The ACE969 TP2 (ACE969TP-2) serves as the dedicated communication bridge between Schneider Electric Sepam protection relays and RS485 networks. It supports both Modbus RTU and DNP3 industrial protocols, providing engineers with the flexibility to integrate Sepam relays into a wide variety of SCADA and automation platforms.
Sepam protection relay families (series 20/40/60/80) leverage the ACE969 TP2 to enable advanced features including remote monitoring, fault recording, and remote protection setting updates. This guide covers the complete communication configuration workflow.
Communication Configuration Steps
- Step 1: Insert the ACE969 TP2 module into the Sepam relay's communication card slot
- Step 2: Set the RS485 communication address (1–247) using the rotary switch
- Step 3: Configure the baud rate on the Sepam front panel (default: 19200 bps)
- Step 4: Select the communication protocol (Modbus or DNP3)
- Step 5: Connect the RS485 bus A and B terminals; fit termination resistors at both ends
- Step 6: Add the corresponding device node in the upstream SCADA system
"With the ACE969 TP2, engineers can integrate Sepam relays into existing RS485 automation networks for centralized monitoring and management."
Schneider Electric's official YouTube channel provides a step-by-step video tutorial for configuring the ACE969TP-2, demonstrating the full process from hardware installation to software parameter setup — an invaluable reference for field engineers.
