BL193 SNMP Edge I/O Module for building an intelligent cabinet monitoring system, enabling real-tim monitoring and anomaly alerts for cabinet PDU current and temperature.
Case Details
With the continuous expansion of data center scale and increasing equipment density in cabinets, monitoring power supply and ambient temperature has become critical. Traditional manual inspection methods can no longer meet real-time requirements. A large data center adopted the BL193 SNMP Edge I/O Module to build an intelligent cabinet monitoring system, enabling real-tim monitoring and anomaly alerts for cabinet PDU current and temperature.
System Components
- Monitoring Terminal: BL193 SNMP Edge I/O Module (configured with Y31 analog input module)
- Sensors: 4-20mA current transmitters (connected to PDU main circuits), PT100 temperature sensors (installed at the top, middle, and bottom of cabinets)
- Network Architecture: Connected to the data center management network via dual Ethernet ports
- Management Platform: Integrated with the existing network management system
Functionality Implementation
- Collects branch current data from smart PDUs via the BL193's RS485 interface (Modbus RTU protocol)
- Directly acquires 4-20mA current signals via analog input channels (for non-smart PDU scenarios)
- Gathers data from three PT100 temperature sensors via the RTD module
- Data Conversion: Converts raw data into SNMP OID objects.
- Current exceeding 80% of rated value → Triggers SNMP trap alert
- Temperature gradient >5°C (difference between top and bottom) → Sends email notification
- Any temperature exceeding 35°C → Activates air conditioning control system
- Resets overloaded PDUs remotely via SNMP SET commands
- Controls cabinet emergency fans via relay output modules
Implementation Results
- Alert response time reduced from hours to seconds
- Cabinet power incident rate decreased by 72%
- Air conditioning energy consumption reduced by 15% (through precise temperature control)
- Operational efficiency improved by 60%
Maintenance Recommendations
- Enable hardware watchdog auto-reboot functionality.
- Regularly calibrate temperature sensors (via BL193's web interface).
- Configure primary and backup SNMP trap target addresses.
To learn more about BL193 SNMP Edge I/O Module, please visit: https://bliiot.com/products/snmp-edge-io-module-bl193
