Krohne MFC 010 C Converter User Manual

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8 MFC010 Interface Manual 3.3 Connection to the MFC010 1. Unscrew the fixing screw on the junction box cover. 2. Release the two fixing scre

98 MFC010 Interface Manual LOS4301-2: 85V - 265V AC Input When using the LOS4301-2 power supply, it is recommended to use three 470pF/400VAC (Vis

MFC010 Interface Manual 99 SCD30 S12 - DN: 20 - 72V DC Input When using the SCD30 S12-DN power supply, i t i s recommended t o us e t hree 3. 3n

100 MFC010 Interface Manual Appendix F: MFC010 Toolbox MFC010 Toolbox i s a c onfiguration, di agnostics and ev aluation t ool f or t he K rohne

MFC010 Interface Manual 101 Notes Page:

AustraliaKROHNE Australia Pty Ltd Quantum Business Park10/287 Victoria RdRydalmere NSW 2116TEL.: +61 2 8846 1700FAX: +61 2 8846 1755e-mail: krohne@kro

MFC010 Interface Manual 9

10 MFC010 Interface Manual 3.4 Connection to the Modbus Bus The MFC010 is designed to be connected as a Slave device onto the 2-wire bus implem

MFC010 Interface Manual 11 Because the connection to the bus requires exposing the signal wires, the c onnection to t he m ain bus should be m

12 MFC010 Interface Manual NB For H azardous A rea appl ications t he us er s hould r efer t o s ection 4.3, on page 17, f or c onnection de

MFC010 Interface Manual 13 4. Installation in Hazardous Area Applications Before installation the user MUST ENSURE that the equipment to be ins

14 MFC010 Interface Manual The output safety par ameters of t he bar rier dev ices m ust not ex ceed t he V oltage, P ower and C urrent limits s

MFC010 Interface Manual 15 4.1 Power Supply Barrier Devices The following Zener Barrier devices are those that are recommended for use on the V

16 MFC010 Interface Manual 4.2 Modbus Barrier Devices The following Zener Barrier devices are those that are recommended for use on the A &

MFC010 Interface Manual 17 4.3 Connection To The Modbus Bus When installed in hazardous area application the MFC010 i nterface i s not di rect

18 MFC010 Interface Manual In a multidrop installation, see figure below, the Zener Barrier devices must be connected to the bus using a s uitab

MFC010 Interface Manual 19 5. Modbus Protocol Interface The interface to the MFC010 is implemented in the Modbus RTU communications protocol, a

20 MFC010 Interface Manual 5.2 Modbus Telegram Format The messages between the Modbus master and slave devices are transmitted as groups of cha

MFC010 Interface Manual 21 Single 16 Bit Register Variables, Data Transmission Order Byte 1, MS Byte Byte 0, LS Byte Long Integer

22 MFC010 Interface Manual 5.6 Error Messages in Modbus When t he M FC010 det ects an error i n t he r equest r eceived i n a pr operly f ormat

MFC010 Interface Manual 23 6. Modbus Functions Supported by the MFC010 6.1 01 (0116): Read Coil Status This function per mits t he us er t o

24 MFC010 Interface Manual 6.2 02 (0216): Read Discrete Input This function permits the user to read the state of a number of consecutive Discr

MFC010 Interface Manual 25 6.3 03 (0316): Read Holding Registers This f unction per mits t he us er t o r ead t he v alue of a number of cons

26 MFC010 Interface Manual 6.4 04 (0416): Read Input Registers This function permits the user to read the value of a number of consecutive Inpu

MFC010 Interface Manual 27 6.5 05 (0516): Force Single Coil This function permits the user to set the state of a single Discrete Output “Coil”

MFC010 Interface Manual 1 Contents 1. Introduction 5 2. Mechanical Installation 5 3. Electrical Installation 6 3.1 Electrical Input

28 MFC010 Interface Manual 6.6 06 (0616): Preset Single Register This function permits the user to set the value of a single Holding register.

MFC010 Interface Manual 29 6.7 07 (0716): Read Exception Status When the Master device requests this command function, the MFC010 will respond

30 MFC010 Interface Manual 6.8 08 (0816): Diagnostics This command function permits the user to per form one of s everal di agnostic oper atio

MFC010 Interface Manual 31 6.10 16 (1016): Preset Multiple Registers This function permits the user to set the v alue of a num ber of c onsec

32 MFC010 Interface Manual 6.11 17 (1116): Report Slave ID The Report Slave ID command is useful to retrieve all of t he i dentification i nf

MFC010 Interface Manual 33 7. MFC010 Modbus Data Model 7.1 MFC010 Register Structure The register s tructure f or t he M FC010 begi ns w ith

34 MFC010 Interface Manual Register Description Discrete Output (Binary) States (and Commands) 0XXXX Registers, Accessed Using Commands 01

