Description
ABB Port Direct Access Expansion Card QLE2742-SR Model fo…
Direct access expansion for ABB PLCs, enabling flexible serial communication with multiple protocols and high isolation.
| Brand | ABB |
| Model | QLE2742-SR |
| Voltage | 24V DC (via backplane) |
| Country of Origin | Switzerland |
| Weight | 0.2 kg |
| Dimensions | 120 x 50 x 30 mm |
| Warranty | 1 year |
| Certifications | CE, UL, RoHS, IEC 61131-2 |
| SKU / MPN | QLE2742-SR |
| What’s in the box | Expansion card, mounting screws, documentation CD |
| Port Type | 2 x RS-232/RS-485 serial ports, software-selectable |
| Data Rate | Up to 115.2 kbps |
| Protocol Support | Modbus RTU, ASCII, DF1, custom protocols |
| Isolation | 1500V AC isolation between ports and backplane |
| Power Consumption | 2.5W typical |
| Operating Temperature | -20 to 60°C |
Key benefits: Dual serial ports, wide protocol support, robust isolation, easy integration with ABB automation systems.
Typical applications: PLC expansion, remote I/O communication, SCADA interfaces, industrial networking.
Order number: ABB Port Direct Access Expansion Card QLE2742-SR Model fo…
Lifecycle: Active
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Andrew C. –
Profibus modules arrived with proper firmware version. Plug and play.