ABB ICMK14F1-L13.0 Remote Unit

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ABB ICMK14F1-L13.0 Remote Unit

1. Product Description

The ABB ICMK14F1-L13.0 is a remote I/O expansion unit specifically designed for AC31-50 series PLCs (e.g., 07KR51) and AC500 PLC systems, enabling distributed industrial automation control. This module communicates with the main PLC via CS31 bus (RS485-based), supporting long-distance I/O expansion with a maximum communication range of 500 meters (extendable to 2000 meters). It is ideally suited for applications such as low-voltage switchgear, automatic transfer switch (BZT) systems, and smart power distribution systems.

Featuring a modular design, the ICMK14F1-L13.0 can expand 6 local I/O units and support networking of up to 32 remote units, significantly reducing traditional hardwiring requirements while enhancing system reliability and flexibility. Its standard configuration includes 8 digital inputs (DI) and 6 relay outputs (RL), with full compatibility to AC31-50 series PLC hosts (e.g., 07KR51) for standardized design.

2. Technical Specifications

3. Key Advantages

✅ Distributed Control, Reduced Wiring

• Replaces traditional hardwiring with CS31 bus, lowering installation costs and improving system reliability.

✅ High Scalability & Flexibility

• Supports networking of 32 remote units, suitable for large-scale automation systems.

• Seamless integration with AC31/AC500 PLCs, compatible with multiple bus protocols including MODBUS and Profibus-DP.

✅ Industrial-Grade Reliability

• Utilizes shielded twisted-pair cables (RVVP-2×0.7) for enhanced noise immunity.

• Hot-swappable design enables online replacement, minimizing downtime.

✅ Standardized Design

• Identical form factor to AC31 PLC (07KR51) for easy installation and replacement.

• LED status indicators for real-time monitoring and fault diagnosis.

4. Typical Applications

1. Low-Voltage Switchgear (BZT Systems)

   • Remote control of incoming and bus-tie circuit breakers for automatic transfer logic.

2. Distributed Industrial Automation

   • I/O point expansion in water treatment and energy management systems, reducing field wiring.

3. CNC Machine Control

   • Integration with CNC systems for remote signal acquisition and program selection.

4. Robot External I/O Expansion

   • Provides external signal interfaces (e.g., safety interlock) for ABB robots.

5. Usage Notes

⚠ Installation & Configuration

• CS31 bus must use daisy-chain topology, avoiding star connections.

• Master station (PLC) address is fixed at 62, while slave stations (ICMK14F1) use addresses 1-61.

⚠ Communication Optimization

• Use shielded twisted-pair cables (RVVP-2×0.7) with single-point grounding to minimize noise interference.

• Install 120Ω termination resistors at both bus ends to ensure signal integrity.

⚠ Maintenance & Troubleshooting

• Regularly check power supply polarity (24V DC) and LED status indicators.

• Power off before module replacement to prevent short-circuit risks.

The structure and details of the product：

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