MFC010 Interface Manual 35 Register Description 3005 Temperature 3007 Volume Flow 3009 Concentration 1 Flow 3011 Concentration

36 MFC010 Interface Manual Register Description 1005 Modbus Communications Baud rate 1006 Modbus Communications Address 1007 Flow D

MFC010 Interface Manual 37 Register Description 3033 CF17 CT  3035 CF18 CT  3037 CF19 CT  3039 CF20 CT  3041 Meter Correction CT 304

2 MFC010 Interface Manual 9. Error and Warning Messages 81 9.1 System Errors 81 9.2 Process Warnings 85 10. Trouble Shooting 88 10

38 MFC010 Interface Manual Register Description Long Integer Values (Accessed in pairs of registers) 7001 MFC010 Serial Number CT 

MFC010 Interface Manual 39 7.2 Discrete Status Output “Coil” Registers The discrete Status Output, or “Coil”, registers are used by the MFC010

40 MFC010 Interface Manual Register No. Description 1010 Discard Previous Write Operations – Discard all of the configuration changes made since

MFC010 Interface Manual 41 7.3 Discrete Input (Binary) Status Registers The Discrete I nput S tatus r egisters ar e us ed t o i ndicate t o t h

42 MFC010 Interface Manual Register No. Description 1007 Density Calibration Status – This state indicates when the system has detected an error

MFC010 Interface Manual 43 7.4 Input Registers The input registers contain the measurement values and di agnostic data that the MFC010 produces

44 MFC010 Interface Manual Register No. Description 3001 / 3002 Mass Flow - The measured mass flow rate after filtering. Proportional to the Pha

MFC010 Interface Manual 45 Register No. Description 3015 / 3016 Concentration 2 - The proportion of the selected product in the solution. The va

46 MFC010 Interface Manual Register No. Description 3027 / 3028 Additional Total - The additional totaliser can be selected to be a sub-totaliser

MFC010 Interface Manual 47 Register No. Description 3045 / 3046 Density Calibration Coefficient DCF8 - The Temperature Correction value calculate

MFC010 Interface Manual 3 Product Liability and Warranty The MFC010 mass flow sensor electronics are an integral part of the OPTIMASS a nd O P

48 MFC010 Interface Manual Register No. Description 5013 - 5016 Concentration 2 Total - The accumulation of mass of the concentration product ove

MFC010 Interface Manual 49 7.5 Holding Registers The Holding R egisters c ontain the c onfiguration information for the MFC010. This configura

50 MFC010 Interface Manual Register No. Description 1005 Modbus Baud Rate - The value held in this register determines the transmission rate of

MFC010 Interface Manual 51 Register No. Description 1010 CT Process Control Condition - The value stored in this register determines the source m

52 MFC010 Interface Manual Register No. Description 1013  CT Sensor Size - The interpretation of this register depends upon the setting of the S

MFC010 Interface Manual 53 Register No. Description 1015  Tube Amplitude - The sensor input amplitude to which the measuring tube oscillation co

54 MFC010 Interface Manual Register No. Description 1020 Mass Flow Units - The units setting in this register determine the scaling factor of th

MFC010 Interface Manual 55 Register No. Description 1021 Density Units - The units setting in this register determine the scaling factor of the

56 MFC010 Interface Manual Register No. Description 1022 CT Mass Total Units - The units setting in this register determine the scaling factor o

MFC010 Interface Manual 57 Register No. Description 1024 Volume Flow Units - The units setting in this register determine the scaling factor of

4 MFC010 Interface Manual

58 MFC010 Interface Manual Register No. Description 1027 Additional Totaliser Source - The additional totaliser acts as a bat ch c ounter r ec

MFC010 Interface Manual 59 Register No. Description 1031  CT Calibration Coefficient CF25 - One of the coefficients used to accurately calculate

60 MFC010 Interface Manual Register No. Description 3011 / 3012  CT Calibration Coefficient CF6 - One of the coefficients used to accurately ca

MFC010 Interface Manual 61 Register No. Description 3025 / 3026  CT Calibration Coefficient CF13 - One of the coefficients used to accurately c

62 MFC010 Interface Manual Register No. Description 3039 / 3040  CT Calibration Coefficient CF20 - One of the coefficients used to accurately c

MFC010 Interface Manual 63 Register No. Description 3051 / 3052 Process Control Maximum Limit - This v alue det ermines t he l evel abov e w hi

64 MFC010 Interface Manual Register No. Description 3061 / 3062 Concentration Coefficient #2 - One of t he c oefficients us ed t o ex trapolate

MFC010 Interface Manual 65 Register No. Description 3073 / 3074 Concentration Coefficient #9 - One of t he c oefficients us ed t o ex trapolate

66 MFC010 Interface Manual Register No. Description 3085 / 3086 User Defined Volume Total Units Scaling - The scaling factor used for the user d

