2 ITEMS INCLUDED WITH SUPPLY.................................................................................................................................................3
4.3.1Manufacturer specific GSD file: KROHF501.GSD........................................................................................................................4
4.3.2Profile specific GSD file: PA_9741.GSD .........................................................................................................................................6
4.4CYCLIC DATA EXCHANGE .....................................................................................................................................................................6
4.5DATA S TRUCTURE OF FUNCTION BLOCK OUTPUT VALUES............................................................................................................6
4.5.1Float Value .............................................................................................................................................................................................6
5.1INTERCONNECTION OF DEVICES IN THE HAZARDOUS AREA.............................................................................................................8
5.3SHIELDING AND GROUNDI NG................................................................................................................................................................8
6 MENU SETTINGS FOR PROFIBUS -PA ..........................................................................................................................................9
7 IMPORTANT NOTES.............................................................................................................................................................................9
7.1PARAMETER “METER_TYPE” OF UFC030...........................................................................................................................................9
8 TECHNICAL DATA ................................................................................................................................................................................10
9 DEVICE DESCRIPTION FOR THE SIMATIC PROCESS DEVICE MANAGER (PDM)...............................................11
Supplementary documentation UFC030 with PROFI BUS-PA
1 General
These Instructions are supplementary to the ”Installation and Operating Instructions (Reference Manual) UFC030
(UFC 3 Beam)”. The details given there, in particular the Safety Information, are valid and should be observed. These
Supplementary Instructions provide only additional information for device operation and connection to a PROFIBUSPA fieldbus.
2 Items included with supply
In addition to the standard scope of supply, these Supplementary Instructions for the UFC030 with PROFIBUS -PA
interface plus a diskette containing all PROFIBUS device data fi les (GSD files) available of all KROHNE devices will
be included.
3 Software history
Issued
Signal converter User program Instructions
month/year Hardware Firmware Hardware Operating
system
10/03 PROFIBUS-PA
Module+Device
MOD3 /031010 PC Windows 95,
98, NT 4.0,
ME, 2000
4 PROFIBUS-PA
Engineering or operation
Control system (PLC)
Class 1 master
PROFIBUS-DP, up to 12 Mbit/s
Analog I/O module
4-20 mA
HART device
control tool
Class 2 master
Power
Supply
Segment
coupler/link
PROFIBUS-PA
KROHNE
1 2 3 4 5 6
Software Device User program
PDM ≥ V 5.2
Segment
coupler/link
PROFIBUS-PA
KROHNE
1 2 3 4 5 6
1000
kg/h
036872
kg
900
800
KROHNEH250
700
600
SN 586 677/01-03MC H250/RR/M9/K2/ESK-Z
C K25.2 1.4571
500
F CIV 25 1.4571MD 1997
400
C2H50H
D 0.93 kg/l
300
V 2.5 mPa.sT 23.5 C
200
P 0.4 MPa
100RP
FIA 1025
-- --
The diagram above shows a typical instrumentation with PROFIBUS -PA devices in hazardous and non-hazardous
locations, including connections of conventio nal devices (e.g. with 4-20mA signals) to the PROFIBUS-PA.
The PROFIBUS-PA is normally connected to a segment coupler which, among other things, carries out the
conversion to the PROFIBUS -DP. Here, it needs to be noted in particular that the segment coupler is normally set to
a fixed baud rate on the DP side.
Further information on the planning and operation of PROFIBUS-PA networks is to be found in the KROHNE
brochure ”PROFIBUS -PA Networks”.
Supplementary documentation UFC030 with PROFI BUS-PA
4.1 Profiles
The UFC030 (UFC 3 Beam) supports the PROFIBUS-PA Profile Version 3.0. Additionally, all relevant parameters of
the device are accessible via the PROFIBUS -PA interface (if the manufacturer specific Ident-no is chosen and the
manufacturer specific GSD-file version is used).
The UFC030 (UFC 3 Beam) defines the following blocks:
•One physical block.
This block contains the parameters defined in Profile 3.0.
•One transducer block for ultrasonic flow meter devices.
This block provides the parameters and functions defined in Profile 3.0. Attached you will find here all the values
not defined by the profile.
•Three “Analog Input (AI)” function blocks: “Volume Flow”, “Speed of Sound” and “CORR. Volume Flow or HEAT
Flow (depends on the current device type selection)”.
•Two “Totalizer (TOT)” function blocks: totalized “Volume” and totalized “CORR. Volume or HEAT (depends on
the current device type selection)”.
