ABB IIMSM01 bus serial I/O module

1. Product Overview

The ABB IIMSM01 Bus Serial I/O Module is a critical communication unit for ABB INFI 90 Distributed Control Systems (DCS), enabling serial bus communication between distributed field I/O and the main controller.
It handles I/O data acquisition, status monitoring, and signal transmission, supporting digital inputs/outputs (DI/DO) and analog inputs/outputs (AI/AO).
IIMSM01 is ideal for expanding system I/O points and providing reliable remote I/O communication, enhancing the flexibility and scalability of the control system.

2. Technical Specifications

3. Features & Advantages

• High-speed and reliable serial communication from 19.2 kbps to 115.2 kbps.

• Multi-type I/O support for both digital and analog signals.

• Electrical isolation to prevent bus interference and protect modules.

• Modular design allows plug-in installation and easy expansion.

• Full system compatibility with ABB INFI 90, Bailey, and Symphony systems.

• Industrial-grade reliability suitable for continuous operation.

4. Application Areas

• Remote I/O expansion for ABB INFI 90 / Bailey / Symphony DCS systems

• Industrial automation and process control

• Petrochemical, power generation, and metallurgical process control

• Water treatment and environmental monitoring systems

• Automated production lines and energy management systems

• Field device interface extension in distributed control systems

5. Precautions

1. Disconnect power before installation or maintenance.

2. Ensure proper insertion to avoid bus interface damage.

3. Use shielded cables and proper grounding to prevent interference.

4. Periodically check module status and communication LEDs.

5. Avoid long-term use in high humidity, high temperature, or corrosive environments.

6. Do not disassemble or modify internal circuits.

7. Use only ABB-certified modules and accessories.

The structure and details of the product：

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