## The switch "output_json_string" enables output of the measurement as json.
## That way it can be used in in a subsequent processor plugin, e.g. "Starlark Processor Plugin".
# output_json_string = false
## Define extra tags related to subscription to be added to the output metric (optional)
# [inputs.ctrlx_datalayer.subscription.tags]
# subscription_tag1 = "subscription_tag1"
# subscription_tag2 = "subscription_tag2"
## The interval in which messages shall be sent by the ctrlX Data Layer to this plugin. (default: 1s)
## Higher values reduce load on network by queuing samples on server side and sending as a single TCP packet.
# publish_interval = "1s"
## The interval a "keepalive" message is sent if no change of data occurs. (default: 60s)
## Only used internally to detect broken network connections.
# keep_alive_interval = "60s"
## The interval an "error" message is sent if an error was received from a node. (default: 10s)
## Higher values reduce load on output target and network in case of errors by limiting frequency of error messages.
# error_interval = "10s"
## The interval that defines the fastest rate at which the node values should be sampled and values captured. (default: 1s)
## The sampling frequency should be adjusted to the dynamics of the signal to be sampled.
## Higher sampling frequence increases load on ctrlX Data Layer.
## The sampling frequency can be higher, than the publish interval. Captured samples are put in a queue and sent in publish interval.
## Note: The minimum sampling interval can be overruled by a global setting in the ctrlX Data Layer configuration ('datalayer/subscriptions/settings').
# sampling_interval = "1s"
## The requested size of the node value queue. (default: 10)
## Relevant if more values are captured than can be sent.
# queue_size = 10
## The behaviour of the queue if it is full. (default: "DiscardOldest")
## Possible values:
## - "DiscardOldest"
## The oldest value gets deleted from the queue when it is full.
## - "DiscardNewest"
## The newest value gets deleted from the queue when it is full.
# queue_behaviour = "DiscardOldest"
## The filter when a new value will be sampled. (default: 0.0)
## Calculation rule: If (abs(lastCapturedValue - newValue) > dead_band_value) capture(newValue).
# dead_band_value = 0.0
## The conditions on which a sample should be captured and thus will be sent as a message. (default: "StatusValue")
## Possible values:
## - "Status"
## Capture the value only, when the state of the node changes from or to error state. Value changes are ignored.
## - "StatusValue"
## Capture when the value changes or the node changes from or to error state.
## See also 'dead_band_value' for what is considered as a value change.
## - "StatusValueTimestamp":
## Capture even if the value is the same, but the timestamp of the value is newer.
## Note: This might lead to high load on the network because every sample will be sent as a message
## even if the value of the node did not change.
# value_change = "StatusValue"
```
## Metrics
All measurements are tagged with the server address of the device and the
corresponding node address as defined in the ctrlX Data Layer.
- measurement name
- tags:
-`source` (ctrlX Data Layer server where the metrics are gathered from)
-`node` (Address of the ctrlX Data Layer node)
- fields:
-`{name}` (for nodes with simple data types)
-`{name}_{index}`(for nodes with array data types)
-`{name}_{jsonflat.key}` (for nodes with object data types)
### Output Format
The switch "output_json_string" determines the format of the output metric.
#### Output default format
With the output default format
```toml
output_json_string=false
```
the output is formatted automatically as follows depending on the data type:
##### Simple data type
The value is passed 'as it is' to a metric with pattern:
