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2.  ABOUT PROFIBUS PA

2-1

All Rights Reserved. Copyright © 2006, Rota Yokogawa 

IM 01R01B02-01E-E    5th edition October 01, 2020 -00

2.  About PROFIBUS PA

2.1  Outline

PROFIBUS is a registered trademark of PROFIBUS Nutzerorganisation e.V., Karlsruhe, Germany.

PROFIBUS is a manufacturer-independent and open fieldbus communication protocol based on the interna

-

tional standards IEC 61158 and IEC 61784. It covers a wide range of applications in manufacturing and  

process control systems. Profibus PA is a bi-directional digital communication protocol for field devices, which 

offers an advancement in implementation technologies for process control systems and is widely employed 

by numerous field devices.

RAMC PROFIBUS communication type employs the specification standardized by the PNO, and provides 

interoperability between Yokogawa devices and those produced by other manufacturers.  

2.2  Internal Structure of RAMC PROFIBUS PA

RAMC contains three function blocks which are implemented in accordance with Profile 3.02.

(1)  Physical block

 

•  Manages the status of RAMC hardware.

 

•  Automatically informs the host of any detected faults or other problems.

(2)  Transducer block

 

•  Converts sensor output to flow rate signal and transfers to AI function block.

(3)  AI function block

 

•  Conditions raw data from the Transducer block.

 

•  Outputs flow rate signals.

 

•  Carries out scaling extraction.

2.3  Logical Device Structure

Figure 2.1 Logical Device Structure                                                                                        

Device Management

 

Physical Block

 

 
 
 
 

 

Transducer 
Block

 

AI Function 
Block

 

 

Sensor

 

Output

 

RAMC PROFIBUS PA

 

 

Sensor

 

output

 

Summary of Contents for ROTAMETER RAMC

Page 1: ...pyright 2006 RYG 5th edition October 2020 RYG ROTAMETER RAMC Variable Area Flowmeter PROFIBUS PA Communication Type Rota Yokogawa GmbH Co KG Rheinstr 8 D 79664 Wehr Germany IM 01R01B02 01E E supplementary instructions to standard RAMC User s Manual IM 01R01B02 00E E ...

Page 2: ...4 2 Important Device Settings 4 1 4 3 Cyclic Data Exchange 4 2 4 4 Setting of Write Protection 4 2 4 5 Using the Keys 4 2 4 6 Menu Structure 4 3 5 Block Setting 5 1 5 1 Parameters and Initial Settings 5 1 5 2 Physical Block PB Parameters 5 1 5 3 Analog Input AI Block Parameters 5 2 5 4 Transducer Block TB Parameters 5 3 6 Status and Diagnostic Information 6 1 6 1 Status description 6 1 6 2 Diagnos...

Page 3: ...ters for each Block of RAMC A 1 A1 1 Physical Block A 1 A1 2 Al Function Block A 4 A1 3 Transducer Block A 7 Appendix 2 Application Setting and Change of basic Parameters A 11 A2 1 Applications and Selection of Basic Parameters A 11 A2 2 Setting and Change of Basic Parameters A 12 A2 3 Setting the AI Function Blocks A 13 CONTENTS ii All Rights Reserved Copyright 2006 Rota Yokogawa IM 01R01B02 01E ...

Page 4: ...2 00 E General Specifications GS GS01R01B02 00E E 1 3 General items This manual is additional to IM01R01B02 00 E For safety instructions and warranty please see chapter 1 of IM01R01B02 00 E This manual contains a description of the RAMC Metal Rotameter with PROFIBUS PA Communication Type PROFIBUS PA communication type is similar to the HART communication type in terms of basic performance and oper...

Page 5: ...by numerous field devices RAMC PROFIBUS communication type employs the specification standardized by the PNO and provides interoperability between Yokogawa devices and those produced by other manufacturers 2 2 Internal Structure of RAMC PROFIBUS PA RAMC contains three function blocks which are implemented in accordance with Profile 3 02 1 Physical block Manages the status of RAMC hardware Automati...

