Difference between revisions of "WXT520"
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Revision as of 15:36, 6 November 2014
The Vaisala WXT520 is a small and lightweight transmitter that offers six weather parameters in one compact package. WXT520 measures wind speed and direction, precipitation, atmospheric pressure, temperature and relative humidity.
The HSYCO WXT520 driver supports the RS-232 and RS-485 serial interface version, with the ASCII automatic protocol on the WXT520.
Contents
Communication
Connectthe WXT520 to HSYCO through a direct serial connection or a supporter TCP/IP to serial gateway.
The default RS-232 parameters are:
| Baud rate | 19200 |
| Data bits | 8 |
| Stop bit | 1 |
| Parity | none |
| Flow control | none |
WXT520 configuration
The WXT520 must be configured to automatically send all relevant measured data to the serial port using its proprietary ASCII protocol.
Select the ASCII protocol and uncheck the "Polling only" option, so that automatic transmission is enabled. If the "Response with CRC" option is enabled, the WXT520 driver will check the CRC in received messages and discard messages with CRC errors.
The composite message transmission interval should be set to no more than 30 seconds, otherwise the driver could be occasionally restarted due to the intervention of the keep-alive watch-dog.
HSYCO Configuration
Add a WXT520 I/O Server in the I/O Servers section of the Settings and set its parameters:
Communication
- Comm ID: select the comm port connected to the device.
High Availability
- Shutdown when inactive: defaults to true.
Options
| ID | Default | Values | Description |
|---|---|---|---|
| gui | false | true | enable support for the UISET actions |
| false | disable UI support | ||
| altitude | 0 | n >= 0 | the station's installation altitude above mean sea level.
This optional parameter is used to convert the measured local atmospheric pressure to mean sea level pressure (MSLP). The conversion function takes into account the altitude and local temperature. If this paramter is not set or set to 0, the measured pressure value will be returned unmodified. |
Datapoints
| ID | Value | R/W | Description |
|---|---|---|---|
| connection | online | R | connection established |
| offline | R | HSYCO can’t connect to the panel | |
| k<n>.<addr>.name | <name> | R | the name of the addressed thermostat is set to the reported string |
| k<n>.<addr>.temp | <val> | R | the room temperature measured by the addressed thermostat is equal to <val> in °C/10 |
| k<n>.<addr>.setpoint.temp | <val> | R | the set-point temperature measured by the addressed thermostat is equal to <val> in °C/10 |
| W | set the set-point temperature of the addressed thermostat to <val> in °C/10 | ||
| k<n>.<addr>.humidity | <val> | R | the relative humidity measured by the addressed thermostat is equal to <val> |
| season | summer | R | the current season is set to summer |
| W | set the current season to summer | ||
| winter | R | the current season is set to winter | |
| W | set the current season to winter | ||
| k<n>.<addr>.mode | off | R | the addressed thermostat is set to mode “OFF” |
| W | set the addressed thermostat to mode “OFF” | ||
| com | R | the addressed thermostat is set to mode “Comfort” | |
| W | set the addressed thermostat to mode “Comfort” | ||
| stb | R | the addressed thermostat is set to mode “Stand-by” | |
| W | set the addressed thermostat to mode “Stand-by” | ||
| ngt | R | the addressed thermostat is set to mode “Night" | |
| W | set the addressed thermostat to mode “Night” | ||
| mode | off | W | set all the thermostats to mode “OFF” |
| com | W | set all the thermostats to mode “Comfort” | |
| stb | W | set all the thermostats to mode “Stand-by” | |
| ngt | W | set all the thermostats to mode “Night” | |
| k<n>.pump | 0 | R | the pump of the addressed KPM20 module is not active |
| 1 | R | the pump of the addressed KPM20 module is active | |
| k<n>.in.temp | <val> | R | the inlet temperature of the addressed KPM20 module is equal to <val> |
| k<n>.out.temp | <val> | R | the return temperature of the addressed KPM20 module is equal to <val> in °C/10 |
| k<n>.setpoint.temp | <val> | R | the working set-point temperature of the addressed KPM20 module is equal to <val> in °C/10 |
| k<n>.valve | <val> | R | the opening percentage value of the mixing valve calculated by the addressed KPM20 module is equal to val |
| ext.temp | <val> | R | the measured external temperature is equal to <val> in °C/10 |
| t1.winter | <val> | R | the T1 temperature parameter’s value for winter climatic compensation is equal to <val> in °C/10 |
| W | set the T1 temperature parameter’s value for winter climatic compensation to <val> in °C/10 | ||
| t2.winter | <val> | R | the T2 temperature parameter’s value for winter climatic compensation is equal to <val> in °C/10 |
| W | set the T2 temperature parameter’s value for winter climatic compensation to <val> in °C/10 | ||
