Key Product Data
CI871A
3BSE092693R1
ABB AC 800M Communication Interface
PROFINET IO
Master
10/100 Mbit/s
No Line Redundancy
Module Redundancy
Hot Swap
HI Controller Compatible
12 Maximum Units on CEX-Bus
RJ-45 Female, 8-Pin
160 mA Typical 24 V Consumption
0 to +55°C Operating Temperature
-40 to +70°C Storage Temperature
5–95% Relative Humidity, Non-Condensing
2000 m Maximum Altitude
Pollution Degree 2
G3 Corrosion Protection
IP20
59 mm Width
185 mm Height
127.5 mm Depth
700 g Including Base
CE
UL 61010-1 / UL 61010-2-201
cULus Class 1, Zone 2
AEx nA IIC T4
ExnA IIC T4Gc X
ABS / BV / DNV / LR / CCS Marine Certificates
EU RoHS / UAE RoHS / CN RoHS
System 800xA 6.0.3.3, 6.1.1 and Subsequent Versions
Product Introduction
CI871A is an ABB AC 800M communication interface for connecting PROFINET IO devices to an AC 800M controller through an Ethernet network. ABB identifies 3BSE092693R1 as the article number for the CI871A PROFINET IO interface.
The interface operates as a PROFINET IO Master with 10/100 Mbit/s transmission speed. It supports module redundancy and hot swapping, while line redundancy is not provided. This makes CI871A suitable for AC 800M installations where PROFINET-based field-device communication is required.
ABB's AC 800M product documentation also lists CI871AK01 under article number 3BSE092693R1, with the package consisting of the CI871A communication interface and a TP867 baseplate.
PROFINET Communication
The primary communication function of CI871A is PROFINET IO connectivity. The interface connects PROFINET IO devices through Ethernet, with the AC 800M controller operating as the master.
The TP867 baseplate provides two RJ45 Ethernet connectors, but ABB specifies that CH1, supporting 100 Mbps, is the connector used for the PROFINET IO connection. The Ethernet cable is connected to the PROFINET IO network through an Ethernet switch.
This distinction is useful when identifying an installed unit because the physical presence of two Ethernet connectors does not mean both ports are used for the CI871A PROFINET IO connection.
AC 800M Integration
CI871A belongs to ABB's AC 800M family of communication interfaces. The family provides communication modules for Ethernet-based protocols, serial communication, ABB equipment and legacy systems. Within this group, CI871A is specifically associated with PROFINET IO, while nearby interface types serve protocols such as MODBUS TCP, IEC 61850 and EtherNet/IP.
The CI871 expansion unit contains the CEX-Bus logic, communication unit and DC/DC converter required to obtain the necessary operating voltage from the +24 V supply through the CEX-Bus. Up to 12 units can be installed on the CEX-Bus according to ABB's current hardware selector data.
Redundancy and Maintenance Features
CI871A supports module redundancy, allowing redundant communication-interface arrangements within supported AC 800M architectures. ABB also specifies hot-swap capability for the module. Line redundancy, however, is listed as not available for CI871A.
These characteristics are particularly relevant when identifying a replacement communication interface in an established AC 800M installation. The replacement should match the installed CI871A article number and the applicable System 800xA software environment rather than being selected solely by physical appearance or Ethernet connectivity.
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Software Compatibility
ABB specifies that CI871A works with System 800xA 6.0.3.3, 6.1.1 and subsequent versions. The AC 800M compact product catalog also lists compatibility with Compact Control Builder 6.0.0-3, 6.1.1 and subsequent versions for the CI871AK01 package.
For maintenance of an existing control system, these version requirements are important because communication interfaces within the AC 800M family are protocol-specific and their supported software environments can differ.
Physical and Environmental Characteristics
CI871A has a width of 59 mm, height of 185 mm and depth of 127.5 mm, with a stated weight of 700 g including the base. The module is rated IP20 and is specified for operation from 0 to +55°C. Storage conditions extend from -40 to +70°C.
ABB specifies 5–95% relative humidity without condensation, an installation altitude of up to 2000 m according to IEC/EN 61131-2, Pollution Degree 2 and G3 corrosion protection according to ISA 71.04.
