Endress+Hauser Liquiline CM44R Series Manuals

Manuals and User Guides for Endress+Hauser Liquiline CM44R Series. We have 1 Endress+Hauser Liquiline CM44R Series manual available for free PDF download: Supplementary Documentation

Endress+Hauser Liquiline CM44R Series Supplementary Documentation

Endress+Hauser Liquiline CM44R Series Supplementary Documentation (75 pages)

Data transmission via Modbus

Brand: Endress+Hauser | Category: Measuring Instruments | Size: 3.08 MB

Table of Contents

Table of Contents
2
1 Note

4
- About this Manual
  4
- Abbreviations
  4
2 Installation and Wiring

5
- A-, B-Wire
  5
- Termination
  5
3 Modbus Protocol

6
- Specification
  6
- Basic Principle
  6
  - General
    6
  - Modbus Exception Codes
    7
- Transmission Modes
  7
  - Ascii
    7
  - Tcp
    8
  - Rtu
    8
- Supported Function Codes
  9
4 Commissioning

13
- Modbus RS485
  13
- Ethernet
  14
  - Verifying the Connection
    15
- Modbus TCP
  15
- Byte Order
  16
  - Integer (16 Bit)
    16
  - Float / Integer (32 Bit)
    16
  - String
    16
- Device Variables
  17
5 Diagnostics

22
- LED Displays
  22
- Status of Device Variables
  22
- Status Signal
  22
- Diagnostic Messages
  23
  - Device Related Diagnostics
    23
  - Sensor Related Diagnostics
    24
    
    Current Diagnostic Message
    24
    
    Communication Related Diagnostics
    25
  - Bus Termination
    25
  - Protocol Counters
    25
6 Applications

26
- Ca80Xx: How to Start Measurement, Calibration and Cleaning
  26
  - Activate "Fieldbus"-Mode Using the Device Menu
    28
  - Activate "Fieldbus"-Mode Using Modbus
    28
  - How-To Execute Actions
    29
    
    How-To Execute a Measurement
    29
    
    How-To Run a Calibration
    30
    
    How-To Start a Cleaning
    30
    
    How-To Abort an Action
    31
    
    Error Evaluation
    31
  - Modbus Registers
    32
    
    Analyzer Manual Actions
    32
    
    Analyzer Manual Actions State
    33
7 Appendix

35
- Data Types
  35
  - Float (IEE-754)
    35
  - Integer
    35
  - String
    35
  - Datetime
    35
  - Other Data Types
    35
- Status Codes
  36
- Unit Codes
  36
- Units of Device Variables
  37
8 Modbus Tables

40

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