Page 6: ...for experimental purposes For operation of the master refer to the instruction manual for each master No details of the master are explained in the rest of this manual Cable NOTE The PROFIBUS specification must be regarded Two core twisted and shielded cables are recommended otherwise the EMC requirements for industrial flow meters can not be guaranteed EN 50170 specifies two types of bus cables F...

Page 7: ...he fieldbus terminals 2 and 3 3 2 1 Figure 3 2 Connector at transmitter Figure 3 3 RAMC PA Overview CAUTION If the fieldbus device is operated at ambient temperatures above 50 C the supply voltage of the device must be above 9 5 V For installation in hazardous area chapter 7 must be regarded Operation keys Calibration EEPROM Electronic transmitter LC display Cable gland Connector acc figure 3 2 Pr...

Page 8: ...4 3 Table 4 2 Initial settings of Transducer Block Item Settings for Volume flow Settings for Mass flow Parameter VOLUME_FLOW_UNITS Choose unit initially set to unit specified when ordered Not active 1 Volume flow passivated Parameter MASS_FLOW_UNITS Not active 1 Mass flow passivated Choose unit initially set to unit specified when ordered NOTE Change of the parameters VOLUME_FLOW_UNITS to MASS_FL...

Page 9: ... of the Process Variable PV 4 4 Setting of Write Protection A write protection is a function to forbid changing of parameters It is possible to set the software write protection by the Physical Block parameter WRITE_LOCKING When WRITE_LOCKING is 0 Lock the status of write protect becomes protected mode When WRITE_LOCKING is 2457 Disabled the status becomes unprotected mode 4 5 Using the Keys In PA...

Page 10: ...Object Parent Class Class Device Revision Device Revision Compatibility Profile Profile Revision No of Parameters Current State Alarm Sum Device Identification Manufacturer Device Id Device Serial Num Software Revision Hardware Revision Electr Serial No Device Features FEATURE_Supported FEATURE_Enabled Device Settings Write Locking Descriptor Message Installation Date Ident Number Selector Device ...

Page 11: ...tatus Mapping Float Blocking Error Diagnosis Mapping Status Mapping Temperature Error Diagnosis Mapping Status Mapping Volume Flow Overrun Diagnosis Mapping Status Mapping Mass Flow Overrun Diagnosis Mapping Status Mapping Autozero Running Diagnosis Mapping Status Mapping Operate Timer Error Diagnosis Mapping Status Mapping Float Blocking Active Diagnosis Mapping Status Mapping Volume Flow Low Lim...

Page 12: ...ass Flow Unit Default Channel Display Selection Volume Flow Volume Flow Volume Flow Status Volume Flow High Limit Volume Flow Low Limit Flow Percent Mass Flow Mass Flow Mass Flow Status Mass Flow High Limit Mass Flow Low Limit Flow Percent Totalizer Totalizer Totalizer Unit Totalizer Reset Fluid Fluid Phase Flow Reference Fluid Name Device Information Operation Parameter Calibration Factor Nominal...

Page 13: ... Tag EEPROM Version WT MAG Type Module Version Device Identification Serial Number S N Model Code Device Version Diagnostic Functions Event Handling Event Overview 1 Event Overview 2 Event Overview 3 Reset Errors Flow Status Handling Float Blocking Float Blocking On Float Blocking Limit Float Blocking Time Float Blocking AZ On Float Blocking Autozero Analog Input Block Block Configuration Static R...

Page 14: ... Point OUT Unit Text OUT Value OUT Status Failsafe Fail Safe Mode Fail Safe Default Value Alarms Warnings Limit Hysteresis Upper Limit Alarm Upper Limit Warning Lower Limit Warning Lower Limit Alarm Upper Unack Alarm Upper Alarm Status Upper Alarm Output Value Upper Unack Warning Upper Warning Status Upper Warning Output Value Lower Unack Warning Lower Warning Status Lower Warning Output Value Low...

