. and - ..D.)
  • Page 239 Spare parts / accessories 15.2 Spare parts/accessories for SITRANS P DS III Selection and order data Order no. For SITRANS P DS III, DS III PA and DS III FF Including the fastening material 7MF4997-1BR Measuring point label 7MF4997-1CA not labeled (five pieces) •...

  • Page 240: Order Data For Simatic Pdm

    15.4 Ordering data for PROFIBUS accessories In Catalog IK PI you can find further accessories required for communication with our devices and PROFIBUS. See also IK PI Catalog (http://www.automation.siemens.com/net/html_76/support/printkatalog.htm) SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 241: Appendix

    • Programmable • Target group: Manufacturers and suppliers of equipment IEC 61511 Functional safety - Safety systems for the process industry Section 1-3 Target group: Planners, constructors and users SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 242: Literature And Catalogs

    Technical support (http://www.siemens.com/automation/csi/service) Service & Support on the Internet In addition to our documentation, we offer a comprehensive knowledge base on the Internet Service&Support (http://www.siemens.com/automation/service&support) There you will find: SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 243 ● Information about field service, repairs, spare parts and lots more under "Services." Additional Support Please contact your local Siemens representative and offices if you have any questions about the products described in this manual and do not find the right answers.
  • Page 244 Appendix A.4 Technical support SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 245: List Of Abbreviations/Acronyms

    Fieldbus Intrinsic Safety Concept Device master data HART Highway Addressable Remote Standard protocol for the transmission of information between field Transducer device and automation system F&B Food and beverage industry SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 246: Functional Safety

    Failure on Demand demand Safe Failure Fraction Proportion of safe failures: Proportion of failures without the potential to bring the safety- instrumented system into a dangerous or non-permissible functional status. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 247 A safety-instrumented system (SIS) executes the safety functions that are required to achieve or maintain a safe status in a system. It consists of a sensor, logic unit/control system and final controlling element. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 248 List of abbreviations/acronyms B.2 Functional safety SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 249: Glossary

    Fault tolerance N means that a device can execute the intended task even when N faults exist. The device fails to execute the intended function in the case of N+1 faults. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 250 Generic Station Description → Link is a coupler with a variable transmission speed. The transmission speed is a maximum of 12 Mbps (DP) to 31.25 kbps (PA). Non-volatile memory EEPROM → SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 251 The achievable SIL is determined by the following safety-instrumented characteristics: ● Average probability of failure on demand (PFD ● Hardware fault tolerance (HFT) ● Safe failure fraction (SFF) srli2 srlin2 → SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 252 If you have used one of these functions, the measuring range will have changed. This changed, remaining measuring range is called the zero point shift. The value indicated by the device in mode 18, is a positive pressure. SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

  • Page 253: Index

    Checking, 134 Firmware, 11 Checksum, 148 Flange, 31, 49 Configuration, 159 Flow, 23, 82 Connector Function block M12, 69 Analog input, 104, 114 Correct usage, Function chart, 33 CPU, 138 SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 254 Class-1 master, 37, 159 Setting the address, 159 Class-2 master, 37 Topology, 36 Measured value display, 79 PROFIsafe, 136 Measured value display, 79 Measuring accuracy, 133 Measuring cell, 134 Absolute pressure, 33 SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...
  • Page 255 Stabilizing valve, 171, 172, 173, 175 Status, 185 Status, 185 Status code, 185 Status code, 185 Status display, Structure, 24 Support, 242 Tank connection, 234 Test certificates, 15 Transducer block SITRANS P DS III with PROFIBUS PA Operating Instructions, 06/2013, A5E00053276-07...

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