Danfoss VLT AutomationDrive FC 300 Series - Page 7

10.6.1 Content of a Character (byte) 182
10.6.2 Telegram Structure 183
10.6.3 Telegram Length (LGE) 183
10.6.4 Frequency Converter Address (ADR) 183
10.6.5 Data Control Byte (BCC) 183
10.6.6 The Data Field 184
10.6.7 The PKE Field 184
10.6.8 Parameter Number (PNU) 185
10.6.9 Index (IND) 185
10.6.10 Parameter Value (PWE) 185
10.6.11 Supported Data Types 186
10.6.12 Conversion 186
10.6.13 Process Words (PCD) 186
10.7 Examples
186
10.7.1 Writing a Parameter Value 186
10.7.2 Reading a Parameter Value 187
10.8 Modbus RTU Overview
187
10.8.1 Assumptions 187
10.8.2 What the User Should Already Know 187
10.8.3 Modbus RTU Overview 187
10.8.4 Frequency Converter with Modbus RTU 188
10.9 Network Configuration
188
10.9.1 Frequency Converter with Modbus RTU 188
10.10 Modbus RTU Message Framing Structure
188
10.10.1 Frequency Converter with Modbus RTU 188
10.10.2 Modbus RTU Message Structure 188
10.10.3 Start/Stop Field 189
10.10.4 Address Field 189
10.10.5 Function Field 189
10.10.6 Data Field 189
10.10.7 CRC Check Field 189
10.10.8 Coil Register Addressing 189
10.10.9 How to Control the Frequency Converter 191
10.10.10 Function Codes Supported by Modbus RTU 191
10.10.11 Modbus Exception Codes 191
10.11 How to Access Parameters
191
10.11.1 Parameter Handling 191
10.11.2 Storage of Data 191
10.11.3 IND 192
10.11.4 Text Blocks 192
Contents
VLT
®
AutomationDrive FC 300 Design Guide, 0.25-75 kW
MG33BE02 - VLT
®
is a registered Danfoss trademark 5
RSPSupply - 1-888-532-2706 - www.RSPSupply.com
http://www.RSPSupply.com/p-21462-Danfoss-131B8966-VLT-Automation-VT-Drive-VFD-FC301-230V-5-HP.aspx