Page 15: ...ameters Current State Alarm Sum Device Identification Manufacturer Device Id Device Serial Num Software Revision Hardware Revision Electr Serial No Device Features FEATURE_Supported FEATURE_Enabled Device Settings Write Locking Descriptor Message Installation Date Ident Number Selector Device Diagnosis Diagnosis Mask Diagnosis Device Diagnosis Extension Diagnosis Extension Mask Diagnosis Extension...

Page 16: ...ocking Error Diagnosis Mapping Status Mapping Temperature Error Diagnosis Mapping Status Mapping Volume Flow Overrun Diagnosis Mapping Status Mapping Mass Flow Overrun Diagnosis Mapping Status Mapping Autozero Running Diagnosis Mapping Status Mapping Operate Timer Error Diagnosis Mapping Status Mapping Float Blocking Active Diagnosis Mapping Status Mapping Volume Flow Low Limit Diagnosis Mapping S...

Page 17: ...it Default Channel Display Selection Volume Flow Volume Flow Volume Flow Status Volume Flow High Limit Volume Flow Low Limit Flow Percent Mass Flow Mass Flow Mass Flow Status Mass Flow High Limit Mass Flow Low Limit Flow Percent Totalizer Totalizer Totalizer Unit Totalizer Reset Fluid Fluid Phase Flow Reference Fluid Name TB Device Information Operation Parameter Calibration Factor Nominal Size No...

Page 18: ...t Electr Long Tag EEPROM Version WT MAG Type Module Version Device Identification Serial Number S N Model Code Device Version TB Diagnostic Functions Event Handling Event Overview 1 Event Overview 2 Event Overview 3 Reset Errors Flow Status Handling Float Blocking Float Blocking On Float Blocking Limit Float Blocking Time Float Blocking AZ On Float Blocking Autozero Analog Input Block Block Config...

Page 19: ...atus Failsafe Fail Safe Mode Fail Safe Default Value Alarms Warnings Limit Hysteresis Upper Limit Alarm Upper Limit Warning Lower Limit Warning Lower Limit Alarm Upper Unack Alarm Upper Alarm Status Upper Alarm Output Value Upper Unack Warning Upper Warning Status Upper Warning Output Value Lower Unack Warning Lower Warning Status Lower Warning Output Value Lower Unack Alarm Lower Alarm Status Low...

Page 20: ...nalog Input Block OUT Value OUT Status Diag nostics Device Diagnosis Diagnosis Mask Diagnosis Extended Device Diagnosis Extended Diagnosos Mask Diagnosis Extension TransducerProcess Value MF Mass Flow Mass Flow Status Mass Flow Unit Flow Percent AnalogInputBlock OUT Value OUT Status Diag nostics DeviceDiagnosis Diagnosis Mask Diagnosis ExtendedDevice Diagnosis ExtendedDiagnosis Mask DiagnosisExten...

Page 21: ...through the settings TARGET_MODE Indicates what mode of operation is desired for the Physical Block Two block modes are available Out of Service O S Auto AUTO MODE_BLK The sub parameter Actual indicates the actual mode which is one of the target modes The actual mode may differ from the target mode e g affected by block mode setting of Physical Block Out of Service The copying of the DIAGNOSIS and...

Page 22: ...fines the output parameter of the transducer block to be input to the AI block AI block is assigned to Volumetric flow rate Mass flow rate OUT This parameter contains the value and the status used for cyclic data transfer The content depends on several settings and status handling It is writable in block mode MAN OUT_SCALE Defines the output scale range and unit The output range needs setting from...

Page 23: ...setting is determined by order LOW_FLOW_CUTOFF Sets low cut range for output Setting range is 5 to 15 of VOLUME_FLOW_HI_LIMIT or MASS_FLOW_HI_LIMIT Factory setting 5 VOLUME_FLOW Indicates the current measured value and status of the Process Variable volumetric flow This parameter is an input to the AI Function Block if a volumetric unit is selected on the scale MASS_FLOW_UNIT The units in table 5 ...

