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KROHNE IFC 050 Converter Modbus EN User Manual

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CONTENTS

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www.krohne.com

09/2012 - 4002202601 - AD Modbus IFC 050 R01 en

IFC 050

1 Important information

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2 Technical data

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2.1 General technical data ..................................................................................................... 4
2.2 Technical data of the Modbus interface (acc. to EIA standards) ..................................... 4

3 Connection in bus systems

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4 Local configuration

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5 Electrical connection

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6 Modbus protocol

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6.1 General information concerning the protocol ................................................................. 8
6.2 RTU frame format............................................................................................................. 8
6.3 Addressing........................................................................................................................ 9
6.4 Overview of supported functions...................................................................................... 9
6.5 Device identification on the Modbus interface............................................................... 10
6.6 Coil registers .................................................................................................................. 10

6.6.1 Converter controls ................................................................................................................ 10
6.6.2 Counter controls ................................................................................................................... 11
6.6.3 Start calibration functions .................................................................................................... 11

6.7 Input registers ................................................................................................................ 12
6.8 Holding registers............................................................................................................ 13

6.8.1 Counter parameters ............................................................................................................. 13
6.8.2 Process input filter and self test parameters ...................................................................... 14
6.8.3 Modbus parameters.............................................................................................................. 15

6.9 Diagnostics ..................................................................................................................... 15
6.10 Calibration procedures................................................................................................. 16

6.10.1 Zero Flow Calibration.......................................................................................................... 16
6.10.2 Conductivity Calibration ...................................................................................................... 17

7 Notes

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