KROHNE H250 M40 ESK4-Basic Supplementary Instructions Supplementary Instructions Download Page 1

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Signal converter for variable-area flowmeters

Description 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

Supplementary instructions

AD_H250_M40_PB_PA_R01_en_4002251801_PRT.book Page 1 Friday, March 21, 2014 1:14 PM

Summary of Contents for H250 M40 ESK4-Basic

Page 1: ...tion is only complete when used in combination with the relevant documentation of the flowmeter H250 M40 ESK4 H250 M40 ESK4 H250 M40 ESK4 H250 M40 ESK4 Supplementary instructions Supplementary instruc...

Page 2: ...plementation 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 setting...

Page 3: ...ary 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 instruct...

Page 4: ...o 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...

Page 5: ...asuring 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 c...

Page 6: ...FB Level Default setting Board temperature 2 Totalizer FB 2 Totalized volume flowrate Default setting Totalized mass flowrate 3 Totalizer FB 2 Totalized volume flowrate Totalized mass flowrate Defaul...

Page 7: ...ervice 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...

Page 8: ...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 suppo...

Page 9: ...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...

Page 10: ...lues 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 inva...

Page 11: ...vice in this case Physical block parameter FACTORY_RESET code 2712 reset station address to its default value is rejected If the hardware switch provides an invalid address 125 the switch is ignored b...

Page 12: ...cific Ident Number 4531hex Profile specific Ident Number 9740hex Profile specific Ident Number 9700hex Compatibility mode ESK3 PA F201hex Compatibility mode Profile 9740hex Automatic adaptation mode f...

Page 13: ...behaviour will improve interchangeability between devices of different vendors because only functions are available which are provided by all PROFIBUS PA variable area flowmeters Exchange is possible...

Page 14: ...tibility mode concerning the cyclic data transfer cyclic measurement values and diagnosis if the ESK4 PA transmitter shall be used for replacement of an ESK3 PA transmitter The ESK4 PA transmitter emu...

Page 15: ...dapt the measuring behaviour to ESK3 PA INFORMATION Although the cyclic behaviour of the ESK3 PA is emulated by the ESK4 PA transmitter the acyclic behaviour is not changed Therefore a DD DTM for ESK4...

Page 16: ...to a slot no data will be sent for the corresponding function block and all function block data following this empty module will move up one position Calibration Ident Number Selector Ident Number GS...

Page 17: ...float value Float Format according to IEEE Standard 754 Short Real Number 1 byte status value Float value Float value Float value Float value The following example describes the format of the float v...

Page 18: ...the cyclic data transfer by setting the parameter PRM_COND within the Set_Prm service data using an engineering tool e g DD DTM to write the parameter COND_STATUS_DIAG slot 0 index 43 Coding for both...

Page 19: ...23 22 21 20 0 1 0 0 1 0 x x substitute set 0 1 0 0 1 1 1 1 initial value 0 1 1 0 1 0 x x maintenance demanded 0 1 1 1 0 0 1 1 simulated value start 0 1 1 1 0 1 1 1 simulated value end 0 1 1 1 1 0 x x...

Page 20: ...t checking Classic Status Classic Status Classic Status Classic Status The Classic Status is implemented to provide compatibility to systems which are not configured for Condensed Status The coding is...

Page 21: ...e value 0 1 0 0 1 0 substitute set 0 1 0 0 1 1 initial value 0 1 0 1 0 0 sensor conversion not accurate 0 1 0 1 0 1 engineering unit violation unit not in the valid set 0 1 0 1 1 0 sub normal 0 1 0 1...

Page 22: ...ter to the slave via the parameter SetTot ModeTot Total cyclic transfer of the totalizer value with status to the master cyclic control data from master to the slave via the parameter ModeTot SetTot M...

Page 23: ...gation The following tables show the diagnosis events which are reported for different settings The bit number is equal to the counting within the GSD file It represents the position in the device rel...

Page 24: ...tion of the error 36 yes Coldstart Device is reset to its Factory Default settings because of a user request or exchange of the basic module serial number is changed Recover user specific parameter se...

Page 25: ...ication limits with regard to temperature of the medium and ambient temperature If process conditions are within the specified limits send the device back to the manufacturer with an indication of the...

Page 26: ...e of the basic module serial number is changed Recover user specific parameter settings 39 yes Ident_Number violation Ident Number Selector was modified while cyclic data transfer was active To clear...

Page 27: ...r for checking 67 1 No ProcessCal Activate linearization or carry it out again HART communication and linearization software are required the original calibration values must be known or send the devi...

Page 28: ...the oil gas industry Measuring systems for the marine industry Head Office KROHNE Messtechnik GmbH Ludwig Krohne Str 5 47058 Duisburg Germany Tel 49 203 301 0 Fax 49 203 301 103 89 info krohne com KRO...

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