Page 24: ...atm 101325 Pa 1574 ft Cubic foot 1043 ft std Standard cubic foot 1053 gal Gallon U S 1048 bbl Barrel U S petroleum 1051 ImpGal Gallon Imperial 1049 m std Standard cubic meter 20 C 1 atm 101325 Pa 1575 L std Standard liter 20 C 1 atm 101325 Pa 1576 Table 5 3 Totalizer units for mass flow Unit Symbol Unit Description Unit Code kg Kilogram SI 1088 t Metric ton 1092 lb Pound Avoirdupois 1094 LTon Long...

Page 25: ... U S per hour 1364 gal min gal min Gallon U S per minute 1363 gal s gal s Gallon U S per second 1362 ft d CFD Cubic foot per day 1359 ft h CFH Cubic foot per hour 1358 ft min CFM Cubic foot per minute 1357 ft s CFS Cubic foot per second 1356 bbl d bbl d Barrel per day 1374 bbl h bbl h Barrel per hour 1373 bbl min bbl min Barrel per minute 1372 bbl s bbl s Barrel per second 1371 L h normal L h norm...

Page 26: ...minute 1323 kg s kg s Kilogram per second 1322 g h g h Gram per hour 1320 g min g min Gram per minute 1319 g s g s Gram per second 1318 t d t d Metric ton per day 1329 t h t h Metric ton per hour 1328 t min t min Metric ton per minute 1327 lb d lb d Pound per day 1333 lb h lb h Pound per hour 1332 lb min lb min Pound per minute 1331 lb s lb s Pound per second 1330 LTon d LTon d Long ton per day 13...

Page 27: ...ed with NE 107 see table 6 2 In addition inside the Transducer Block the parameter DEVICE_STATUS1 to DEVICE_STATUS3 indicates several diagnostic information 6 1 Status description The status Byte attached to the Process Variables and the OUT parameter consists of three parts Quality informs about the status Substatus details the status information Limits Indicates limit violations The status indic...

Page 28: ...nt 0x4B Failure F BAD process related no maintenance 0x28 0x2B Failure F BAD maintenance alarm more diagnosis available 0x24 0x27 Failure F UNCERTAIN simulated value start 0x73 Check C UNCERTAIN simulated value end 0x74 0x77 Check C BAD function check local override 0x3C 0x3F Check C BAD passivated diagnostic alerts inhibited 0x23 Failure F highest Limits status information as defined in table 6 3...

Page 29: ..._ _ _ 0000 0001 0 1 Volume Flow Overrun _ _ _ _ _ _ _ _ 0000 0010 1 2 Mass Flow Overrun _ _ _ _ _ _ _ _ 0000 0100 2 3 Autozero Running n a 0000 1000 3 4 Power Supply Failure n a 0001 0000 4 5 Operate Timer Error n a 0010 0000 5 6 Reserved 15 0100 0000 6 7 Float Blocking Active n a 1000 0000 7 0 Volume Flow Passivated n a n a 0 1 Mass Flow Passivated n a n a 1 2 Volume Flow Low Limit n a n a 2 3 Vo...

Page 30: ...iag_Event_Switch Label Octet Bit High nibble Diag_Status_Link Ok n a n a 0 Check request 2 5 1 Immediate check request 3 1 2 Failure 3 0 3 Invalid process condition 3 3 4 Function check 3 2 5 6 3 Status impacts of Alarm settings Within the Analog Input Block the RAMC provides the possibility to set alarms and warnings for indication of limit violations of the OUT parameter The setting is done with...

Page 31: ...fluid temperatures heated metering tubes or heat radiation by heat tracing make sure that the temperature in the indicator housing does not exceed the permissible maximum ambient temperature of the transmitter see below chapter 7 1 1 7 1 Intrinsically Safe ATEX and IECEx certified electronic transmitter KS1 ES1 7 1 1 Technical data The electronic transmitter is an intrinsically safe device This de...

