KROHNE H250 M40 ESK4-Basic Bedienungsanleitung
Signal converter for variable-area flowmeters
Description of PROFIBUS interface
Description of PROFIBUS interfaceDescription of PROFIBUS interface
Description of PROFIBUS interface
The documentation is only complete when used in combination with the relevant
documentation of the flowmeter.
H250 M40 ESK4
H250 M40 ESK4H250 M40 ESK4
H250 M40 ESK4 Supplementary instructions
Supplementary instructionsSupplementary instructions
Supplementary instructions
© KROHNE 03/2014 - 4002251801 - AD H250/M40 PROFIBUS R01 en
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CONTENTS
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H250 M40 ESK4
1 Safety instructions 3
1.1 Installation........................................................................................................................ 3
1.2 Scope of the document..................................................................................................... 3
1.3 Scope of delivery............................................................................................................... 3
2 PROFIBUS PA 4
2.1 Software history ............................................................................................................... 4
2.2 Device overview ................................................................................................................ 4
2.3 PROFIBUS PA Profile implementation ............................................................................ 5
2.4 Technical data................................................................................................................... 6
3 Electrical connection 8
3.1 Topology of a PROFIBUS PA network .............................................................................. 8
3.2 Electrical connection for signal converter....................................................................... 9
4 Commissioning / Operation 10
4.1 Hardware settings ..........................................................................................................10
4.2 GSD files ......................................................................................................................... 11
4.3 Ident. Number selector .................................................................................................. 12
4.4 Summary ........................................................................................................................ 16
4.5 Configuration of cyclic data transfer.............................................................................. 16
4.6 Cyclic data....................................................................................................................... 17
4.6.1 Input data .............................................................................................................................. 17
4.6.2 Output data............................................................................................................................ 22
4.7 Diagnosis ........................................................................................................................ 23
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SAFETY INSTRUCTIONS 1
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Safety instructions
1.1 Installation
If the ESK4 Device Description is not already installed on the PDM System a so called Device
Install ESK4 PROFIBUS-PA PDM is needed (available as download from KROHNE ‘Download
Center’on the internet or on CD-ROM from KROHNE). For installing the DD with the Device
Install refer to the “PDM Manual”section:”Integrating Devices”. Please read also the
“readme.txt”, which is also contained in the Device Install.
1.2 Scope of the document
These instructions are supplementary to the standard product documentation of the signal
converter. The details described herein, in particular the safety information, are valid and shall
be adhered to. The present supplementary instructions provide additional information for the
device when it is connected to a PROFIBUS network.
1.3 Scope of delivery
A device for PROFIBUS communication is supplied with:
Supplementary instructions for the PROFIBUS PA interface (this document)
INFORMATION!
The information in this document only contains the data applicable to the PROFIBUS module.
The technical data in the signal converter Handbook is valid in its current version, provided that it
is not rendered invalid or replaced by these supplementary instructions.
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2PROFIBUS PA
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PROFIBUS PA
2.1 Software history
2.2 Device overview
The ESK4-PA transmitter has a modular design. It consists of the following components:
•ESK4-Basic module
•ESK4-PA module
The ESK4-Basic module performs the measuring while the ESK4-PA module provides
communication technology and power supply for both modules.
Depending on the factory calibration and the assembled sensor the ESK4-PA transmitter can be
used to perform flow or level measurement.
The ESK4-PA transmitter has a MBP interface (Manchester coded, bus powered) to connect the
device to a PROFIBUS PA network. The software supports the PROFIBUS PA Profile 3.02. Both,
cyclic services towards a control system (e.g. PLC) as well as acyclic services for operating with
engineering tools (e.g. DD/DTM based tools) are supported.
The PROFIBUS station address can be set via a hardware switch or via PROFIBUS services.
Issued Signal converter Application program System integration
Mth./
year
Hardware Firmware Hardware Software Driver Version Model name
07/12 PROFIBUS
PA module
Ident. No.
4000769602
V2.1.x / 120717 Simatic
PCS7
or
other SPS
of other
manufact.
HW Config
or
other
Software of
other SPS
manufact.
