ABB ci590-cs31-ha-xc:s500, bus module 16dc, 2xcs31

Why Choose the ABB CI590-CS31-HA-XC High Availability CS31 Interface Module?

The ABB CI590-CS31-HA-XC is a robust S500-XC high-availability CS31 communication interface module designed for decentralised I/O applications within ABB AC500-XC automation systems. It combines redundant CS31 fieldbus communication with 16 configurable 24 V DC digital input/output channels, providing flexible signal handling and dependable communication for critical industrial installations.

The CI590-CS31-HA-XC incorporates two independent RS485 CS31 interfaces, enabling connection to two separate CS31 buses for redundancy, backup and high-availability applications. Its 16 configurable channels can operate as 24 V DC digital inputs, transistor outputs or re-readable combined input/output channels, while selected channels can also be configured for fast-counter functionality.

As the XC eXtreme Conditions version of the CI590-CS31-HA, the module is designed for ABB AC500-XC installations operating in demanding environments. Digital outputs are rated at 24 V DC / 0.5 A and include short-circuit and overload protection. The module uses a compatible TU552-CS31-XC terminal unit for redundant CS31 fieldbus connections and can be extended with additional S500-XC I/O modules.

Key Advantages

• Designed for high-availability and redundant CS31 automation systems.
• Two independent RS485 CS31 interfaces provide redundant communication paths.
• 16 configurable 24 V DC digital input/output channels provide flexible local I/O.
• Digital outputs support up to 0.5 A per channel with short-circuit and overload protection.
• Supports fast-counter functionality on selected configurable channels.
• XC construction is designed for demanding industrial environmental conditions.

Key Features

• ABB S500-XC / AC500-XC communication interface module.
• 2 independent CS31 bus interfaces for redundant operation.
• Proprietary ABB CS31 protocol over RS485.
• 16 configurable digital input/output channels.
• 24 V DC digital input operation.
• 24 V DC transistor outputs rated up to 0.5 A.
• Short-circuit and overload-protected digital outputs.
• Re-readable output functionality for combined input/output operation.
• Up to 2 configurable channels can be used for fast-counter functions.
• Rotary switches for station address configuration.
• Module LED indication for communication, signal states and diagnostics.
• Extendable with up to 7 additional I/O modules.

Redundant CS31 Communication for Demanding Automation

High-availability automation systems use redundant communication paths to reduce reliance on a single fieldbus connection. The ABB CI590-CS31-HA-XC provides two electrically independent RS485 interfaces for connection to separate CS31 buses, allowing compatible control architectures to maintain a backup communication path for decentralised I/O.

The module also provides 16 configurable digital channels for local signal acquisition and control. Combined with its XC construction, protected transistor outputs, diagnostic functionality and S500-XC expansion capability, the CI590-CS31-HA-XC is well suited to distributed automation systems where communication availability and dependable operation in challenging environments are important.

Typical Applications

• ABB AC500-XC high-availability automation systems.
• Redundant CS31 fieldbus networks.
• Decentralised industrial I/O stations.
• Process and production automation systems.
• Industrial machinery requiring redundant communication.
• Automation installations operating in demanding environmental conditions.