Danfoss VLT AutomationDrive FC 300 Design Manual page 9

Contents
10.8 Examples
10.9 Modbus RTU Overview
10.10 Network Configuration
10.11 Modbus RTU Message Framing Structure
10.12 How to Access Parameters
MG34S222
Design Guide
10.7.2 Message Structure
10.7.3 Message Length (LGE)
10.7.4 Adjustable Frequency Drive Address (ADR)
10.7.5 Data Control Byte (BCC)
10.7.6 The Data Field
10.7.7 The PKE Field
10.7.8 Parameter Number (PNU)
10.7.9 Index (IND)
10.7.10 Parameter Value (PWE)
10.7.11 Data Types Supported
10.7.12 Conversion
10.7.13 Process Words (PCD)
10.8.1 Writing a Parameter Value
10.8.2 Reading a Parameter Value
10.9.1 Assumptions
10.9.2 Prerequisite Knowledge
10.9.3 Modbus RTU Overview
10.9.4 Adjustable Frequency Drive with Modbus RTU
10.10.1 Adjustable Frequency Drive with Modbus RTU
10.11.1 Adjustable Frequency Drive with Modbus RTU
10.11.2 Modbus RTU Message Structure
10.11.3 Start/Stop Field
10.11.4 Address Field
10.11.5 Function Field
10.11.6 Data Field
10.11.7 CRC Check Field
10.11.8 Coil Register Addressing
10.11.9 How to Control the Adjustable Frequency Drive
10.11.10 Function Codes Supported by Modbus RTU
10.11.11 Modbus Exception Codes
10.12.1 Parameter Handling
10.12.2 Storage of Data
10.12.3 IND
Danfoss A/S © Rev. 2014-02-10 All rights reserved.
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