ABB CI810B 3BSE020520R1 S800 I/O AF100 Interface

Description

Key Technical Specifications

The CI810B is designed as the AF100 communication interface for ABB S800 I/O systems. It includes two AF100 twisted-pair modems and is supplied with the required power connector, TB807 Modulebus terminator, AF100 connector, and terminal blocks. The module supports a communication rate of 1.5 Mbit/s.

Product Introduction

The ABB CI810B (3BSE020520R1) is an AF100 Fieldbus Communication Interface that connects S800 I/O stations to the ABB Advant Fieldbus 100 network. It enables deterministic communication between distributed I/O and Advant controllers in process automation applications including power generation, chemical processing, oil and gas, and pulp and paper plants.

Although the Advant platform is a mature product line, many facilities continue operating these systems because of their proven reliability. For planned maintenance, replacing a failed CI810B is typically more economical than upgrading the complete control architecture.

Installation & Configuration Guide

Stage 1 – Pre-Installation Preparation

⚠️ Safety First

1. Shut down the controller and associated process.
2. Apply Lock-Out/Tag-Out procedures.
3. Remove cabinet power.
4. Wait at least five minutes for stored energy to discharge.
5. Wear an ESD wrist strap.

Required Tools

• Phillips screwdriver
• Digital multimeter
• ESD wrist strap
• Wire identification labels
• Camera for recording wiring

Before Removal

• Backup controller configuration.
• Record AF100 network settings.
• Photograph terminal wiring.
• Verify the existing module part number.

Stage 2 – Removing the Existing Module

1. Disconnect cabinet power.
2. Remove fieldbus connectors.
3. Disconnect the Modulebus connector.
4. Release retaining clips.
5. Carefully remove the module.

⚠️ Keep the original module until the replacement has successfully completed commissioning.

Stage 3 – Installing the New Module

1. Verify the replacement is CI810B (3BSE020520R1).
2. Install the module into the S800 I/O base.
3. Reconnect the AF100 connectors.
4. Install the TB807 Modulebus terminator.
5. Confirm all connectors are fully seated.

Installation Checklist

• ✔ Correct model number
• ✔ AF100 connectors secure
• ✔ Modulebus terminator installed
• ✔ Power connector installed
• ✔ Wiring verified

Stage 4 – Power-On & Commissioning

1. Restore cabinet power.
2. Verify module LED status.
3. Confirm AF100 network communication.
4. Verify S800 I/O station recognition by the controller.
5. Perform communication diagnostics.

⚠️ Field Experience: The most common commissioning issue is not hardware failure but incorrect AF100 network addressing or missing Modulebus termination. Check both before replacing another module.

CI810B

CI810B

Frequently Asked Questions

1. What is the CI810B used for?

The CI810B provides communication between ABB S800 I/O stations and the Advant Fieldbus 100 (AF100) network, allowing distributed I/O to exchange data with Advant controllers.

2. Is the CI810B still manufactured?

No. It is considered a legacy ABB product. Most available inventory consists of new surplus stock or professionally tested refurbished units.

3. What accessories are included?

A standard package includes:

• Power Supply Connector (3BSC840098R1)
• TB807 Modulebus Terminator
• Two Terminal Blocks
• AF100 Connector

These accessories are specified in the ABB product documentation.

4. Can the CI810B be hot-swapped?

No. Power should be removed before replacing the communication interface. Removing the module under power may interrupt AF100 communication and cause I/O faults.

5. Why is the replacement module not communicating?

Typical causes include:

• Incorrect AF100 cable connections
• Missing TB807 Modulebus terminator
• Modulebus connection issues
• Controller configuration mismatch
• Network addressing errors

6. Is CI810B compatible with S800 I/O?

Yes. The CI810B is specifically designed as the AF100 Fieldbus Communication Interface for ABB S800 I/O systems operating on the Advant Fieldbus 100 network.