Page 32: ...s IIB Fieldbus IIC FISCO Ui 17 5 V According IEC 60079 11 Annex G Ii 380 mA Pi 0 95 W Ci negligible Li negligible Table 7 3 Variant 4 Type Fieldbus IIB Fieldbus IIC FISCO Ui 17 5 V 24 V According IEC 60079 11 Annex G Ii 380 mA 250 mA Pi 2 53 W 2 53 W Ci negligible negligible Li negligible negligible 7 1 2 Marking Name plates on electronic transmitter Rota Yokogawa Rheinstrasse 8 D 79664 Wehr WT MA...

Page 33: ...ibus PA connector NOTE If the fieldbus device is operated as variant 1 2 or 3 the supply voltage must be greater than 9 5 V below an ambient temperature of 50 C and greater than 10 V above 50 C Grounding connection Safe area Hazardous area DP PA Coupler Terminator RAMC PROFIBUS PA PROFIBUS DP Host FB FB Other devices T Box Ground Bonding System Optional ground needed if Ground Bonding System not u...

Page 34: ...facturer specification Optional capacitance Optional ground needed if Ground Bonding System not used Safe area Hazardous area Figure 7 3 Possibility 2 Shield grounded in hazardous area DP PA Coupler Terminator RAMC PROFIBUS PA PROFIBUS DP Host FB FB Other devices T Box Optional Ground Bonding System T Box Acc to manufacturer specification Optional capacitance Optional ground needed if Ground Bondi...

Page 35: ...ndix 1 Dev_Rev Parameter in FW see Appendix 1 SOFTWARE REVISION Parameter in FW see Appendix 1 Figure 8 1 Profibus PA example label The information enables a compatibility judgement for Device driver s revision DEVICE_REVISION If the DEVICE_REVISION fulfils Dev_Rev_Comp DEVICE_REVISION Dev_Rev the drivers are compatible with the device E g an installed device driver EDD or DTM inside the host syst...

Page 36: ...l Block Kind of block Parent_Class Parent Class Unsigned8 R 0x01 Transmitter Superior device classification Class Class Unsigned8 R 0x06 Variable Area Flow Meter Device classification Dev_Rev Device Revision Unsigned16 R 1 Assigned device driver versions e g EDD Dev_Rev_Comp Device Revision Compatibility Unsigned16 R 1 Lowest device revision supported by the device DD_Revision Unsigned16 R 1 For f...

Page 37: ...hows diagnostic device information simultaneous messages possible 30 DIAGNOSIS_ EXTENSION Diagnosis Extension Octet String R 0x00 0x00 0x00 0x00 0x00 0x00 Shows additional diagnostic device information 31 DIAGNOSIS_ MASK Diagnosis Mask Octet String R Condensed 0x00 0xB8 0x0F 0x80 Classic 0x1B 0xB8 0x00 0x80 Definition of supported DIAGNOSIS bits 32 DIAGNOSIS_ MASK_ EXTENSION Extended Diagnosis Mas...

Page 38: ...dentification of field device electronic device Unsigned16 R 0x3741 Yokogawa RAMC For future use not available devrev Unsigned8 R E g 10 For future use not available sw_rev Unsigned8 R E g 30 For future use not available hw_rev Unsigned8 R E g 1 For future use not available dev_id Electr Serial No Unsigned32 R E g 7999999 Indicates electronic serial number 230 VIEW_1 R n a Indicates a Profile defi...

Page 39: ...changes 18 TAG_DESC TAG OctetString R W Block specific TAG for customer use 19 STRATEGY Strategy Unsigned16 R W 0 User specified value e g for configuration or diagnostics as a sorting key 20 ALERT_KEY Alert Key Unsigned8 R W 0 User specified value for event allocation e g identification of the plant unit 21 TARGET_MODE Target Mode Unsigned8 R W 0x08 AUTO permitted bit only Indicates and sets the ...

