SWYCH FOR
COLD CHAIN
Mount a MD1/2 microPLC outside the cool room — wireless temp logging through insulated panels where WiFi can't reach.
THE OLD WAY
- 01.WiFi loggers struggle to punch through insulated, metal-clad cool room walls.
- 02.Manual temperature logs are error-prone and a liability at audit time.
- 03.Cloud-subscription loggers hold your compliance data hostage behind monthly fees.
THE SWYCH WAY
- 01.Drop-in MD1/2 microPLC: Reads hardwired RTD probes via Modbus and bridges data wirelessly over LoRa or HaLow — penetrates panels where WiFi fails.
- 02.Digital inputs on-board: Wire door reed switches directly to the MD1/2 microPLC for open/close alerts.
- 03.Your data, locally: The MD1/2 microPLC makes readings available via webAPI and MQTT — log to your own server, no cloud subscription required.
- 04.Slots into existing systems: Push data via Modbus RTU/TCP to your BMS, Node-RED, Frigid.Cloud, or any MQTT broker.
DEPLOYMENT SCENARIOS
❄️
Cool Room Temps
Wire RTD probes to a Modbus sensor, mount the MD1/2 microPLC outside the panel — data bridges out wirelessly.
🚪
Door Open Alerts
Connect a reed switch to a digital input — get alerted when a door is left open too long.
⏱️
Defrost Monitoring
Read defrost relay status via a digital input to track cycle frequency and duration.
🧊
Freezer Rooms
Same setup works in sub-zero environments — the MD1/2 microPLC sits outside, probes go inside.
Ready to upgrade your infrastructure?
Deploy a pilot system in under 2 hours. minimal downtime. Maximum efficiency.