Overview: ABB CI865 Communication Interface
When integrating legacy Satt I/O systems with modern AC 800M controllers, the ABB CI865 module provides a cost-effective bridge. This communication interface connects the AC 800M system to Satt ControlNet, allowing older Rack I/O and Series 200 I/O to function without a full system overhaul. By reusing existing I/O hardware, facilities avoid the high capital expense of replacing entire field wiring and termination assemblies. The CI865 is not a general ControlNet interface and cannot be used in High Integrity controllers, so verify your system architecture before ordering.
Key Technical Specifications
- Communication Protocol: ABB's Satt I/O
- Master/Slave Role: Master
- Hot Swap Support: Yes (online replacement without configuration)
- Max Units on CEX Bus: 4
- Connector Type: BNC
- 24 V Consumption (typ): 120 mA
- Operating Temperature: 0 to +55 °C (+32 to +131 °F)
- Storage Temperature: -40 to +70 °C (-40 to +158 °F)
- Protection Class: IP20 (per EN60529, IEC 529)
- Corrosion Protection: G3 compliant to ISA 71.04
- Dimensions: 59 mm (2.3 in.) wide, 185 mm (7.3 in.) high, 127.5 mm (5.0 in.) deep
- Weight (including base): 700 g (1.5 lbs)
Each of these specifications directly affects total cost of ownership. For example, the 120 mA typical current draw at 24 V reduces power supply loading, lowering energy costs in multi-module racks. The wide operating temperature range (0 to +55 °C) means the module can be installed in non-conditioned cabinets, saving on HVAC expenses. IP20 protection allows use in clean industrial environments without expensive enclosures.
Industry Applications
Legacy System Modernization: In process plants where Satt 19-inch rack I/O has been in service for decades, the CI865 enables a phased migration to AC 800M controllers. Instead of replacing all I/O modules at once, engineers can keep existing field wiring and I/O racks while upgrading only the controller and communication interface. This reduces downtime and avoids the cost of new termination panels.
Distributed I/O Scanning: The CI865 handles I/O scanning of up to 31 distributed I/O systems. For large facilities with multiple remote I/O racks, this reduces the number of communication interfaces needed, cutting hardware and installation costs. The master role means no additional configuration software is required before installation, saving engineering hours.
Installation & Setup Guidance
Mount the CI865 module onto the CEX bus of an AC 800M controller. Connect the BNC connector to the Satt ControlNet network. No pre-configuration is needed — the module supports hot swap, so you can install or replace it while the system is running. Ensure the 24 V supply can deliver at least 120 mA per module. Verify that your AC 800M controller is not a High Integrity type, as the CI865 cannot be used with HI controllers. For optimal reliability, keep the module within the 0 to +55 °C operating range and avoid condensation.
Maintenance & Reliability
Routine inspection of the BNC connector and 24 V power supply terminals is recommended. The G3 corrosion protection (ISA 71.04) ensures reliable operation in mildly corrosive environments, reducing the frequency of contact cleaning. Because the module supports hot swap, you can replace a failed unit without shutting down the entire system, minimizing production losses. No scheduled calibration is required for this communication interface, keeping maintenance costs low.
Compatibility & Integration
The CI865 is designed specifically for ABB's AC 800M platform and Satt ControlNet. It works with Satt 19-inch rack I/O and Series 200 I/O systems. It cannot be used as a general ControlNet interface or with High Integrity controllers. The module acts as a master on the Satt I/O bus, scanning up to 31 distributed I/O systems. Up to four CI865 modules can be installed on a single CEX bus, allowing connection to multiple Satt I/O networks. This focused compatibility ensures reliable data exchange without protocol conflicts.
Selection Guide & Purchasing Advice
Before purchasing the ABB CI865 (article number 3BSE040795R1), confirm that your controller is an AC 800M (non-High Integrity) and that your I/O system is Satt Rack I/O or Series 200. Verify that your network uses BNC connectors and that you have adequate 24 V power capacity. SpareTechPLC stocks this module and can advise on current lifecycle status and availability. Contact our team to ensure the CI865 matches your system requirements and to discuss volume pricing for multi-unit orders.
Frequently Asked Questions
Q: Can the CI865 be used with any ControlNet network?
A: No. The CI865 is specifically for ABB's Satt ControlNet protocol and cannot function as a general ControlNet interface.
Q: How many CI865 modules can I install in one AC 800M system?
A: Up to 4 modules on the CEX bus, allowing connection to multiple Satt I/O networks.
Q: Does the CI865 require configuration before installation?
A: No. It supports hot swap and does not require any pre-configuration.
Q: What is the maximum number of distributed I/O systems the CI865 can scan?
A: Up to 31 distributed I/O systems.
Q: Is the CI865 compatible with High Integrity controllers?
A: No. It cannot be used in a High Integrity controller.
