SX-IO — Internal Data Points

Overview

In addition to external device polling, SX-IO can expose the SMX-RNS20’s own internal metrics as data points. These can be displayed on the cloud dashboard, published via MQTT, or used to trigger alerts — without needing to connect to any external PLC or sensor.

Available Internal Data Points

Data Point	Unit
WAN Signal Level	dBm (cellular) / % (WiFi)
WAN Signal Quality	%
CPU Temperature	°C
CPU Usage	%
Memory Usage	%
System Uptime	seconds
WAN IP Address	string
Active Connections	count
Data Sent (WAN)	bytes
Data Received (WAN)	bytes

Configuration

1. Log in to the SMX-RNS20 web interface → SX-IO → Sources → Add Source → Internal.
2. Select the internal data points you want to enable.
3. Set the update interval (e.g., 60 seconds for signal level, 5 seconds for active connections).
4. Under SX-IO → Outputs, add a Dashboard widget or MQTT topic for each internal metric.
5. Save. The data points appear in the Monitor view and can trigger alarm rules like any other SX-IO source.

Screenshots — INTERNAL Driver Setup

Step 1 — Modules → Driver

Step 2 — Add new driver

Step 3 — Driver settings: Name, Endpoint (any), Type = INTERNAL

Step 4 — Save driver

Step 5 — Status → Driver: INTERNAL driver shows green connected

Step 6 — Modules → Tag

Step 7 — Tag configuration: Name, Type, Address (internal metric name), Driver

Step 8 — Status → Tag: live internal metric value (e.g., signal level, CPU temperature)