Elsner
The Elsner P03/3-MODBUS is a solid-state weather station with a standard Modbus RTU slave interface. It measures temperature, wind speed and brightness (eastern, southern and western sun) and recognizes precipitation.
Contents
Communication
The P03/3 has a Modbus interface. The default connection parameters are:
- Modbus address: 1
- RS-485 parameters:
| Baud rate | 19200 |
| Data bits | 8 |
| Stop bit | 1 |
| Parity | even |
| Flow control | none |
Refer to the P03/3 data sheet for installation, wiring and power supply requirements.
HSYCO Configuration
Add an ELSNERP03M I/O Server in the I/O Servers section of the Settings and set its parameters:
Communication
- Comm ID: select a MODBUSTCP I/O server if using a Modbus gateway, or the serial port id when using a direct RS-485 port with HSYCO acting as Modbus RTU master.
High Availability
- Shutdown when inactive: defaults to true.
Options
| ID | Default | Values | Description |
|---|---|---|---|
| gui | true | true | enable support for the UI object, UISET actions and USER commands |
| false | disable UI support | ||
| startupevents | false | true | generate IO events also during the driver’s start-up phase |
| false | start generating events only after HSYCO is aligned with the current status of the system | ||
| pollinterval | 30 | > 1 | the data acquisition interval, in seconds |
| address | 1 | > 1 | the Modbus address of the P03/3 device |
Datapoints
| ID | Value | R/W | Description |
|---|---|---|---|
| connection | online | R | connection established to the P03/3 |
| offline | R | HSYCO can’t connect to the P03/3 | |
| temp | signed integer -40C .. +80C |
R | signed integer representing the measured temperature, in 10th of Celsius degrees (e.g. 210 corresponds to 21.0C) |
| light | positive integer 0 .. 99 |
R | sun light in kilolux, equal to the maximum value detected by the three side sensors |
| light.east | positive integer 0 .. 99 |
R | sun light in kilolux, detected from East-side sensor |
| light.south | positive integer 0 .. 99 |
R | sun light in kilolux, detected from South-side sensor |
| light.west | positive integer 0 .. 99 |
R | sun light in kilolux, detected from West-side sensor |
| light.lux | positive integer 0 .. 999 |
R | ambient light in lux (corresponds to the P03-Modbus address 8) |
| wind | positive integer | R | wind in 10th of m/s (e.g. 32 corresponds to 3.2 m/s) |
| rain | 0 | R | no rain |
| 1 | R | rain |
User Interface
UISET Actions
| ID | Attribute | Set to | |
|---|---|---|---|
| temp | value | the current temperature in Celsius degrees with one decimal digit, followed by " °C" | |
| light | value | the current sun light in klux, followed by "klux" | |
| light.lux | value | the current ambient light in lux, followed by "lux" | |
| wind | value | the current wind in m/s, followed by " m/s" | |
Release Notes
3.6.0
- fixed a bug that could cause erroneous readings of negative value temperatures
3.5.0
- new "light.lux" data point
2.10
- full integration in HSYCO 2.10.0
Elsner is a registered trademark of Elsner Elektronik GmbH.
