Industrielle styresystemer - Wiki
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After adding either, the topic must be set.
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MQTT
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"/status" Topic Overview (1 topic)
| Topic | Datatype | Typical Values | Publisher | Description |
|---|---|---|---|---|
/status | bool | 1 |
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WAGO MQTT Setup
Setting up a WAGO PFC200 PLC requires some configuration.
- Open the PLC's web server by entering its IP in a web browser and log in.
- Press "Configuration" in the menu bar.
- In the left menu, press "Cloud Connectivity".
- Press "Connection 1".
- Check Enabled.
- Set "Cloud Platform" to "MQTT AnyCloud".
- Set "Hostname" to the CDPStudio MQTTBroker's IP Address
- Set "Port Number" to the chosen port (1883).
- Set "Client ID" to a recognizable name such as "Wago".
- Set "Data Protocol" to "Native MQTT".
- Press "Submit".
- Press "Reboot" in the top right corner
The Wago is now configured to send MQTT data to the broker correctly.
CODESYS Creating a Publisher
To use MQTT with CODESYS, the WagoAppCloud library must be imported to the project. This can be done by:
- Press "Library Manager" in the current project.
- Press "Add Library".
- Expand "Application".
- Select "WagoAppCloud"
- Press OK.
A function block can then be created to simplify the use of the library:
Code Source: https://www.youtube.com/watch?v=UnhG15JFjao&t=822s&ab_channel=JugaadTech
This block can simply be added in a program like this:
Whenever the trigger gets a rising edge, it will publish the message to the broker.
CODESYS Creating a Subscriber
MQTT "/status" Topic Overview (1 topic)
| /status | bool | PLC | Should be published at the start of every update so CDP can detect loss of connection. Value should always be 1. |
MQTT "/settings" Topic Overview (32 topics)
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| Topic | Datatype | Typical Range | Publisher | Description |
|---|---|---|---|---|
| /sensor/water/ec | float | 0-30 | PLC | Water EC measurement. |
| /sensor/water/ph | float | 5-7 | PLC | Water PH measurement. |
| /sensor/water/temp | float | 10-40 | PLC | Water temperature measurement. |
| /sensor/air/temp | float | ? | PLC | Air temperature measurement. |
| /sensor/air/humidity | float | ? | PLC | Air humidity measurement. |
| /sensor/air/co2 | float | ? | PLC | Air CO2 measurement. |
PETERFORWIKI"/system" Topic Overview (8 topics)
| Topic | Datatype | Typical Range | Publisher | Description |
|---|---|---|---|---|
| '/state/valve/tank1/ebb' | bool | 0, 1, 2 | PLC | Light state, 0 Tank 1 drain/ebb valve state. 0 = auto, 1 = off, 1 2 = on. |
| '/state/valve/tank2/ebb' | bool | 0, 1, 2 | PLC | Light Tank2 drain/ebb valve state. 0 = auto, 1 = off, 1 2 = on |
| '/state/valve/tank1/flow' | bool | 0, 1, 2float | PLCTime | until light 1 toggles on or off, given in hours.Tank1 fill/flow valve state. 0 = auto, 1 = off, 2 = on |
| '/state/valve/tank2/flow' | bool | 0, 1, 2float | PLCTime until light 2 toggles on or off, given in hours. | Tank2 fill/flow valve state. 0 = auto, 1 = off, 2 = on |
| '/state/valve/threeway' | bool | 0, 1, 2 | PLC | Three-way valve state. 0 = auto, 1 = to reservoir (stirring), 2 = to tank1/2 |
| '/state/pump' | bool | 0, 1, 2 | PLC | Pump state. 0 = auto, 1 = off, 2 = on |
MQTT "/system" Topic Overview (8 topics)
| Topic | Datatype | Typical Range | Publisher | Description |
|---|---|---|---|---|
| /system/light1/state | bool | 0, 1 | PLC | Light state, 0 = off, 1 = on. |
| /system/light2/state | bool | 0, 1 | PLC | Light state. 0 = off, 1 = on |
| /system/light1/timeRemaining | float | 0-24 | PLC | Time until light 1 toggles on or off, given in hours. |
| /system/light2/timeRemaining | float | 0-24 | PLC | Time until light 2 toggles on or off, given in hours. |
| /system/tank1/state | bool | 0, 1 | PLC | Tank 1 current state. 0 = ebb, 1 = flow |
| /system/tank2/state | bool | 0, 1 | PLC | Tank 2 current state. 0 = ebb, 1 = flow |
| /system/tank1/timeRemaining | boolfloat | 0, 1-24 | PLC | Time remaining of tank 1 state. Given in hours. |
| /system/tank2/timeRemaining | boolfloat | 0, 1-24 | PLC | Time remaining of tank 2 state. Given in hours. |
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