ABB 3BSE018103R0001 CI853K01 Dual RS232-C Interface Module for AC 800M

ABB 3BSE018103R0001 is associated with the ABB CI853K01 Dual RS232-C Interface,
identified in ABB product documentation by the product number 3BSE018103R1.
The CI853K01 is a communication interface used within ABB AC 800M automation
systems to provide serial communication capabilities.

The interface is designed for applications where serial communication is required
between the AC 800M control environment and external equipment. ABB documentation
identifies the CI853 as a communication interface with two serial communication
channels. The product package includes the CI853 communication interface and the
TP853 baseplate.

Product Identification

CI853K01 Communication Interface

The ABB CI853K01 provides a serial communication interface for AC 800M control
architectures. Its dual-channel design allows serial devices and communication
networks to be connected to the automation system through RS232-C interfaces.

Serial communication remains important in many industrial installations because
process instruments, controllers, analyzers, drives, meters, and legacy automation
equipment may use serial protocols for data exchange. A dedicated communication
interface allows these devices to participate in the overall control architecture
without requiring the main controller to directly handle every physical interface.

Communication Functions

The CI853K01 is associated with serial communication functions including COMLI and
Modbus RTU. ABB documentation identifies the CI853K01 as a Dual RS232-C Interface,
while ABB technical documentation lists two communication channels for the CI853.

• Dual RS232-C serial communication interface.
• Two communication channels.
• Support for COMLI communication.
• Support for Modbus RTU communication.
• Designed for ABB AC 800M automation architectures.
• Integration through the AC 800M communication interface structure.

AC 800M System Integration

ABB AC 800M is a modular controller platform used in distributed industrial
automation applications. Communication interfaces such as the CI853K01 extend
the controller architecture by providing interfaces for external communication
equipment.

The CI853K01 is installed as part of the AC 800M hardware configuration. The
associated TP853 baseplate provides the physical mounting and system connection
arrangement for the communication interface.

When configuring an AC 800M system, the communication interface should be considered
together with the controller, communication architecture, connected devices,
software configuration, and selected serial protocol. Correct system configuration
is necessary to establish reliable communication between the controller and
external equipment.

RS232-C Serial Communication

RS232-C is a widely used serial communication standard for point-to-point
communication. In industrial automation, it can be used to exchange information
between controllers and external devices such as instruments, computers,
communication converters, and other serial equipment.

The dual-channel arrangement of the CI853K01 provides two serial communication
paths within the same communication interface. This can simplify system architecture
where multiple serial devices need to communicate with an AC 800M controller.

Modbus RTU Applications

Modbus RTU is commonly used in industrial automation for exchanging registers,
status information, measurements, and control data. The CI853K01 can be used for
Modbus RTU communication within supported AC 800M system configurations.

Before integrating a Modbus device, the communication parameters and protocol
configuration should be checked. Typical considerations include device addressing,
communication speed, data format, serial parameters, register mapping, and the
master or slave role of the connected equipment.

COMLI Communication

COMLI is a serial communication protocol associated with ABB automation systems.
The CI853K01 supports COMLI communication as part of its communication interface
functionality.

COMLI-based installations may require careful configuration of the connected
equipment and controller communication parameters. When replacing or configuring
a CI853K01, existing system documentation should be reviewed so that the
communication architecture is maintained correctly.

Technical Specifications

Installation and Configuration Considerations

Before installing a CI853K01 communication interface, the system configuration
should be checked against the existing AC 800M installation. The part number,
type designation, controller configuration, and associated baseplate should all
be verified.

Communication parameters should also be reviewed before the system is placed
into operation. Incorrect serial settings can prevent communication even when
the physical installation is correct.

Recommended Checks

• Confirm the complete ABB part number.
• Verify the CI853K01 type designation.
• Check the AC 800M hardware configuration.
• Confirm the TP853 baseplate arrangement.
• Identify the communication protocol used by the connected equipment.
• Check serial communication parameters.
• Verify controller configuration before commissioning.

Maintenance and Troubleshooting

Communication interface problems can appear as loss of communication, intermittent
data exchange, incorrect values, or failure of an external device to respond.
Troubleshooting should begin with physical connections and then proceed through
communication configuration and controller diagnostics.

When investigating a CI853K01 installation, maintenance personnel should check
the module identification, baseplate connection, communication cabling, connected
device status, protocol configuration, and controller software configuration.

If communication is available on one channel but not another, the two serial
channels should be checked separately. This approach can help determine whether
the issue is related to the external device, communication cable, configuration,
or the interface channel itself.

Spare Part Identification

ABB automation systems may contain components with similar physical appearances
but different communication functions or system compatibility. For this reason,
the complete part number should be used when identifying a CI853K01 replacement
component.

The designation 3BSE018103R1 is the ABB product number shown in current ABB
documentation, while the user-supplied designation 3BSE018103R0001 may appear
in equipment and spare-part records. The CI853K01 type designation is an important
additional reference when confirming the required component.

Applications

The CI853K01 can be applied in industrial automation installations where an
ABB AC 800M controller needs serial communication with external equipment.
Typical application environments can include process automation, plant control,
industrial monitoring, equipment integration, and systems containing serial
communication devices.

Its dual RS232-C architecture makes the interface suitable for configurations
requiring more than one serial communication channel. The actual application
should always be matched with the installed AC 800M system configuration and
supported communication protocol.

Technical Summary