ABB NEMCA COZBU 103

1. Product Overview

ABB COZBU 103 is an interface card/communication module in the NEMCA (Non-Faradaic Electrochemical Modification of Catalytic Activity) system of ABB. This series of products is mainly used in industrial automation and control systems, serving as a NEMCA-HW (hardware) interface card to be responsible for data communication and signal transmission between systems.

2. Main Models and Parameters

Model	Specification	Description
COZBU 103 311/2	NEMCA Interface Card	Used with ROFBU 367 014/2
COZBU 103 342/4	EXLAN Control Card	Used with ROFBU 367 025/71

Operating Characteristics:

• Each channel is equipped with a pair of zeros (T off)
• T on and T off are configuration parameters for each channel
• The delay function is used to define the time between physical events and event detection

3. Product Features

• Specialized Interface Design - Hardware interface optimized for the NEMCA system
• Modular Structure - Can be used with other ABB control modules
• Industrial-Grade Reliability - Suitable for harsh industrial environments
• Stable Signal Transmission - Equipped with anti-interference capability

4. Structure and Composition

COZBU 103 is in the form of a printed circuit board (PCB) and belongs to a hardware interface module. Its internal structure includes:

• Interface control chip
• Signal transmission circuit
• Configuration parameter storage unit
• Channel control logic

5. Application Fields

According to its product characteristics, it is mainly applied in:

• Industrial automation control systems
• Power electronics and catalytic reaction monitoring systems
• Electrochemical process control
• Industrial equipment data acquisition and processing systems

6. Installation and Maintenance

Installation Notes:

• Ensure correct connection with the control backplane/ROFBU module
• Fully insert into the slot and fix with screws
• Check the cable connection sequence (corresponding to port1/port2)

Maintenance Recommendations:

• Regularly check the working status of the module
• Avoid long-term use in high-temperature and high-humidity environments

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