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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