Overview
The ABB 3BSE075853R1, also cataloged as the CI845 Ethernet FCI Module, provides Ethernet Fieldbus Communication Interface functions for connecting S800 I/O or Select I/O to an Ethernet network within ABB control systems.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | CI845 |
| Product ID | 3BSE075853R1 |
| Brand | ABB |
| Product Type | Ethernet Fieldbus Communication Interface Module |
| Supported I/O | S800 I/O, Select I/O |
| Network Interface | Ethernet |
| Communication Function | Fieldbus communication between I/O and Ethernet-based control system |
| Redundant Configuration | Supported |
| Redundant CI Modules | 2 x CI845 |
| Redundant Ethernet Adapters | 2 x TC810 |
| Redundant Baseplate Options | 1 x TU860 or 1 x TU865 |
| Select I/O High Integrity | SIL3 configuration supported with HI880 |
Ethernet Fieldbus and I/O Communication
The CI845 operates as an Ethernet Fieldbus Communication Interface for ABB S800 I/O and Select I/O. It transfers I/O communication between the connected fieldbus network and the associated ABB control architecture.
Furthermore, the CI845 supports redundant communication configurations. A redundant arrangement requires two CI845 modules, two TC810 Ethernet Adapters, and either a TU860 or TU865 baseplate arrangement.
For Select I/O High Integrity SIL3 applications, the configuration requires an HI880 unit. The supplied product information identifies this component as part of the required high-integrity architecture rather than as an integrated CI845 function.
The module therefore provides the Ethernet-side communication interface while the associated adapters, baseplates, and I/O hardware define the complete system configuration.
Frequently Asked Questions (FAQ)
Q: What I/O systems can the CI845 connect to?
A: The CI845 provides Ethernet Fieldbus Communication Interface functions for S800 I/O and Select I/O.
Q: Can the CI845 operate in a redundant configuration?
A: Yes. The specified redundant configuration uses two CI845 modules, two TC810 Ethernet Adapters, and one TU860 or one TU865.
Q: What additional hardware is specified for Select I/O High Integrity SIL3?
A: The supplied documentation specifies one HI880 for a Select I/O High Integrity SIL3 configuration.
Field Installation Guidelines
- Install the CI845 using the compatible ABB mounting and baseplate arrangement specified for the control system.
- Verify the selected TU860 or TU865 configuration before implementing CI845 redundancy.
- For redundant communication, install both CI845 interfaces and both TC810 Ethernet Adapters as specified.
- Route Ethernet communication cables separately from high-voltage power wiring where practical to reduce electromagnetic interference.
- Maintain appropriate cable shielding and grounding practices according to the applicable ABB installation documentation.
- Verify Ethernet connections, module addressing, and communication configuration before commissioning the connected I/O.
- For Select I/O High Integrity SIL3 installations, verify the HI880 hardware and the complete system architecture against the applicable safety-system documentation.
- Do not substitute baseplates, adapters, or communication interfaces without confirming system compatibility.
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