Overview
The ABB CI873A, also cataloged as the CI873A EtherNet/IP communication interface module, provides EtherNet/IP communication between an AC 800M controller and external Ethernet devices within the System 800xA environment. The unit integrates CEX-Bus logic, communication electronics, and a DC/DC converter powered through the CEX-Bus.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | CI873A |
| Article Number | 3BSE092695R1 |
| Brand | ABB |
| Product Type | EtherNet/IP Communication Interface Module |
| System | AC 800M / System 800xA |
| Communication Protocol | EtherNet/IP / DeviceNet |
| Master or Slave | Master |
| Transmission Speed | 10/100 Mbit/s |
| Ethernet Connector | RJ-45 female, 8-pin |
| Ethernet Port Usage | TP867 CH1, 100 Mbps supported |
| Line Redundancy | No |
| Module Redundancy | Yes |
| Redundant CI873A Pairs | Up to 6 pairs from System 800xA 5.1 FP4 |
| Hot Swap | Yes |
| CEX-Bus Capacity | Maximum 12 units |
| HI Controller Support | Yes |
| Typical 24 V Consumption | 160 mA |
| Operating Temperature | 0 to +55 deg C |
| Storage Temperature | -40 to +70 deg C |
| Relative Humidity | 5 to 95 %, non-condensing |
| Maximum Altitude | 2000 m according to IEC/EN 61131-2 |
| Pollution Degree | Degree 2 according to IEC/EN 61131-2 |
| Corrosion Protection | G3 according to ISA 71.04 |
| Protection Class | IP20 according to EN 60529, IEC 529 |
| Electrical Safety | UL 61010-1, UL 61010-2-201 |
| Hazardous Location | UL 60079-15, cULus Class 1, Zone 2, AEx nA IIC T4, Ex nA IIC T4Gc X |
| Marine Certificates | DNV-GL; ABS, BV and LR pending |
| CE Marking | Yes |
| RoHS Compliance | EU RoHS, UAE RoHS, CN RoHS |
| WEEE Compliance | Directive 2012/19/EU |
| Width | 59 mm |
| Height | 185 mm |
| Depth | 127.5 mm |
| Weight Including Base | 700 g |
ABB Industrial Network and CEX-Bus Features
The CI873A uses the CEX-Bus to interface its communication electronics with the AC 800M controller architecture. Internally, the expansion unit combines CEX-Bus logic, the communication unit, and a DC/DC converter.
The TP867 baseplate provides two RJ45 Ethernet connectors. However, the supplied technical data specifies CH1 as the connector used for the CI873A Ethernet connection and identifies 100 Mbps operation for this interface.
The module operates as an EtherNet/IP master and supports 10/100 Mbit/s transmission. Therefore, Ethernet device communication remains separate from the internal CEX-Bus interface.
Furthermore, CI873A supports module redundancy and hot swap operation. The supplied compatibility information specifies support for six redundant CI873A pairs from System 800xA 5.1 FP4.
System compatibility also requires attention. The CI873A operates with System 800xA 6.0.3.3, 6.1.1, and subsequent supported versions according to the supplied data.
Frequently Asked Questions (FAQ)
Q: Which Ethernet connector does the CI873A use on the TP867 baseplate?
A: The TP867 provides two RJ45 connectors, while CH1 is the specified connector used for the CI873A Ethernet interface.
Q: Does the CI873A support module redundancy?
A: Yes. The CI873A supports module redundancy, with the supplied data specifying up to six redundant CI873A pairs from System 800xA 5.1 FP4.
Q: What is the typical 24 V power consumption?
A: The typical 24 V consumption is 160 mA. The CI873A receives the required voltage through the CEX-Bus from the +24 V supply.
Field Installation Guidelines
- Install the CI873A on the specified TP867 baseplate and verify correct mechanical engagement before energizing the system.
- Connect the Ethernet cable to the specified CH1 RJ45 interface.
- Route Ethernet communication cables separately from high-voltage power wiring where practical to reduce electromagnetic interference.
- Maintain proper cable shielding and grounding practices according to the System 800xA installation requirements.
- Verify the +24 V supply and CEX-Bus connection before commissioning the communication interface.
- Confirm the installed System 800xA version against the CI873A compatibility requirements before configuration.
- For redundant installations, verify the intended CI873A pair configuration and controller-side redundancy settings before placing the system into operation.
- Do not exceed the stated maximum of 12 units on the CEX-Bus.
- Observe the IP20 enclosure rating when selecting the installation environment. Additional enclosure protection may be required for exposed field installations.
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