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The tables below illustrates the interaction between data acquisition, data processing and data provisioning for IT/Cloud
applications with a netIOT Edge Gateway. Some data acquisition modules can be used multiple times in a single gateway
to manage connections to multiple devices, also if they attached to different shop floor networks. This capability is called
here as single or multi network / device.
1. Data acquisition via OPC UA Client
| Data Capturing | Data Processing | IT/Cloud Interface | (S)ingle / (M)ulti network |
|---|
| node-RED OPC UA Client node | Node RED nodes | Node-RED nodes | M |
2. Data acquisition via Edge Server
| Data Capturing | Data Processing | IT/Cloud Interface | (S)ingle / (M)ulti network |
|---|
| Edge Server service running on the gateway | - | OPC UA Server | S |
| Edge Server service running on the gateway | Node-RED (via OPC UA Client or RESTful API) | Node-RED nodes | S |
| Edge Server service running on the gateway | - | RESTful API | S |
3. Data acquisition via PLC access
| Data Capturing | Data Processing | IT/Cloud Interface | (S)ingle / (M)ulti network |
|---|
| node-RED S7Comm (SIMANTIC S7-300/1200/1500) node | Node-RED nodes | Node-RED nodes | M |
4. Data acquisition via IO Device (slave) integration
| Data Capturing | Data Processing | IT/Cloud Interface | (S)ingle / (M)ulti network |
|---|
| node-RED IO Device (slave mode) node | Node-RED nodes | Node-RED nodes | S |
The combination of IO device (slave mode) and Passive Fieldbus Integration is not supported, because both capturing modes using
the same industrial ethernet interface. Otherwise, multiple capturing options can be combined.
5. Data acquisition via Passive Fieldbus integration
| Data Capturing | Data Processing | IT/Cloud Interface | (S)ingle / (M)ulti network |
|---|
| Passive Fieldbus integration service, running on the gateway | Custom Docker Container | Custom Application Interface | S |
| Passive Fieldbus integration service, running on the gateway | Node-RED nodes | Node-RED nodes | S |
| Passive Fieldbus integration service, running on the gateway | - | OPC UA Server | S |
The combination of IO device (slave mode) and Passive Fieldbus Integration is not supported, because both capturing modes using
the same industrial ethernet interface. Otherwise, multiple capturing options can be combined.
6. Data acquisition via MQTT
| Data Capturing | Data Processing | IT/Cloud Interface | (S)ingle / (M)ulti network |
|---|
| node-RED MQTT nodes | Node-RED nodes | Node-RED nodes (pub) | M |
| node-RED MQTT (sub) nodes | By any application running on Docker or in the IT environment with integrated MQTT client (pub/sub) | MQTT client (sub) | M |