4.2 Services
The UFC030 supports the following PROFIBUS -PA services being defined in the PROFIBUS-PA Profile V3.0:
1. DDLM_Set_Slave_Add
2. DDLM_Get_Cfg
3. DDLM_Set_Prm
4. DDLM_Chk_Cfg
5. DDLM_Slave_Diag
6. DDLM_Data_Exchange
The services mentioned above will enable the customer to set the PROFIBUS -PA station address (1), to configure
the data telegram for the cyclic data exchange (3/4), to read back the current PROFIBUS -PA configuration (2) and to
read the current Diagnostic data (5).
The service “cyclic data exchange” (6) will be used to transmit the function block output values (measurement data)
to a master.
4.3 GSD Files
All available GSD files of KROHNE devices – including those of UFC030 (UFC 3 Beam), of course - are supplied
together with each device. The GSD file contains information that will be needed for project planning of the
PROFIBUS-DP/PA communication network. The relevant data files must be loaded into the project planning
system/master system before start -up of the bus system.
The UFC030 (UFC 3 Beam) is supporting the entire PROFIBUS -PA profile V 3.0. The device has two Ident-no.
and two GSD files:
•Ident-no. “F501” belongs to the GSD file KROHF501.GSD and includes the complete functionality of the
ultrasonic flow meter.
• The application of the manufacturer independent Ident-no. “9741” (GSD file “PA_9741.GSD”) provides
interchangeability of devices, i.e. an exchange of mass flow meters of different vendors.
Please follow the instructions in the manual of the host supplier when installing the GSD File (KROHF501.GSD,
UFC3_B_n.bmp, UFC3_B_n.dib) into the PLC.
4.3.1 Manufacturer specific GSD file: KROHF501.GSD
Supplementary documentation UFC030 with PROFI BUS-PA
KROHNE delivers the GSD files with the entire device functionality, which is listed below:
Block Number Standard-Configuration
(function block output value)
KROHF701.GSD
Ident-No. F701
1 Volume Flow AI-FB
2 Speed of Sound AI-FB
3 Volume Totalizer Totalizer-FB
4 CORR. Volume Flow or HEAT Flow * AI-FB
5 CORR. Volume- or HEAT- Totalizer * Totalizer-FB
AI = Analog Input Function Block
FB = Function Block
•= depends on the current device type selection
Important Notes:
1. To project the PROFIBUS communication network you have to allocate each block to a function. On the PC-S7
from Siemens this will be done with the Tool named “HW - Config”. This tool offers the functions described as
follows:
2. It is possible to program an “Empty” block (the code of an “Empty” block is defined as 0x00) on each block
number. This means, that for this block no data are transmitted in the cyclic data telegram.
3. There is NO “Totalizer (TOT)” function block allowed on block position 1, 2 and 4! A “Analog Input (AI)” func tion
block or a “Empty” block is allowed here only! That means a “Totalizer (TOT)” function block is not possible at
this positions.
Note: All codes of “Analog Input (AI)” - and “Totalizer (TOT)” – function blocks valid for use will be find in the
corresponding GSD files.
4. There is NO “Analog Input (AI)” function block allowed on block position 3 and 5! A “Totalizer (TOT)” function
block or a “Empty” block is allowed here only! That means a “Analog Input (AI)” function block is not possible at
this positions.
5. There is a choice of 4 different totalizer functions, which can be allocated to the blocks 3 and / or 5. The 4
functions are defined as follows:
Function “Totalizer” cyclic transfer of the totalizerwith status to the master
Function “SetTot_Total” cyclic transfer of the totalizerwith status to the master + cyclic control data
from master to the device via the Bytes SetTot
Function “ModeTot_Total” cyclic transfer of the totalizerwith status to the master + cyclic control data
from master to the device via the Bytes ModeTot
Function “SetTot_ModeTot_Total” cyclic transfer of the totalizerwith status to the master + cyclic control data
from master to the device via the Bytes SetTot and after that ModeTot
Both, the Byte SetTot and ModeTot are being sent cyclical from the Master to the device if these bytes are
inserted as output data via the to the PLC configurator. The meaning of these control bytes are as follows:
SetTot:
SetTot =0: Totalizer is totalizing.
SetTot =1: Totalizer will be reset to 0 and stays at 0 until SetTot is switched back again to 0. If the value of
SetTot changes from “1” to “0” the totalizer starts counting from 0.
SetTot =2: Totalizer is set to the value defined by PresetTot. PresetTot can be written via a acyclic master
(totalizer in block 3 = Slot 3 Index 32; totalizer in block 5 = Slot 5 Index 32).If the value of SetTot
changes from “1” to “0” the totalizer starts counting from the current value defined by PresetTot.
SetTot > 2: not allowed
ModeTot:
ModeTot = 0 totalizer totalizes positive and negative values.
Supplementary documentation UFC030 with PROFI BUS-PA
ModeTot = 1 totalizes only positive values.
ModeTot = 2 totalizes only negative values.
ModeTot = 3 totalizer is stopped, no totalization will be done.
ModeTot > 3 not allowed
6. The standard block configuration may be changed by the customer but using the default settings is highly
recommended. If the standard block configuration should be changed by the customer a acyclic master tool
must be used to change the “channel parameter” value of the block which should be connected to another
transducer output value.
4.3.2 Profile specific GSD file: PA_9741.GSD
The functionality of the profile specific GSD file is limited. This GSD file includes only three blocks:
Volume Flow, Speed of Sound (Sound Velocity) and Volume Flow totalizer.
You need the PA_9741 file to use this functionality. Before this, the communication has to be projected and it has to
be switched from “full functionality” to “interchangeable basic configuration” by using a master class 2 tool
(IDENT_NUMBER_SELECTOR: Slot 0, Index 40 change byte value from 1 to 0). After this has been done, the
device has to be projected by using the PA _9741 file.
4.4 Cyclic data exchange
During network configuration the user has to define which function block outputs of the UFC030 (UFC 3 Beam)
should be transferred cyclically to the master. The following function block outputs are available in this order:
1. Volume Flow and Status
2. Speed of Sound und Status
3. Volume Totalizer and Status
4. CORR. Volume Flow or HEAT Flow * and Status
5. CORR. Volume- or HEAT- Totalizer * and Status
•depends on the current device type selection
Note: If a function block output is chosen for cyclical data transfer the value "Not_a_Number" (0x7FFFFFFF) will be transmitted if the
function block itself is not available (due to the current device type selection). If so the status is "Bad-Out of Service".
Network configuration will be done by a master class 2 tool using one of the GSD files described above. The function
block outputs which should be transmitted cyclically may be chosen without any restriction. The order of transmission
always remains the same even if a function block is defined as an “Empty” block (if so no function block output data
will be send to the master and all function block outputs following the “Empty” block will move up one position).
4.5 Data Structure of Function Block Output Values
The data structure of function block outputs consists of 5 bytes: a 4 byte float value (Float Format according IEEE
Standard 754 Short Real Number) followed by a 1 byte status value. If all 5 function block outputs have been
projected (see above), 25 byte will be transmitted.
0 0 = ok
0 1 = low limited
1 0 = high limited
1 1 = constant
Check the first two quality bits in order to get the quality information of the measurement value:
Good (non Cascade) function block output value is ok and can be used without restrictions
Good (Cascade) will not be supported, because it is not applicable for the device
Uncertain function block output value can be used but the accuracy can not be guaranteed (e.g. function
block outputs value has been frozen or A/D converter is saturated or out of range)
Bad function block output value is bad don´t use it!
Supplementary documentation UFC030 with PROFI BUS-PA
The „Quality-Substatus“- and „Limit“-Bits will be used for further diagnostics or limit checking.
Attention:The status should be watched always because a valid number will be transmitted even if the status of
the measurement value is bad or uncertain. This is the only way to check the meaning of the
transmitted measurement values.
4.6 Diagnosis
If the device internal diagnostic functions will detect an error additional information will be send to the Master (for
further information have a look at the UNIT_DIAG_BIT(i) definitions of the corresponding GSD-file)
5 Electrical Connection
For a detailed description please check the Installation and Operating Instructions manual of the device.
5.1 Interconnection of devices in the hazardous area
A PROFIBUS -PA network in the hazardous area should be projected in accordance with actual regulations:
•all electrical components which should be connected to the bus must be approved according the hazardous area
regulations,
•the approved input values of the field devices (Uo, Io, Po) must match with the output values of the power supply
(e.g. segment coupler) which means Ui ≤ Uo, Ii ≤ Io and Pi ≤ Po.