GSD (device
specific) KR014531.GSD ESK4-PA
GSD (profile
specific) PA139740.GSD Flow 1 AI 1 TOT
(Phy MBP)
Laptop / PC PDM
(≥6.0 SP5) DD
(Ident.-No.)
Pactware DTM ≥
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PROFIBUS PA 2
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2.3 PROFIBUS PA Profile implementation
The PROFIBUS PA Profile 3.02 defines standardized parameters and functions for PROFIBUS
devices used for process control. It describes a PROFIBUS device as a function block application,
i.e. parameters and functions are grouped into different blocks. In the ESK4-PA transmitter the
following blocks are implemented:
The Analog Input Function Block and the Totalizer Function Blocks provide the data interface
towards a process control system (e.g. a PLC); i.e. their input/output data can be read/written by
the control system. In a PROFIBUS network this is done via cyclic communication services.
From the PROFIBUS point of view the ESK4-PA transmitter is designed as a modular device with
three slots. While the Analog Input Function Block is assigned (as virtual module) to slot 1 the
Totalizer Function Blocks are assigned (as virtual modules) to slot 2 and 3. This assignment is
fixed and cannot be modified by the user. Nevertheless the measuring data for each Function
Block is selectable according to the following tables:
Device calibrated for Volume Flow
The calibration units are used as default units.
Block Usage
1 Physical Block (PB) contains identification and diagnosis parameters of the device
1 Flow Transducer Block
(TB-Flow) contains parameters and functions to control the flow measurement
1 Level Transducer Block
(TB-Level) contains parameters and functions to control the level measurement
1 Analog Input Function Block
(AI-FB) contains parameters and functions to control the measuring output;
provides the measuring value(s)
2 Totalizer Function Blocks
(Tot-FB) contains parameters and functions to control/provide the counter
value(s)
Slot
SlotSlot
Slot Module type
Module typeModule type
Module type Measuring data
Measuring dataMeasuring data
Measuring data 1
1AI-FB Volume flowrate (Default setting)
Mass flowrate
Board temperature
2Totalizer-FB Totalized volume flowrate (Default setting)
Totalized mass flowrate
3Totalizer-FB Totalized volume flowrate
Totalized mass flowrate (Default setting)
1Selection of measuring data can be changed by modifying the channel parameter via acyclic PROFIBUS services.
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2PROFIBUS PA
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Device calibrated for Mass Flow
The calibration units are used as default units.
Device calibrated for Level
The default unit for level is [%]. Calibration unit is used as default unit for board temperature.
2.4 Technical data
Slot
SlotSlot
Slot Module type
Module typeModule type
Module type Measuring data
Measuring dataMeasuring data
Measuring data 1
1AI-FB Volume flowrate
Mass flowrate (Default setting)
Board temperature
2Totalizer-FB Totalized volume flowrate
Totalized mass flowrate (Default setting)
3Totalizer-FB Totalized volume flowrate (Default setting)
Totalized mass flowrate
1Selection of measuring data can be changed by modifying the channel parameter via acyclic PROFIBUS services.
Slot
SlotSlot
Slot Module type
Module typeModule type
Module type Measuring data
Measuring dataMeasuring data
Measuring data 1
1AI-FB Level (Default setting)
Board temperature
2Totalizer-FB 2 Totalized volume flowrate (Default setting)
Totalized mass flowrate
3Totalizer-FB 2 Totalized volume flowrate
Totalized mass flowrate (Default setting)
1Selection of measuring data can be changed by modifying the channel parameter via acyclic PROFIBUS services.
2Totalizing is not active if the device is calibrated for level measurement.
