Description
Detailed Parameter Table
| Parameter Name | Parameter Value |
| Product Model | ABB CI801 |
| Manufacturer | ABB |
| Product Category | Communication Interface Module |
| Compatible Systems | ABB 800xA, Advant Controller, AC 800M |
| Communication Protocols | Serial (RS-232/RS-422/RS-485), Modbus RTU |
| Data Transfer Rate | Up to 115.2 kbps |
| Power Supply | 24V DC (±10%) |
| Operating Temperature | -25°C to +70°C |
| Protection Rating | IP20 |
| Mounting Type | DIN Rail |
| Dimensions (W×H×D) | 45 × 132 × 127 mm |
| Isolation Voltage | 500V AC (field-to-system) |
ABB CI801
Product Introduction
The ABB CI801 is a serial communication interface module designed for seamless integration with ABB’s 800xA, Advant Controller, and AC 800M systems. It enables reliable point-to-point and multi-drop communication with field devices, RTUs, and third-party systems via RS-232, RS-422, RS-485, and Modbus RTU protocols.
Ideal for industrial automation, the ABB CI801 ensures robust data exchange in process control, SCADA, and remote monitoring applications. Its rugged design and electrical noise immunity make it suitable for harsh industrial environments.
Core Advantages and Technical Highlights
1. Flexible Serial Communication
Supports RS-232 (point-to-point), RS-422/485 (multi-drop)
Compatible with Modbus RTU for standardized device integration
2. Reliable Data Transmission
500V AC isolation prevents ground loops and noise interference
Baud rates up to 115.2 kbps for efficient data transfer
3. Easy Integration with ABB Systems
Plug-and-play compatibility with ABB 800xA, AC 800M, and Advant Controller
Reduces engineering effort with pre-configured driver support
4. Industrial-Grade Durability
Wide temperature range (-25°C to +70°C)
DIN rail mounting for secure installation in control panels
5. Diagnostic Features
LED status indicators for quick troubleshooting
Configurable timeout and error handling for stable communication
ABB CI801
Typical Application Scenarios
The ABB CI801 is widely used for:
Process Automation: Connects flow meters, pressure transmitters, and analyzers via Modbus RTU.
Remote Monitoring: Interfaces with RTUs and telemetry systems in water/wastewater plants.
Manufacturing: Links barcode scanners, weigh scales, and legacy PLCs via RS-485.
Energy Management: Enables meter data collection in power distribution systems.
Related Model Recommendations
ABB CI810B – Adds PROFIBUS DP support
ABB CI830 – PROFINET communication module
ABB CI854 – Ethernet/IP interface for 800xA
ABB CI871 – OPC server connectivity module
ABB CI858 – Redundant communication for high availability
These models extend functionality beyond the ABB CI801, offering additional protocol options.
Installation & Maintenance
Installation Preparation
Verify 24V DC power supply (±10%).
Use shielded twisted-pair cables for RS-485 networks.
Ensure proper termination resistors for multi-drop configurations.
Maintenance Recommendations
Check terminal screws periodically for tightness.
Monitor LED indicators for communication errors.
Update firmware as per ABB guidelines.
Service & Warranty
36-month warranty covering manufacturing defects.
Global technical support for configuration and troubleshooting.
Long-term lifecycle support (10+ years).
Conclusion
The ABB CI801 is a cost-effective, reliable serial communication interface for industrial automation. Its Modbus RTU and RS-232/485 support make it ideal for integrating legacy devices into modern control systems.
For higher-speed or Ethernet-based communication, consider the CI810B (PROFIBUS) or CI854 (Ethernet/IP).
