Table of contents
1. COMMUNICATION SETTING PROCEDURES
........................................... 1
1.1: Communication setting
............................................................ 1
1.2: Connection
...................................................................... 5
1.3: Multiple connection procedure
...................................................... 6
2. COMMUNICATION INTERFACE
....................................................... 7
2.1: Data transmission system
.......................................................... 7
2.2: Frame configuration
............................................................... 7
2.3: Message configuration
............................................................ 7
2.4: Slave address
.................................................................... 7
2.5: Function code
.................................................................... 8
2.6: Data
............................................................................ 8
2.7: Reference number
................................................................ 8
2.8: Error check
...................................................................... 9
2.9: Function code details
............................................................. 10
2.10: Error processing
................................................................ 12
2.11: Transmission error codes
........................................................ 12
3. REMOTE OPERATION VIA COMMUNICATION
......................................... 13
3.1: Start remote mode
............................................................... 13
3.2: End remote mode
................................................................ 13
3.3: Remote operation start/stop
....................................................... 13
3.4: Operation mode change in remote mode
............................................ 13
3.5: Key operation in remote mode
..................................................... 14
3.6: Recovery from power outage in remote mode
........................................ 14
4. COMMUNICATION REFERENCE TABLE
.............................................. 15
4.1: Function code 03/06
............................................................. 15
4.2: Function code 04
................................................................ 22
5. COMMUNICATION SAMPLE MESSAGE
.............................................. 28
5.1: ASCII
.......................................................................... 28
5.2: RTU
........................................................................... 29
6. PRECAUTIONS
.................................................................... 30
