1SAP111100R0270: TB511-ETH base unit: AC500 V2 communication and mounting checks
The ABB TB511-ETH is a terminal base for the AC500 V2 platform. ABB describes one communication-module slot, an Ethernet interface and two RS232/RS485 interfaces. It is a base/connection unit rather than a complete PLC CPU, so a replacement plan must identify the compatible CPU and installed communication module.
Key technical data
| Technical item | Verified value / selection note |
|---|---|
| Type | TB511-ETH |
| Article number | 1SAP111100R0270 |
| Platform | ABB AC500 V2 |
| Module positions | One slot for a communication module |
| Ethernet | Integrated Ethernet interface |
| Serial interfaces | Two RS232/RS485 interfaces |
| Role | Controller terminal/base unit; confirm the CPU and add-on modules separately |
The table summarizes family or catalog values for identification and initial selection. Confirm the nameplate, environmental limits, standards, revision and options for the exact device before procurement or engineering approval.
Application and system selection
Use the base unit as part of an AC500 V2 controller assembly where the required Ethernet and serial connections match the automation design. Confirm protocol use on each serial port, network addressing, connector and cable requirements, module slot occupancy and the controller revision before ordering.
Configuration and compatibility
Do not confuse TB511-ETH with other terminal bases that may have similar appearance but different interface counts or module positions. Verify the complete part number, AC500 generation, CPU compatibility, firmware and project configuration. Check whether any adapter, terminal cover or communication module is part of the required assembly.
Related models and order-code references
The following designations are related catalog references, not automatic substitutes. Check each complete code, rating, connection, revision and application requirement before selecting a variant.
No additional same-series designation was identified for this representative model in the reviewed catalog rows.
Installation and commissioning
Power down the controller assembly and follow the product manual for removal and ESD handling. Label Ethernet and serial cables before disconnecting, then verify pinout, shielding and grounding on reassembly. Test link status, serial framing, controller diagnostics and communication with the supervisory system before restoring unattended operation.
Replacement and procurement information
For a quotation or replacement review, provide the complete designation 1SAP111100R0270, the order code where applicable, serial or hardware revision, quantity, operating environment, connected equipment and required delivery date. Include a legible nameplate image and relevant wiring, loop or switchgear drawing so the exact interface and configuration can be checked.
Ask the supplier to confirm accessories, revision compatibility and any approved successor in writing. Do not select solely from a family name or product photograph. Follow the current ABB installation and safety instructions for the exact unit.
