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Phone: +86 16626708626Description
Key Technical Specifications
- Protocol: Modbus TCP
- Ethernet Ports: Dual channels
- Function: Master and slave support
- Integration: Direct connection to AC800M controller
- Network Speed: 10/100 Mbps Ethernet
- Mounting: DIN-rail in AC800M rack
- Redundancy: Supported in appropriate configurations
- Configuration: Via Control Builder
Product Introduction
The ABB CI867 (3BSE043660R1) is a Modbus TCP communication interface module for the AC800M controller. It provides dual Ethernet ports for connecting to external devices using the Modbus TCP protocol.
In AC800M projects, this module simplifies integration with third-party PLCs, drives, instruments, and SCADA systems that use Modbus TCP without additional gateways.
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No Modbus communication | Network or IP issue | ✅ High | Check Ethernet link LEDs and ping device | Verify IP settings and cable |
| Slave devices not responding | Configuration mismatch | ✅ High | Review Modbus mappings in Control Builder | Confirm slave addresses and register types |
| Intermittent connection drops | Network traffic or switch | ✅ Medium | Monitor packet statistics | Optimize network segmentation |
| Module not detected | Backplane or firmware | ✅ High | Check module status in controller diagnostics | Reseat module and verify firmware |
| Timeout errors | Timeout settings too low | ❌ Low | Increase timeout values in application | Adjust based on network latency |
Share Control Builder diagnostics and network traces with support if issues continue.
- CI867 3BSE043660R1
- CI867 3BSE043660R1
Frequently Asked Questions (FAQ)
Can the CI867 act as both master and slave? Yes. It supports Modbus TCP master and slave functionality on the dual ports.
How many connections does it support? Multiple simultaneous Modbus TCP connections depending on the application load and controller performance.
Is it compatible with redundant AC800M setups? Yes, when configured properly with redundant controllers.
What software is used for configuration? ABB Control Builder. Import the CI867 hardware definition and set up Modbus channels and mappings.
Why New Surplus? Genuine ABB new units from excess stock. They pass functional testing on AC800M racks and ship with documentation and our 1-year warranty.
Any special cabling needed? Standard Ethernet cables. Use shielded cables in noisy industrial environments and follow proper grounding practices.
Field note before swap? Photograph existing Ethernet connections and note IP addresses. Take a backup of the application. Use ESD protection when handling the module. Verify network isolation between control and enterprise traffic.