• the maximum length of each trunk cable does not exceed 1000 m,
• the maximum length of each spur cable does not exceed 30 m,
• the values of the cable are within the following ranges R´=15...150Ω/km; L´=0,4...1mH/km; C´=80...200nF/km,
5.2 Bus cable
Cable length between any devices should be less then 1900 m. Further limitations to the cable than the hazardous
area limitations are not existent. Nevertheless a twisted pair and overall shielded cable is strongly recommended. A
good quality cable could have the following data (Type A):
impedance at 31.25 kHz
DC resistance (per conductor)
capacity unbalanced < 2 nF/km
attenuation at 39 kHz < 3,0 dB
5.3 Shielding and grounding
For an optimum electromagnetic compatibility of systems it is extremely important that the system
components and particularly the bus cables connecting the components be shielded. This shields should be
connected in a way that they will look like “one non interrupted, unbroken shield” (if possible).
Hence it follows that, for use in non-hazardous duty systems , the cable shield should be grounded as often
as possible.
In “Ex“ systems with adequate equipotential bonding in the hazardous and non-hazardous location along
the entire fieldbus installation, multiple grounding of the shield is also of advantage.
Note: The use of twisted and shielded cables is strongly recommended, otherwise EMC protection of the
ultrasonic flow meter cannot be assured.
Supplementary documentation UFC030 with PROFI BUS-PA
5.4 PROFIBUS-PA connection
Connect the bus cable as shown in the figure.
•Connect the cable cores to the terminals
described as PA+ and PA-.
•Polarity reversal will not have any effect.
PEPE
•The cable shield should be connected with
minimum length to the PE functional ground.
•The equipotential bonding conductor must be
functional ground
II+
D +
D -
L
N
Device Model:
EX-modis Version 1 / 2
}
}
}
Current / Puls Output
(optional, no communication)
PROFIBUS-PA Interface
UFC5000 Power Supply
GND
A1
A2
l / C / P
D +
D -
L
N
Device Model:
Aqua-sonic 2
Circuit Ground
}
Analog Input 2
}
Analog Input 1
}
Puls- / Current-Outp. / Digital Inp.
}
(optional, no communication)
}
PROFIBUS-PA Interface
}
UFC5000 Power Supply
6 Menu Settings for PROFIBUS-PA
For a detailed description please check the Installation and Operating Instructions manual of the device. The
following settings should be done before the UFC030 (UFC 3 Beam) will be connected with the PROFIBUSPA network. Note that the address can be also set by using the communication service “Set slave address”
via the master tool.
Function (Fct.) Description
3.9.1 PROTOCOL
3.9.3 PR/FF ADDR
The PROFIBUS address can be changed via the PROFIBUS ser vice “Set_Slave_Address”. The input range is
0...125 according to the PROFIBUS specification. Address 126 is the default address and cannot be set via the
PROFIBUS-PA service “set_slave_add”.
• PROFIB PA
• Set address
Range: 000 - 126 for PROFIBUS-PA (default 126)
7 Important Notes
7.1 Parameter “meter_type” of UFC030
If “meter_type” will be changed by a service technician the below mentioned procedure must be carried out
step by step to avoid UFC030 malfunctions depending on an inconsistent data set of the PROFIBUS-PA
module.
Supplementary documentation UFC030 with PROFI BUS-PA
9 Device Description for the SIMATIC Process Device Manager (PDM)
9.1 Installation
If the UFC 030 Device Description is not already installed on the PDM System a so called Device Install is needed
(available on floppy disk from KROHNE or as download from KROHNE internet page).
For installing the DD with the Device Install refer to the “PDM Manual” section ”Utilities” / “Device Install". Please read
also the “readme.txt”, which is contained in the Device Install.
9.2 Operating
Refer to the UFC 030 Menu Tree PDM (Attachment A).
Due to PROFIBUS and PDM requirements and conventions the UFC 030 operation differs from operation via local
keypad and the following peculiarities should be kept in mind:.
•The online help of each parameter contains its function number as a reference to the device’s local display and
the “Installation and Operating Instructions”.
•If the device is operated via its local keypad no write operation can be performed via the PROFIBUS interface at
the same time. Please check in case the flag ’Device is controlled via its keypad’ in ‘View / Details / Signal
Converter State’.
•There are several complex dependencies between the parameters of the UFC 030. These dependencies can’t
be handled correctly to the full extent in the online dialogs of the PDM parameter table. Therefore it is
recommendable to switch these dialogs for the parameter table off. (See menu ‘Options / Customize / Table /
online dialog in the table available’).
•In order to find out whether the setting of the device is still the same as the parameter set stored in PDM
compare the ‘Static Revision No.’ of the respective PROFIBUS Block. (The current Static Revision No. is
displayed on the window ‘View / Device Status / <block name>’).