Certification and Industrial Use
CI871A carries CE marking and electrical safety compliance with UL 61010-1 and UL 61010-2-201. ABB also lists hazardous-location certification including cULus Class 1, Zone 2, AEx nA IIC T4 and ExnA IIC T4Gc X. Marine certificates listed by ABB include ABS, BV, DNV, LR and CCS.
The combination of PROFINET IO communication, redundant-module capability, hot swapping and industrial environmental certifications makes CI871A a dedicated communication component within the AC 800M automation platform rather than a general-purpose Ethernet interface.
Product Identification
The principal identifiers associated with this product are:
- CI871A - communication interface type
- 3BSE092693R1 - ABB article number
- CI871AK01 - ABB package designation for the CI871A interface with TP867 baseplate
ABB's AC 800M catalog specifically maps CI871AK01 to article number 3BSE092693R1 and states that the package includes the CI871A communication interface and TP867 baseplate.
For spare-part identification, 3BSE092693R1 should therefore be retained as the primary ordering identifier, while CI871A identifies the communication interface itself.
Related AC 800M Communication Interfaces
ABB's AC 800M communication-interface family includes several protocol-specific modules. CI867A provides MODBUS TCP, CI868A provides IEC 61850, CI869 is associated with ABB Advant Fieldbus 100, CI873A provides EtherNet/IP and DeviceNet, and CI874 provides an OPC UA Client interface. CI871A is the PROFINET IO member of this group.
This protocol distinction is important when selecting a replacement. A physically similar AC 800M communication module is not necessarily functionally interchangeable with CI871A.
Alternative Names
CI871A
CI871 A
CI871
CI871A Communication Interface
CI871A PROFINET IO Interface
CI871A PROFINET Interface
CI871A AC 800M Interface
CI871A AC 800M Communication Module
CI871A Ethernet Communication Interface
CI871A PROFINET Communication Module
3BSE092693R1
3BSE092693R1 Communication Interface
3BSE092693R1 PROFINET IO
3BSE092693R1 AC 800M
CI871AK01
CI871AK01 PROFINET IO Interface
CI871A TP867
AC 800M PROFINET Interface
AC 800M PROFINET Communication Module
Frequently Asked Questions
What is ABB CI871A?
CI871A is an AC 800M communication interface used to connect PROFINET IO devices to an ABB AC 800M controller through Ethernet.
What is the ABB article number for CI871A?
The ABB article number is 3BSE092693R1. ABB's compact product catalog identifies the packaged version as CI871AK01, including the CI871A interface and TP867 baseplate.
What communication protocol does CI871A use?
CI871A uses PROFINET IO and operates as a Master. The specified transmission speed is 10/100 Mbit/s.
Does CI871A support redundancy?
Yes. ABB specifies module redundancy for CI871A. Line redundancy is listed as not available.
Does CI871A support hot swapping?
Yes. ABB lists Hot Swap: Yes for CI871A.
How many CEX-Bus units can be connected?
ABB specifies a maximum of 12 units on the CEX-Bus for CI871A.
Which Ethernet port is used for PROFINET IO?
The TP867 baseplate has two RJ45 Ethernet connectors, but ABB specifies that CH1, which supports 100 Mbps, is used for the PROFINET IO connection.
What software versions support CI871A?
ABB states that CI871A works with System 800xA 6.0.3.3, 6.1.1 and subsequent versions.
What is the difference between CI871A and CI873A?
CI871A is the AC 800M interface for PROFINET IO, while CI873A is used for EtherNet/IP and DeviceNet. Both are Ethernet-based AC 800M communication interfaces, but they serve different protocols.
Procurement Reference
Model: CI871A
ABB Article Number: 3BSE092693R1
Package Designation: CI871AK01
Product Type: AC 800M Communication Interface
Protocol: PROFINET IO
Role: Master
Transmission Speed: 10/100 Mbit/s
Module Redundancy: Yes
Hot Swap: Yes
Connector: RJ-45 female, 8-pin
CEX-Bus Capacity: Up to 12 units
Protection: IP20
Weight: 700 g including base
Compatible Platform: ABB AC 800M / System 800xA
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