Page 40: ... W 1 In case of BAD status the OUT is adju sted based on the following settings 0 Value FSAFE_VALUE Status UNCERTAIN Substitute Value 1 Value last stored valid value Status UNCERTAIN last usable value 2 Value actual Status no adjustment 34 FSAFE_VALUE Fail Safe Default Value Float R W 0 Default value for the OUT parameter in case of BAD status 35 ALARM_HYS Limit Hysteresis Float R W 0 5 Absolute v...

Page 41: ...future use not available Alarm_State Lower Alarm Status Unsigned8 R 0 No Alarm Indicates the alarm status Time Stamp Time Value R 0 For future use not available Subcode Unsigned16 R 0 For future use not available Value Lower Alarm Output Value Float R 0 Indicates the value which caused the alarm 50 SIMULATE DS 50 R Simulation of Transducer Block input into the Analog Input Function Block Simulate_...

Page 42: ...ements each time a static parameter S changes 18 TAG_DESC TAG OctetString R W Block specific TAG for customer use 19 STRATEGY Strategy Unsigned16 R W 0 User specified value e g for configuration or diagnostics as a sorting key 20 ALERT_KEY Alert Key Unsigned8 R W 0 User specified value for event allocation e g identification of the plant unit 21 TARGET_MODE Target Mode Unsigned8 R W 0x08 AUTO perm...

Page 43: ... Pressure Float R Det by ordered scale Indicates fluid s pressure configuration value 72 OPER_PRESSURE _UNIT Unsigned16 R Det by ordered scale Configurated unit of fluid s pressure 73 OPER_PRESSURE _REF Ref Pressure Float R Det by ordered scale Indicates fluid s pressure reference configuration value 74 OPER_PRESSURE _REF_UNIT Unsigned16 R Det by ordered scale Configurated unit of fluid s pressure...

Page 44: ..._DENSITY Density Float R Det by ordered scale Indicates fluid s density value 105 OPER_DENSITY _UNIT Unsigned16 R Det by ordered scale Configurated unit of fluid s density 106 FLOAT_BLOCKING Record R Indicates and controls the float blocking function FLOAT_BLOCK_ ON Float Blocking On Unsigned8 R 0 Off Enables and disables functionality FLOAT_BLOCK_ LIMIT Float Blocking Limit Unsigned8 R 0 5 Sets l...

Page 45: ...wa IM 01R01B02 01E E 5th edition October 01 2020 00 Abs Index Parameter Sub Parameter Label Data Type Structure Read Write Initial value Functional Description 234 VIEW_5 R n a Indicates a manufacturer specific parameter preselection 235 VIEW_6 R n a Indicates a manufacturer specific parameter preselection ...

Page 46: ...in the AI Function Block The calibrated range 0 and 100 is the factory default setting Output scale setup OUT_SCALE Sets the scale of output corresponding to the 0 and 100 points in operation within the AI function Block It is possible to set a unit and scale range that differs from the measurement range Sets the range unit input value of the 0 point lower limit of output scale input value of the ...

Page 47: ...within 60 seconds after setting of parameters changed parameters are not saved and may return to their original values When the consecutive parameter setting to the multiple parameters is not executed via the acyclic data exchange the time interval between each parameter setting must not be within 2 seconds Changed parameters may not be written to the device Refer to the List of parameters for eac...

Page 48: ...parameter Units_Index on parameter OUT_SCALE 2 Set 120 to sub parameter EU_at_100 on parameter OUT_SCALE 3 Set 0 to EU at 0 on OUT_SCALE 4 Set 2 to sub parameter Decimal_Point on parameter OUT_SCALE Each unit is expressed using a 4 digit numeric code Refer to chapter 5 4 for comparison 2 Simulation The AI Function Block could be simulated by using the simulation functionality If simulation is enab...

Page 49: ... IM 01R01B02 01E E 5th edition October 01 2020 00 Subject to change without notice Manufacturer Rota Yokogawa GmbH Co KG Rheinstr 8 D 79664 Wehr Germany For the actual manufacturing location of your device refer to the model code and or serial number ...

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