Implementing 3-Switch XOR Ladder Logic with Internal Bit
Implement a 3-SPST switch XOR light circuit in LogixPro or RSLogix 500 using an internal relay bit. Includes truth tables, boolean equations, and verified.
The ABB SNAT-22 SNATZ 22 AVPA 009 is a legacy control board used in ABB Stromberg drive systems.
The PCB is physically marked ABB STROMBERG DRIVES and SNATZ 22 AVPA 009. A socketed memory or program device on the board carries the identification SNAT-22 SCI 00B / 900314 RVKY.
The assembly combines logic processing, analog signal-conditioning components, terminal connections, and a multi-pin backplane connector. These features indicate a dedicated drive-control interface role within the original ABB Stromberg system architecture.
Because SNAT-22 is legacy hardware, replacement should be based on the complete board markings and installed system configuration. The SNATZ 22, AVPA 009, and SCI revision markings should be checked before substitution.
| Parameter | Specification |
|---|---|
| Manufacturer | ABB / Stromberg Drives |
| Board Designation | SNATZ 22 |
| Common Identification | SNAT-22 |
| PCB Marking | AVPA 009 |
| Product Type | Control Board |
| Program / SCI Marking | SNAT-22 SCI 00B |
| Program Identification | 900314 RVKY |
| Construction | Printed Circuit Board Assembly |
| Backplane Interface | Multi-pin card-edge / backplane connector |
| Field Connection | Screw terminal block |
| System Type | Legacy ABB Stromberg drive system |
| Marking | Observed Identification |
|---|---|
| PCB Manufacturer Marking | ABB STROMBERG DRIVES |
| Main PCB Marking | SNATZ 22 |
| Board Revision / Variant | AVPA 009 |
| Program Device | SNAT-22 SCI 00B |
| Program Code | 900314 RVKY |
These identifiers are visible directly on the supplied hardware and are more useful for exact replacement than the generic description “control board.”
The board contains a mixture of digital logic ICs, analog signal-conditioning components, discrete transistors, resistors, capacitors, and magnetic components.
A Siemens SAB 8031A-P microcontroller is visible on the PCB, together with additional logic devices and a socketed program memory device.
The design uses a large multi-pin system connector along one edge and a separate screw terminal block for external connections.
These details are specific to the photographed SNATZ 22 AVPA 009 assembly.
ABB legacy engineering documentation references SNAT 22 within Stromberg drive wiring and terminal diagrams. This supports its role as a dedicated board within an ABB drive control system rather than a standalone controller.
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The ABB SNAT-22 SNATZ 22 AVPA 009 is a legacy control board used in ABB Stromberg drive systems.
The PCB is physically marked ABB STROMBERG DRIVES and SNATZ 22 AVPA 009. A socketed memory or program device on the board carries the identification SNAT-22 SCI 00B / 900314 RVKY.
The assembly combines logic processing, analog signal-conditioning components, terminal connections, and a multi-pin backplane connector. These features indicate a dedicated drive-control interface role within the original ABB Stromberg system architecture.
Because SNAT-22 is legacy hardware, replacement should be based on the complete board markings and installed system configuration. The SNATZ 22, AVPA 009, and SCI revision markings should be checked before substitution.
| Parameter | Specification |
|---|---|
| Manufacturer | ABB / Stromberg Drives |
| Board Designation | SNATZ 22 |
| Common Identification | SNAT-22 |
| PCB Marking | AVPA 009 |
| Product Type | Control Board |
| Program / SCI Marking | SNAT-22 SCI 00B |
| Program Identification | 900314 RVKY |
| Construction | Printed Circuit Board Assembly |
| Backplane Interface | Multi-pin card-edge / backplane connector |
| Field Connection | Screw terminal block |
| System Type | Legacy ABB Stromberg drive system |
| Marking | Observed Identification |
|---|---|
| PCB Manufacturer Marking | ABB STROMBERG DRIVES |
| Main PCB Marking | SNATZ 22 |
| Board Revision / Variant | AVPA 009 |
| Program Device | SNAT-22 SCI 00B |
| Program Code | 900314 RVKY |
These identifiers are visible directly on the supplied hardware and are more useful for exact replacement than the generic description “control board.”
The board contains a mixture of digital logic ICs, analog signal-conditioning components, discrete transistors, resistors, capacitors, and magnetic components.
A Siemens SAB 8031A-P microcontroller is visible on the PCB, together with additional logic devices and a socketed program memory device.
The design uses a large multi-pin system connector along one edge and a separate screw terminal block for external connections.
These details are specific to the photographed SNATZ 22 AVPA 009 assembly.
ABB legacy engineering documentation references SNAT 22 within Stromberg drive wiring and terminal diagrams. This supports its role as a dedicated board within an ABB drive control system rather than a standalone controller.
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
United States
|