
Products
EU/US Standard DC Single-Gun Onboard PLC Main Control Board

Product Overview
The SDEE-DC-OB1CC onboard PLC is the main control board developed in-house for our DC charging series, primarily used in Euro-standard single-gun DC chargers and North American-standard single-gun DC chargers. It is suitable for wall-mounted compact DC units, floor-standing all-in-one stations, or charging piles.
The hardware integrates Ethernet, 4G, Bluetooth, and Wi-Fi modules on-board, with connectivity modes swappable directly from the screen.
Onboard OCPP1.6J communication protocol, expandable to OCPP2.0, supports Tuya, and enables connection to a master board maintenance platform abroad.
Supports multiple screen sizes (typical: 4.3/7/10/13 inches), multi-language display, and UI customization.
Supports multiple charging methods including EVCCID (MAC), card swipe with POS, password-based, and QR code scanning.
Supports EMS integration, power curtailment, on-demand diagnostic log retrieval, and OTA updates (via operations platform, maintenance platform, or direct from the charging station screen).
Integrated with major international platforms (PEA, PLN, LMS, MONTA). OCA certified for client chargers; TUV certified.
Built-in PLC.
Specifications
| Power | 30kW~480kW |
| Input Voltage | 12V |
| Input Current | ≥2A |
| Card Reader Interface | 1-port 232 interface supports first-card readers/POS terminals |
| Display Interface | 1-channel 232 interface supports 5V/12V power output |
| Indicator LED Interface | 2 group drivers: support constant-on, running light, and SOC light |
| DI digital input interface | 5-channel input interface, active |
| DO has been issued with an interface. | 5-port passive interface |
| CC1 Sampling Interface | 1-channel CC1 analog sampling interface (for national standard charging guns) |
| Electronic Lock Control Interface | 1-channel pulse drive, supports power-loss unlocking (GB standard connector only) |
| Gun temperature sampling interface | 2 channels support PT1000 sensors for real-time charging gun temperature monitoring. |
| Electric meter communication interface | 1 485 ports supporting DL/T645-2007 protocol and MID-compliant meters |
| Insulation Monitoring Module Communication Interface | 1-channel 485 interface |
| Reserve 485 communication interface | 1 lanes, supporting EMS integration or liquid-cooled supercharging gun connection |
| Debug Interface | 1-port 232 interface; supports logging and main control board parameter modification |
| Network Communication Interface | Ethernet standard; 4G/Bluetooth/Wi-Fi optional |
| Onboard CAN interface | 2 CAN interfaces, connected to the power module and BMS/SECC respectively |
| Operating Temperature | -40°C ~ 85°C |
| Storage Temperature | -20°C ~ 65°C |
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