Hardware
Type PROFIBUS MBP interface according to IEC 61158-2 with 31.25 kbit/s;
voltage mode (MBP = Manchester Coded Bus Powered)
Polarity Independent of polarity at electrical connection
Base current 16 mA
FDE Separate fault disconnection electronics provided
(FDE = Fault Disconnection Electronics)
Max. error current 23 mA
Start current after 10ms Lower than base current
Electrical connections
Device power supply Bus powered 9...32 VDC - not intrinsically safe
Bus powered 9...24 VDC - intrinsically safe
Basic current 16 mA
Maximum error current 23 mA
Start current after 10 ms lower than basic current
Polarity sensitivity No
Minimum cycle time 250 ms
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PROFIBUS PA 2
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Software
Supported GSD KR014531.GSD
PA139740.GSD
PA139700.GSD
KROHF201.GSD
YP01F201.GSD
Device profile PROFIBUS PA Profile V3.02; conformance class B, compact
Address setting Default: 126
Hardware switch: 0…126/selection via PROFIBUS service
Set_Slave_Add.
PROFIBUS service Set_Slave_Add: 0...125
Factory_Reset=2712: 126
Write protection Password and/or hardware switch
SAP´s 2× MS1 SAPs –acyclic interface to PLC
3× MS2 SAPs –the number of MS2 Service Access Points is typically equal to
the maximum number of master class 2 tools
Function blocks 1 Physical Block
1 Flow Transducer Block (Variable area)
1 Level Transducer Block
1 Analog Input Function Block
2 Totalizer Function Blocks
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3ELECTRICAL CONNECTION
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Electrical connection
3.1 Topology of a PROFIBUS PA network
The following diagram shows a typical network configuration with PROFIBUS PA devices in
hazardous and non-hazardous areas, as well as the connection of conventional non-PROFIBUS
devices (e.g. with 4 …20 mA signals) to a PROFIBUS network.
The PROFIBUS PA segment is connected to a segment coupler which, among other things,
provides the conversion to the PROFIBUS DP bus line. In addition it provides the power supply for
bus–powered PROFIBUS PA devices. Refer to the instruction manual of the segment coupler
concerning the DP bus parameters, e.g. the supported baud rates.
Refer also to the PROFIBUS PA User and Installation Guideline (Version 2.2, February 2003 PNO
Order No. 2.092).
Figure 3-1: PROFIBUS PA network
1 Control system (PLC); class 1 master
2 Engineering or operation control tool; class 2 master
3 PROFIBUS DP network with max. 12 Mbit/s
4 PROFIBUS PA segment coupler DP / PA
5 PROFIBUS PA network with 31.25 kbit/s
6 HART®device
7 More devices with 4…20 mA
8 Analogue I/O module
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ELECTRICAL CONNECTION 3
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3.2 Electrical connection for signal converter
Bus cable - Shielding and grounding
The statements of the FISCO model only apply if the used bus cable meets the required
specifications.
In order to ensure optimum electromagnetic compatibility of systems it is important that the
system components, and in particular the bus cables, are shielded. These shields must have as
few gaps as possible.
Polarity reversal has no effect on the function. The cable shield should be connected with
minimum length to the functional ground FE.
ESK4-PA
•2-wire bus powered
•Protected against reverse polarity
•Foundation Fieldbus
•Bus supply voltage 9...32 VDC
•Nominal current 16mA
DANGER!
The signal converter must be properly grounded to avoid personnel shock hazard. All directions,
operating data and connection diagrams do not apply to devices used in hazardous areas; in such
cases, read the special Ex instructions without fail!
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4COMMISSIONING / OPERATION
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Commissioning / Operation
4.1 Hardware settings
A hardware switch is available at the ESK4-PA module to set the PROFIBUS station address as
well as to activate a hardware write protection. It is realized by a switch with 8 separate
switches.
The actual station address is calculated by adding the corresponding values shown in the
diagram above. Each value depends on the setting of its corresponding switch. Default setting
for each switch is “off”; i.e. write protection is disabled and station address set to an invalid value
(127).
According to the PROFIBUS PA Profile 3.02 the following rules are considered in conjunction
with the hardware switch:
1 Power supply D / D-
2 Hardware switch
3 Connection to basic module
Function Value (off) Value (on) Label
Write protection disabled enabled WP
Station address + 64 + 0 64
+ 32 + 0 32
+ 16 + 0 16
+ 8 + 0 8
+ 4 + 0 4
+ 2 + 0 2
+ 1 + 0 1
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Dieses Handbuch passt für folgende Modelle
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