ABB CI610 3BHT300003R1 I/O Bus Extender Module ABB CI610 3BHT300003R1

The ABB CI610 3BHT300003R1 I/O Bus Extender is an I/O bus device designed to extend the ABB AC500 control system. Its primary function is to facilitate the connection of remote sensors and modules by extending the existing I/O bus, thereby enhancing the system’s flexibility and capacity.

The core functional bus extension capability extends the I/O bus of the ABB AC500 control system by 50 meters, supporting the connection of remote devices located far from the main controller.
By connecting multiple extenders in a Daisy-Chaining manner, the total distance can reach up to 200 meters, meeting the connection needs of decentralized I/O devices.
Compared to installing additional base units for cost and flexibility optimization, the CI610 provides a more economical solution that reduces system expansion costs.
Expand the coverage of the control system, integrate devices that were previously inaccessible due to distance limitations, and enhance the adaptability of the system.

Technical specification communication protocol:

with the proprietary protocol of the ABB AC500 system (specific protocol not disclosed).
Physical dimensions: approximately 120mm × 80mm × 60mm (typical industrial module dimensions).
Weight: approximately 2 kilograms.
Certification: May include CE and UL certifications to ensure compliance with safety standards.
Warranty: Generally, a warranty service of 12 months to 2 years is provided (subject to confirmation with the supplier).
Application scenario: Industrial automation: In scenarios where remote I/O devices need to be connected, such as distributed production lines, large equipment monitoring, etc.

System upgrade:

Increase I/O capacity for the existing ABB AC500 system without replacing the main controller.
Flexible deployment: Adapt to changes in factory layout and quickly adjust the positions of sensors and actuators.

Core Features and Advantages

The CI610 3BHT300003R1 has become a preferred choice for industrial long-distance distributed control, primarily due to its powerful communication extension capability and robust environmental adaptability for industrial sites. Its native support for both PROFIBUS DPv1 and CI protocols allows it to seamlessly integrate with ABB Pro Control systems and various automation components, enabling high-speed, low-latency data transmission of up to 100 Mbps, which fully meets the real-time control needs of industrial sites — this is particularly crucial in time-sensitive scenarios such as motor regulation and valve control.

Its maximum communication distance of 2000 meters is its core competitive advantage. This means distributed I/O stations can be deployed at any remote location in the plant, free from the spatial constraints of the central control room, greatly enhancing system layout flexibility. It is virtually tailor-made for large-scale sites such as refineries and thermal power plants with extensive footprints. The module is also designed for maximum reliability: its rugged hardware structure combined with a wide operating temperature range of -25°C to +60°C can easily withstand harsh on-site conditions such as dust and sudden temperature changes, and the IP20 protection rating provides basic dust protection, ensuring stable operation even in unattended remote enclosures.

The built-in advanced error detection mechanism enables quick fault localization and reduces the probability of unplanned downtime. The hot-swapping function is a boon for field engineers — module replacement or upgrade does not require shutting down the entire system, greatly simplifying daily maintenance processes and lowering operational costs. One easily overlooked feature is the module’s low-power design combined with efficient signal processing capability, which not only ensures energy efficiency but also maintains stable signal integrity. In addition, its wide voltage supply characteristic allows normal operation even with slightly poor on-site power supply conditions.

1.Power industry, the elevator industry, parking, automobile, auto ancillary.

2.feed industry, aluminum smelting machines, refrigeration industry.

3.steel industry, combustion control systems, non-ferrous metal smelting.

4.glass industry, construction machinery, textile machinery, water treatment

Core Technical Specifications

The organized parameter table caters to the need for quick reference during on-site selection, cabinet layout and system configuration, with core indicators at a glance:

Parameter Name	Parameter Value
Product Model	CI610 3BHT300003R1
Manufacturer	ABB
Product Type	I/O Bus Extender Module
Order Number	3BHT300003R1
Communication Protocols	PROFIBUS DPv1, CI (Control Information)
Max Communication Distance	2000 meters
Operating Voltage	24 VDC / 120 VAC
Input Current Handling	10mA
Output Current Handling (per channel)	20mA
Operating Temperature	-25°C to +60°C
Protection Rating	IP20
Dimensions (W×H×D)	40 mm × 273 mm × 252 mm
Weight	1.195 kg
Mounting Method	DIN rail mounting
Hot-Swap Support	Yes
Certifications	RoHS (compliant with EU Directive 2011/65/EU)