Table Of Contents - Mitsubishi Electric MR-JE-_A Instruction Manual

1. FUNCTIONS AND CONFIGURATION
1.1 Summary ........................................................................................................................................... 1- 1
1.2 Function List ...................................................................................................................................... 1- 2
1.3 Communication Specifications .......................................................................................................... 1- 2
1.4 System Configuration ....................................................................................................................... 1- 3
1.4.1 Diagrammatic sketch .................................................................................................................. 1- 3
1.4.2 Cable connection diagram ......................................................................................................... 1- 4
2. PARAMETER
2.1 Detailed list of parameters ................................................................................................................ 2- 2
2.2 Restrictions on using Modbus-RTU communication ........................................................................ 2- 5
3. MODBUS PROTOCOL
3.1 Modbus-RTU Message Format ........................................................................................................ 3- 1
3.2 Broadcast Communication ................................................................................................................ 3- 1
3.3 Modbus-RTU Communication Message Frame ............................................................................... 3- 2
3.4 Function Codes ................................................................................................................................. 3- 3
3.4.1 List of function codes ................................................................................................................. 3- 3
3.4.2 Read Holding Registers (Reading data in holding registers: 03h)............................................. 3- 4
3.4.3 Diagnostics (Function diagnostics: 08h) .................................................................................... 3- 6
3.4.4 Preset Multiple Registers (Writing data in multiple holding registers: 10h) ............................... 3- 8
3.4.5 Processing at occurrence of an error ........................................................................................ 3-10
4. MODBUS REGISTERS
4.1 List of Available Registers ................................................................................................................ 4- 1
4.2 Monitor (Address: 2B01h to 2B7Fh) ................................................................................................. 4- 2
4.2.1 List of registers ........................................................................................................................... 4- 2
4.2.2 Directions for use ....................................................................................................................... 4- 3
4.3 Parameter Setting (Address: 2001h to 27FFh) ................................................................................. 4- 4
4.3.1 List of registers ........................................................................................................................... 4- 4
4.3.2 Directions for use ....................................................................................................................... 4- 4
4.4 Point Table Setting (Address: 2801h to 281Fh) ............................................................................... 4- 5
4.4.1 List of registers ........................................................................................................................... 4- 5
4.4.2 Directions for use ....................................................................................................................... 4- 5
4.5 Writing Command to EEP-ROM (Address: 1010h) .......................................................................... 4- 5
4.5.1 List of registers ........................................................................................................................... 4- 5
4.5.2 Directions for use ....................................................................................................................... 4- 6
4.6 Alarm Information (Address: 1001h) ................................................................................................. 4- 7
4.6.1 List of registers ........................................................................................................................... 4- 7
4.6.2 Directions for use ....................................................................................................................... 4- 7
4.7 Alarm Number (Address: 2A41h) ..................................................................................................... 4- 7
4.7.1 List of registers ........................................................................................................................... 4- 7
4.7.2 Directions for use ....................................................................................................................... 4- 7
4.8 Alarm Occurrence Monitor (Address: 2B81h to 2BFFh) ................................................................... 4- 8
4.8.1 List of registers ........................................................................................................................... 4- 8
CONTENTS
1
1- 1 to 1- 4
2- 1 to 2- 6
3- 1 to 3-10
4- 1 to 4-22