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Description
Product Description
The CI853A from ABB is a serial communication interface module engineered for the AC 800M controller within the System 800xA automation platform. Designed for industrial-grade reliability, it provides flexible serial connectivity and supports multiple communication protocols for robust integration of external devices and subsystems.
Technical Specifications
| Specification | Details |
|---|---|
| Model | CI853A |
| Module Type | Communication Interface Module |
| Manufacturer | ABB |
| Interfaces | RS‑232C (standard), RS‑485 (optional) |
| Supported Protocols | COMLI (ABB proprietary), Modbus RTU |
| Communication Mode | Half-duplex, Master/Slave |
| Hot Swap | Supported |
| Maximum Cable Length | Up to several kilometers with fiber optic converter |
| Controller Compatibility | AC 800M, System 800xA |
| Operating Temperature | 0 to +55 °C (+32 to +131 °F) |
| Storage Temperature | -40 to +70 °C (-40 to +158 °F) |
| Corrosion Protection | G3 compliant per ISA 71.04 |
| Protection Class | IP20 (EN60529 / IEC 529) |
| Certifications | CE, ABS, BV, DNV-GL, LR |
| Compliance | EU RoHS, UAE RoHS, CN RoHS, WEEE Directive |
| Dimensions (W×H×D) | 59 × 185 × 127.5 mm (2.3 × 7.3 × 5.0 in) |
| Weight | 1.5 lbs |
Key Features
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Supports both ABB’s proprietary COMLI protocol and the widely adopted Modbus RTU standard.
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Hot-swappable module reduces system downtime during maintenance.
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Fiber optic converters allow extended communication over long distances.
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Can operate as both Master and Slave for versatile system integration.
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Built for industrial environments in manufacturing, energy distribution, and transportation systems.
Typical Applications
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Process Automation: Interfaces with sensors, actuators, and industrial subsystems.
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Energy Systems: Communication with monitoring, metering, and distribution devices.
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Transportation Infrastructure: Reliable data exchange in railway signaling and control systems.
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Legacy Equipment Integration: Supports older communication technologies, including dial-up modems.
FAQ
Q: Can the CI853A module be replaced without shutting down the AC 800M system?
A: Yes, it supports hot-swap functionality for seamless replacement.
Q: What protocol should I use for maximum compatibility?
A: COMLI is ABB-specific, while Modbus RTU provides broad interoperability with third-party devices.
Q: Can I extend the communication distance beyond standard serial cable limits?
A: Yes, using fiber optic converters, communication can span several kilometers.
Q: Is the module compatible with non-ABB controllers?
A: No, it is designed specifically for AC 800M controllers within System 800xA.
Features
We welcome bulk orders and have a minimum order quantity of just one unit.
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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