| lim.winter | <val> | R | the T-Lim temperature parameter’s value for winter climatic compensation is equal to <val> in °C/10 |
| W | set the T-Lim temperature parameter’s value for winter climatic compensation to <val> in °C/10 | ||
| setpoint.winter | <val> | R | the minimum set-point temperature for winter is equal to <val> in °C/10 |
| W | set the minimum set-point temperature for winter to <val> in °C/10 | ||
| setpoint.summer | <val> | R | the minimum set-point temperature for summer is equal to <val> in °C/10 |
| W | set the minimum set-point temperature for summer to <val> in °C/10 |
UISET Actions
| ID | Attribute | Set to | |
|---|---|---|---|
| k<n>.<addr>.name | value | shows the name assigned to the addressed thermostat | |
| k<n>.<addr>.temp | value | shows the measured room temperature in °C by the addressed thermostat | |
| k<n>.<addr>.setpoint.temp | value | shows the set-point temperature in °C on the addressed thermostat | |
| k<n>.<addr>.humidity | value | shows the measured relative humidity by the addressed thermostat | |
| k<n>.in.temp | value | shows the inlet temperature of the addressed KPM20 module | |
| k<n>.out.temp | value | shows the return temperature of the addressed KPM20 module | |
| k<n>.setpoint.temp | value | shows the working set-point temperature in °C on the addressed KPM20 module | |
| k<n>.valve | value | shows the opening percentage value of the mixing valve calculated by the addressed KPM20 module | |
| ext.temp | value | shows the measured external temperature in °C | |
| t1.winter | value | shows the T1 temperature parameter’s value for winter climatic compensation in °C | |
| t2.winter | value | shows the T2 temperature parameter’s value for winter climatic compensation in °C | |
| lim.winter | value | shows the T-Lim temperature parameter’s value for winter climatic compensation in °C | |
| setpoint.winter | value | shows the minimum set-point temperature for winter | |
| setpoint.summer | value | shows the minimum set-point temperature for summer | |
| connection.label.online | visible | true when the system is connected to HSYCO, false otherwise | |
| connection.label.offline | visible | true when the system is not connected to HSYCO, false otherwise | |
| season.label.winter | visible | true when the current season is set to winter, false otherwise | |
| season.label.summer | visible | true when the current season is set to summer, false otherwise | |
| k<n>.<addr>.mode.label.off | visible | true when the addressed thermostat is OFF, false otherwise | |
| k<n>.<addr>.mode.label.com | visible | true when the working mode of the addressed thermostat is set to “comfort”, false otherwise | |
| k<n>.<addr>.mode.label.stb | visible | true when the working mode of the addressed thermostat is set to “stand-by”, false otherwise | |
| k<n>.<addr>.mode.label.ngt | visible | true when the working mode of the addressed thermostat is set to “night”, false otherwise | |
| k<n>.<addr>.relay.label.0 | visible | true when the relay of the addressed thermostat is not active, false otherwise | |
| k<n>.<addr>.relay.label.1 | visible | true when the relay of the addressed thermostat is active, false otherwise | |
| k<n>.pump.label.0 | visible | true when the pump of the addressed KPM20 module is not active, false otherwise | |
| k<n>.pump.label.1 | visible | true when the pump of the addressed KPM20 module is active, false otherwise | |
USER Commands
| Name | Param | Action |
|---|---|---|
| k<n>.<addr>.setpoint.temp | <val> | sets the set-point temperature of the addressed thermostat to the specified value (expressed in °C/10) |
| up | increases the set-point temperature of the addressed thermostat by 0.5°C | |
| down | decreases the set-point temperature of the addressed thermostat by 0.5°C | |
| k<n>.<addr>.mode | off | sets the addressed thermostat on mode “OFF” |
| com | sets the addressed thermostat on mode “Comfort” | |
| stb | sets the addressed thermostat on mode “Stand-by” | |
| ngt | sets the addressed thermostat on mode “Night” | |
| season | summer | sets the working mode season to summer |
| winter | sets the working mode season to winter | |
| t1.winter | <val> | sets the T1 temperature parameter’s value for winter climatic compensation to the specified value (in °C/10) |
| t2.winter | <val> | sets the T2 temperature parameter’s value for winter climatic compensation to the specified value (in °C/10) |
| lim.winter | <val> | sets the T-Lim temperature parameter’s value for winter climatic compensation to the specified value (in °C/10) |
| setpoint.winter | <val> | sets the minimum set-point temperature for winter to the specified value (in °C/10) |
| setpoint.summer | <val> | sets the minimum set-point temperature for summer to the specified value (in °C/10) |
Release Notes
3.4.0
- initial version release
Vaisala is a registered trademarks of Vaisala Oyj.
