The ABB 086406-002 SIOC is a Smart I/O CALIP / Serial Input/Output Controller (SIOC) board used in ABB industrial control and drive-related systems. ABB references identify the exact catalog description as “PWA,SIOC, SMART I/O CALIP”, with a net weight of approximately 1.16 kg.
The SIOC provides an interface for handling I/O and control signals within the associated ABB system. Some industrial listings also identify the unit as a Serial Input/Output Controller, with related SIOC configurations including SIOC-1 through SIOC-8.
Main Function
The 086406-002 serves as a system-level I/O and interface board rather than a conventional standalone PLC CPU. It can manage signal exchange between the ABB control electronics and connected field/system components.
A typical architecture can be represented as:
ABB Control System → SIOC Board → I/O / Drive Interface → Field Equipment
The exact I/O assignment depends on the host ABB equipment and the installed SIOC configuration.
Product Datasheet
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Model | SIOC |
| Part Number | 086406-002 |
| Product Type | Smart I/O / Serial I/O Controller Board |
| ABB Description | PWA, SIOC, SMART I/O CALIP |
| Main Function | I/O Signal Processing & Interface |
| System Application | ABB Industrial Control / Drive Systems |
| SIOC Variants | SIOC-1 through SIOC-8* |
| Supply Voltage | 24 VDC* |
| Power Consumption | Approx. 3.4 W* |
| Net Weight | Approx. 1.16 kg |
| Gross Weight | Approx. 1.12 kg reported by one ABB reseller* |
| Dimensions | Approx. 430 × 140 × 48 mm |
| Installation | ABB System / Control Cabinet |
| Product Category | Industrial Spare Part |
| Country of Origin | US / China, configuration-dependent |
| Customs Code | 85340019 |
The ABB-related product record lists 430 × 140 × 48 mm and 1.16 kg net weight for 086406-002. Other reseller records associate 24 VDC / 3.4 W with the SIOC assembly, but those values should be verified against the specific system configuration.
Key Features
- ABB SIOC Smart I/O architecture
- Exact part number 086406-002
- Serial I/O controller functionality
- Smart I/O signal interface
- Designed for industrial automation equipment
- Suitable for legacy ABB system maintenance
- Related SIOC configurations available
- Suitable for replacement-spare applications
Typical Applications
- ABB industrial drive systems
- Machine-control systems
- Industrial I/O interfaces
- Process-control equipment
- Motor-control applications
- Factory automation
- Legacy ABB equipment maintenance
- Industrial control cabinets
Installation & Configuration
Before replacing the board, verify the exact 086406-002 marking and compare the hardware with the installed SIOC board.
Recommended procedure:
- Power down and isolate the associated ABB equipment.
- Record the existing SIOC board identification.
- Photograph all connectors and wiring.
- Verify the host-system model and SIOC configuration.
- Inspect the replacement PCB and connector contacts.
- Install the board in the original position.
- Reconnect all cables according to the original wiring.
- Verify the 24 VDC supply where applicable.
- Check system diagnostics.
- Confirm I/O communication.
- Test connected equipment under controlled conditions.
- Record the final configuration.
Compatibility Notes
There is some inconsistent third-party terminology around this part. ABB-related records describe 086406-002 as “PWA,SIOC, SMART I/O CALIP,” while reseller listings call it a Serial Input/Output Controller (SIOC).
ABB’s own spare-parts material also lists 086406-002 as “PWA, SIOC, SMART I/O CALIP”, supporting the board-level identification.
For replacement, match the exact part number, hardware revision, host ABB system, connector arrangement, and SIOC configuration. Do not assume that a different SIOC variant is plug-and-play compatible.
Product Identification
Brand: ABB
Model: SIOC
Part Number: 086406-002
Product Type: Smart I/O / Serial I/O Controller Board
ABB Description: PWA,SIOC, SMART I/O CALIP
Function: I/O Signal Processing & System Interface
Application: ABB Industrial Automation / Drive Systems
Weight: Approx. 1.16 kg
Dimensions: Approx. 430 × 140 × 48 mm
