Description
Product Overview
The ABB CI627A 3BSE017457R1 is a communication interface for ABB’s Advant Fieldbus 100 architecture. Its primary role is not general-purpose I/O processing; it functions as a stand-alone AF100 Bus Administrator Interface, providing the network-management function required for an AF100 bus installation. ABB documentation specifically identifies the CI627A with redundant twisted-pair connectors and an integrated modem, distinguishing it from the CI626A, which uses redundant coaxial connections.
Within an ABB legacy control installation, the ABB CI627A 3BSE017457R1 sits at the communication layer and manages the AF100 fieldbus connection rather than executing application logic. The integrated modem handles the electrical bus signaling, while the redundant physical interfaces support AF100 network configurations where communication availability is important. ABB’s AF100 documentation lists CI627A among the dedicated Bus Administrator equipment items, confirming its position in the network architecture.
The ABB CI627A 3BSE017457R1 is especially relevant when maintaining older Advant control systems where replacing the entire communication architecture would create unnecessary engineering and commissioning work. Its value is therefore tied to compatibility with an existing AF100 installation, not to generic Ethernet or PROFIBUS connectivity.
One procurement warning deserves emphasis. Several current secondary listings describe CI627A 3BSE017457R1 as a PROFIBUS DP-V1 module and publish specifications such as 12 Mbps, 244-byte I/O data, or AC 800M slot installation. Those claims conflict with ABB’s documentation, which identifies as an Bus Administrator with redundant twisted-pair connections. For a replacement project, use the installed system documentation and physical interface configuration as the final compatibility check.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | |
| ABB Part Number | 3BSE017457R1 |
| Manufacturer | ABB |
| Product Type | Communication Interface / Bus Administrator |
| Network | Advant Fieldbus 100 () |
| Bus Administrator | Stand-alone Bus Administrator Interface |
| Physical Medium | Twisted pair |
| Bus Connectors | Redundant twisted-pair connections |
| Integrated Modem | Yes |
| Network Redundancy | Supported through redundant bus connections |
| Primary Application | ABB Advant control-system communication |
| Installation Type | Stand-alone bus equipment |
| Protocol | Advant Fieldbus 100 |
| Coaxial Interface | No — is the twisted-pair variant |
| CI626A Relationship | CI626A is the corresponding coaxial Bus Administrator variant |
| Exact Power Rating | Verify against applicable ABB system documentation |
| Exact Temperature Rating | Verify against applicable hardware revision documentation |
| Firmware | System/configuration dependent |
| Condition | New Surplus, subject to inspection |
ABB’s manual directly identifies as the stand-alone Bus Administrator Interface with redundant twisted-pair connectors and integrated modem.
CI627A-3BSE017457R1
Related Products
- ABB CI626A — Bus Administrator using redundant coaxial connections and an integrated modem. It serves the same general network-management role as but uses a different physical medium.
- ABB CI627 — Earlier CI627 family hardware associated with communication. When replacing an older unit, confirm the complete ordering number and hardware revision rather than assuming CI627 and are identical.
- ABB CI630 — Related ABB communication-interface hardware used within the broader Advant/industrial control ecosystem. Its network role and physical interfaces differ, so it should not be treated as a direct substitute.
- ABB CI631 — Another communication-interface component found in ABB legacy control-system inventories. It may support related communication architecture but requires system-level compatibility verification.
- ABB CI670 — ABB communication interface associated with later control-system architectures. It can be relevant to migration planning but is not a direct drop-in replacement for an Bus Administrator.
- ABB Advant Fieldbus 100 () — The communication architecture for which is specifically designed. The network configuration determines whether or the coaxial CI626A architecture is appropriate.
- ABB with redundant coaxial connections — Appropriate where the existing installation uses coaxial media. The key difference is physical network medium rather than simply software configuration.
Frequently Asked Questions
1. What is ABB 3BSE017457R1 used for?
The 3BSE017457R1 is a stand-alone Bus Administrator Interface. It manages communication on an ABB Advant Fieldbus 100 network and incorporates an integrated modem with redundant twisted-pair bus connections.
It is therefore a communication-infrastructure component, not a conventional PLC CPU or digital I/O module.
2. Is a PROFIBUS DP-V1 module?
No. This is an important cataloging issue.
ABB’s own documentation identifies as an Bus Administrator with redundant twisted-pair connectors.
Some secondary product pages incorrectly describe 3BSE017457R1 as PROFIBUS DP-V1 hardware. For procurement and engineering documentation, the ABB classification should take precedence.
3. What is the difference between and ?
The principal distinction is the physical network medium:
- Redundant coaxial connections
- Redundant twisted-pair connections
Both are identified by ABB as stand-alone Bus Administrator interfaces with integrated modems.
This is a physical-network compatibility issue, not merely a software setting.
4. Can I hot-swap the ABB ?
Do not assume hot-swapping is permitted.
Because performs the Bus Administrator function, removing it can affect communication for multiple stations. Before replacement, determine whether the installed Advant system has a documented live-replacement procedure.
For a planned maintenance operation, the safer sequence is:
- Back up the current system configuration.
- Record the identification and revision.
- Confirm the redundant bus topology.
- Follow the applicable system shutdown/isolation procedure.
- Replace the hardware.
- Verify both paths and station communication.
5. Does support firmware v3.1?
There is no reliable public evidence tying firmware v3.1 specifically to every 3BSE017457R1 assembly.
For a legacy replacement, compare the existing hardware revision and system software requirements. Do not use a firmware number from a different ABB communication module as proof of compatibility.
6. Will replacing cause me to lose my control logic?
The is a communication interface, not the primary application controller where the control strategy is normally executed.
Still, before replacement, preserve:
- network configuration
- Station addresses
- Controller configuration
- Current diagnostics
- Communication parameters
- System backup files
The practical risk is usually loss of communication or configuration mismatch rather than deletion of the main control application.
7. What should I verify before purchasing a New Surplus 3BSE017457R1?
For this particular part, I would verify the following:
- Exact marking:
- ABB order number: 3BSE017457R1
- Twisted-pair interface
- Redundant bus connections
- Integrated modem
- Hardware revision
- Connector condition
- Power-up status
- Communication test
- Original system BOM or cabinet documentation
The most important check is the network medium. If the existing installation is coaxial , rather than may be the appropriate architecture. ABB explicitly differentiates the two in its documentation.
