ABB TK851V010 connection cable

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ABB TK851V010 Connection Cable

1. Product Description

The ABB TK851V010 is a redundant controller connection cable designed for industrial automation systems. It facilitates communication between PLC controllers and I/O modules, supporting both RS232 (point-to-point) and RS485 (multi-drop) protocols .

Key features include:

• Single-ended common (COM) digital input structure for efficient wiring .

• Supports SINK (NPN) and SRCE (PNP) input configurations for sensor compatibility .

• Shielded design to reduce electromagnetic interference (EMI) .

2. Technical Specifications

3. Wiring & Configuration

✅ Single-Ended Common (COM) Input Wiring

• All input circuits share a common COM terminal inside the PLC .

• External devices (e.g., sensors, switches) must connect to X0, X1, X2... terminals .

✅ SINK vs. SRCE Modes

• SINK (NPN): COM → 24V+, external common → 24V– .

• SRCE (PNP): COM → 24V–, external common → 24V+.

✅ RS232 vs. RS485 Setup

• RS232: Point-to-point (1 master, 1 slave) .

• RS485: Multi-drop (1 master, up to 31 slaves) .

4. Applications

• Factory automation (PLC-to-sensor communication)

• Redundant control systems (dual-controller setups)

• Legacy equipment interfacing (RS232/RS485 conversion)

The structure and details of the product：

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