Description
Product Overview
The ABB SM811K01 3BSE018173R1 is a safety CPU module kit for ABB AC 800M High Integrity control systems used with System 800xA. It provides safety-related supervision in conjunction with the PM865 controller, supporting the execution of safety functions within an appropriately engineered control architecture. ABB identifies the SM811 as a high-integrity module certified for SIL 3, with configuration and use governed by the applicable safety manual. It is not a standalone general-purpose PLC CPU and should not be treated as an independent safety system.
The SM811K01 kit includes three key items: the SM811 safety module, a TP868 baseplate, and a TK852V10 synchronization link cable. The assembly connects to the CEX-Bus after a BC810 CEX-Bus interconnection unit and works with the PM865 controller. ABB’s technical data lists an MPC862P processor operating at 96 MHz, 32 MB RAM, and a 24 VDC supply range of 19.2–30 VDC. These specifications describe the module’s hardware; actual safety behavior depends on approved hardware combinations, firmware, application configuration, and validation.
A major procurement consideration is lifecycle status. ABB states that the SM811K01 is not compliant with RoHS 2 Directive 2011/65/EU and may only be ordered for repair, reuse, functionality updates, or capacity upgrades of systems placed on the market before July 22, 2017. ABB directs users to SM812K01 (3BSE072270R1) for new installations. For an existing plant, confirm the installed PM865 and BC810 arrangement, kit contents, hardware revision, and safety-system engineering requirements before ordering.
Product Introduction
The SM811K01 is intended for existing ABB AC 800M High Integrity installations that require the corresponding safety CPU kit. It works alongside the PM865 controller and uses a synchronization link as part of the safety architecture. Its role is distinct from standard AC 800M processor modules, communication cards, and field I/O modules.
When sourcing a replacement, verify the complete order code and whether the package includes the TP868 baseplate and TK852V10 cable. Confirm the system’s firmware and engineering-software compatibility, and obtain clear photographs of the module and its identification label. For surplus or refurbished units, request condition disclosure and documented test results. After replacement, qualified safety-system personnel must perform the applicable configuration checks, validation, and proof testing before the affected safety function returns to service.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | SM811K01 |
| Order Number | 3BSE018173R1 |
| Manufacturer | ABB |
| Product Type | Safety CPU module kit |
| System Family | AC 800M High Integrity / System 800xA |
| Primary Companion CPU | PM865 |
| Safety Certification | ABB identifies the module as certified for SIL 3; application must follow the safety manual |
| Processor | MPC862P |
| Processor Clock | 96 MHz |
| RAM | 32 MB |
| Supply Voltage | 24 VDC |
| Permitted Supply Range | 19.2–30 VDC |
| Typical Power Consumption | 160 mA at 24 VDC |
| Maximum Power Consumption | 250 mA at 24 VDC |
| Typical Power Dissipation | 3.8 W |
| CEX-Bus Connection | Through BC810 CEX-Bus interconnection unit |
| Synchronization Interface | TK852V10 synchronization link cable |
| Included Components | SM811 safety module, TP868 baseplate, TK852V10 cable |
| Operating Temperature | +5°C to +55°C |
| Storage Temperature | −40°C to +70°C |
| Protection Rating | IP20, as listed in available product specifications |
| Lifecycle / Compliance | Not RoHS 2 compliant; restricted to qualifying legacy-system repair and upgrade use |
| Recommended New-Installation Alternative | SM812K01, 3BSE072270R1 |
Electrical and environmental values are based on ABB’s AC 800M controller documentation and the SM811K01 product listing. Confirm the applicable hardware revision and safety manual before using them as commissioning criteria.

SM811K01 3BSE018173R1
Related Products
These components belong to the same control-system family or are directly associated with the kit. They are not all interchangeable.
- PM865 / PM865K01 — 3BSE031151R1: Companion processor unit for the documented SM811 safety architecture.
- BC810 CEX-Bus interconnection unit: Provides the required CEX-Bus connection arrangement.
- TP868: Baseplate included in the kit.
- TK852V10: Synchronization link cable included in the kit.
- SM812K01 — 3BSE072270R1: ABB’s designated alternative for new installations; verify migration and application compatibility before use.
- SS823 — 3BSE038226R1: Voting device listed in ABB’s High Integrity system catalog.
Frequently Asked Questions
Q1: What is the ABB 3BSE018173R1 used for?
It is a safety CPU kit used with the controller in compatible ABB AC 800M High Integrity systems. It supports safety-related control functions within the approved system architecture.
Q2: What components are included in the kit?
ABB lists the SM811 safety module, TP868 baseplate, and TK852V10 synchronization link cable. Verify the contents of the actual item being supplied.
Q3: What is the power supply requirement?
The documented supply is 24 VDC, with a permitted range of 19.2–30 VDC. Confirm cabinet supply conditions and wiring against the applicable manual.
Q4: Is the SIL 3 certified?
ABB identifies the module as certified for SIL 3. That does not mean any installation automatically achieves SIL 3: the complete safety function must meet the applicable architectural, configuration, validation, and operating requirements.
Q5: Can the be replaced with SM812K01?
Not automatically. ABB recommends SM812K01 for new installations, but an existing system requires a compatibility and migration assessment, including firmware, configuration, hardware interfaces, and safety validation.
Q6: Is the suitable for a new project?
ABB’s published product information restricts this non-RoHS 2-compliant part to qualifying repair, reuse, functionality updates, or capacity upgrades of systems placed on the market before July 22, 2017. New projects should evaluate the designated SM812K01 alternative.
Q7: What should be checked before purchasing a replacement?
Confirm the order code, installed and BC810 arrangement, hardware revision, kit contents, and applicable firmware. For used or refurbished equipment, request inspection and test records, then plan the required safety validation before returning the affected function to service.
Procurement Recommendation
For the ABB 3BSE018173R1, exact system compatibility and lifecycle restrictions are as important as physical condition. Confirm the /BC810 configuration, kit contents, and applicable safety documentation before placing an order. Because ABB restricts this part to qualifying legacy-system work, assess for new installations. Do not return a replaced safety CPU to service solely on the basis of a successful power-up; follow the approved safety validation and proof-testing procedures.
