Connection and addressing notes
- Protocol
- Modbus RTU / Modbus ASCII
- Interface
- RS-485
- Data bits
- 8
- Stop bits
- 1 or 2
- Parity
- none, even or odd
- Baud rate
- 300 to 115200 bit/s, selected by DIP switches
- Slave address
- set by DIP switches, address 0 is forbidden
- Register addressing
- zero based holding registers, numbering starts at 0
- Modbus port 1
- RS-485 Modbus Slave port, up to 32 devices
- Modbus port 2
- serves up to 4 meters over RS-485, CAN or RS-232
Registers in the map: 24. function 3 (holding registers). byte order big-endian. data types: datetime, dword, word.
| MODBUS offset | Description | Units | Data type | Scale |
|---|---|---|---|---|
| 4352 | Device 1. Connection state | word | ||
| 4353 | Device 1. Address | word | ||
| 4357 | Device 1. Timestamp | datetime | formula | |
| 4361 | Device 1. Voltage A | word | ||
| 4362 | Device 1. Voltage B | word | ||
| 4363 | Device 1. Voltage C | word | ||
| 4364 | Device 1. Active power A | dword | ||
| 4366 | Device 1. Active power B | dword | ||
| 4368 | Device 1. Active power C | dword | ||
| 4370 | Device 1. Temperature | word | ||
| 4371 | Device 1. Total active energy | dword | ||
| 4373 | Device 1. Total reactive energy | dword | ||
| 4480 | Device 2. Connection state | word | ||
| 4481 | Device 2. Address | word | ||
| 4485 | Device 2. Timestamp | datetime | formula | |
| 4489 | Device 2. Voltage A | word | ||
| 4490 | Device 2. Voltage B | word | ||
| 4491 | Device 2. Voltage C | word | ||
| 4492 | Device 2. Active power A | dword | ||
| 4494 | Device 2. Active power B | dword | ||
| 4496 | Device 2. Active power C | dword | ||
| 4498 | Device 2. Temperature | word | ||
| 4499 | Device 2. Total active energy | dword | ||
| 4500 | Device 2. Total reactive energy | dword |