MFC010 Interface Manual 67 Register No. Description 3097 / 3098  Sensor Maximum Temperature Specification - The m aximum t emperature r ating f

MFC010 Interface Manual 5 1. Introduction The MFC010 is a s tand al one s ignal c onverter des igned t o di rectly i nterface t he O PTIMASS an

68 MFC010 Interface Manual Register No. Description 3109 / 3110  CT Calibration Coefficient #21 - One of the coefficients used to accurately cal

MFC010 Interface Manual 69 Register No. Description 7001 / 7002 CT  MFC010 Serial Number - The uni que s erial num ber of t he M FC010. This

70 MFC010 Interface Manual

MFC010 Interface Manual 71 8. MFC010 Operations 8.1 Mass Flow Zero Calibration All KROHNE mass flow meters are supplied with an ac curate cal

72 MFC010 Interface Manual The “Zero Calibration Status Flag”, held in Binary Input register no. 1008, indicates when the system has detected a

MFC010 Interface Manual 73 The procedure for performing a single point density calibration is as follows.

74 MFC010 Interface Manual The procedure for performing a two point density calibration is as follows.

MFC010 Interface Manual 75 8.3 Fixed and Referred Density Operation In addition to t he di rectly m easured D

76 MFC010 Interface Manual 8.4 Concentration Measurement Using the density and temperature measurement data the MFC010 is able to calculate the

MFC010 Interface Manual 77 8.6 Saving and Restoring Configuration settings The contents of t he holding registers (see section 7.5 on page 4

6 MFC010 Interface Manual 3. Electrical Installation The MFC010 is provided with four electrical terminal connections. V+ The power supply in

78 MFC010 Interface Manual 8.8 Using the Internal Process Control Mechanism The internal process control system permits t he us er t o l imit t

MFC010 Interface Manual 79 8.10 Pressure Suppression The Pressure Suppression feature has been included to permit the user to eliminate any inf

80 MFC010 Interface Manual The Pressure Suppression function eliminates the effect of this over-shoot by increasing the “Low flow Threshold” for

MFC010 Interface Manual 81 9. Error and Warning Messages The error and warning flags generated by the MFC010 can be retrieved from Input regist

82 MFC010 Interface Manual Bit Error Flag Designation 4 CT Name : PCB Temperature Cause : The temperature detected on the main circuit board

MFC010 Interface Manual 83 Bit Error Flag Designation 9 CT Name : MT Strain Gauge Open Circuit Cause : The measurement system has detected an

84 MFC010 Interface Manual Bit Error Flag Designation 17 CT Name : Drive System Open Circuit Cause : The tube oscillation control system has

MFC010 Interface Manual 85 9.2 Process Warnings The Process Warning flags, held as a long integer value in input registers 7003/7004, are an in

86 MFC010 Interface Manual Bit Warning Flag Designation 8 Name : Zero Flow Calibration Above Limits Cause : The Mass flow rate during the pre

MFC010 Interface Manual 87 Bit Warning Flag Designation 26 Name : Reserved for Future Use 27 Name : Reserved for Future Use 28 Name : Rese

MFC010 Interface Manual 7 3.2 Recommended Cable Specification The c able us ed t o c onnect t he M FC010 t o t he M odbus m aster c ontrol s ys

88 MFC010 Interface Manual 10. Trouble Shooting The following are some examples of common problems caused by incorrect installation or operatio

MFC010 Interface Manual 89 10.3 “The MFC010 is responding with an Illegal Modbus Function Message” There can be two reasons why this error resp

90 MFC010 Interface Manual Appendix A : Modbus CRC Checksum Calculation The Procedure for calculating the CRC checksum for a Modbus Telegram is

MFC010 Interface Manual 91 unsigned short Calculate_Checksum (unsigned char uc_Telegram_Length, unsigned short *Buffer_Pointer ) { // Declare L

92 MFC010 Interface Manual Appendix B : Hexadecimal and Binary Notation The Binary ( Base 2 ) and H exadecimal ( Base 16 ) mathematical notat

MFC010 Interface Manual 93 Appendix C : Decoding Floating Point Numbers Floating point numbers in computer s ystems ar e us ed t o r epresent v

94 MFC010 Interface Manual Therefore = -10 x 2(144-127) x [1 + { 4806344 / 223 }] = 1 x 217 x 1.5729609 = 206171.131 NB Accuracy up to the sev

MFC010 Interface Manual 95 Appendix D : Sensor Sizes and Associated Default Register Settings The available ranges and def ault settings of a num

96 MFC010 Interface Manual 5000 15 Stainless Steel 8500 15.00 mm 80% +93 °C - 40 °C 25 Stainless Steel 14200 25.00 mm 80% +93 °C - 40 °C

MFC010 Interface Manual 97 Appendix E : Installation of Power Supplies in MFC010 Applications Application Note Connection of Power supplies i