Tutto sui PLC: la CPU
A practical engineering guide to PLC CPU operation, from deterministic scan cycles and I/O image tables to memory, communications, diagnostics, redundancy, processor sizing, and reliable system...
The ABB SB822 is an external rail-mounted backup energy component engineered to preserve volatile application logic and database memory inside AC 800M controller configurations during main line power blackouts. Operating as a dedicated rechargeable battery unit, this hardware delivers a regulated 3.6 VDC output profile, sustaining critical execution states and preventing data loss within distributed control system node processors.
The SB822 assembly contains a specialized lithium-ion cell core complete with an integrated charging interface, a local 24 VDC connection block, and a dedicated TK821V020 system interface cable link. Cataloged under product ID 3BSE018172R1, this smart auxiliary backup source coordinates with System 800xA and Compact Product Suite power modules to manage memory hold-up sequences across manufacturing execution networks without risking logic degradation.
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Model Designation | SB822 |
| Product ID / Order Number | 3BSE018172R1 |
| Product Type | Power Supply / Battery Unit |
| Maximum Input Current (Iin) | 0.1 A |
| Output Voltage (Uout) | 3.6 V DC |
| Maximum Output Current (Iout) | 0.05 A |
| Lithium Content | 0.8 g (0.03 oz) |
| Included Interface Cable | TK821V020 |
| Country of Origin | China (CN) |
| Customs Tariff Number | 85389091 |
| Part Type Status | Original / New |
| Product Net Weight | 0.55 kg |
| Shipping Weight (Calculated) | 0.78 kg |
| Package Dimensions (Calculated) | 160 mm x 120 mm x 55 mm |
The SB822 backup block is backwards-compatible across multiple generations of AC 800M controller setups including versions 4.1 through 6.0. It functions as a direct component swap for older restricted battery configurations. When substituting an old unit, always use the fresh TK821V020 link cable included in the kit to verify proper current delivery parameters and eliminate structural connection decay at the module bus interface.
Deploying this lithium-based backup device inside non-ventilated electrical bays where surrounding parameters exceed normal operating ranges will accelerate internal cell degradation. This can lead to reduced hold-up duration limits or immediate premature block capacity failure. System diagnostics status bits should be mapped in the automation engineering software tool to actively track battery health state flags and trigger maintenance warnings well before cell exhaustion occurs.
During initialization, verify that the 24 VDC auxiliary supply lines are connected correctly to the charging block input port. Without this active current path, the internal lithium cell will not charge and will drain down rapidly under static system states. Keep the interface loop cable separated from close tracking alongside high-amperage variable speed drive outputs to shield the internal tracking lines from electromagnetic distortion vectors.
CRITICAL WARNING: DC AUXILIARY SUPPLY ISOLATION PROTOCOLS
Disconnect all active 24 VDC input feed paths powering the battery charging framework prior to component handling or interface cable installation. Working on live terminations poses localized short-circuit hazards that can corrupt adjacent processing circuits. Do not cut or alter the factory-assembled TK821V020 cable configuration.
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The ABB SB822 is an external rail-mounted backup energy component engineered to preserve volatile application logic and database memory inside AC 800M controller configurations during main line power blackouts. Operating as a dedicated rechargeable battery unit, this hardware delivers a regulated 3.6 VDC output profile, sustaining critical execution states and preventing data loss within distributed control system node processors.
The SB822 assembly contains a specialized lithium-ion cell core complete with an integrated charging interface, a local 24 VDC connection block, and a dedicated TK821V020 system interface cable link. Cataloged under product ID 3BSE018172R1, this smart auxiliary backup source coordinates with System 800xA and Compact Product Suite power modules to manage memory hold-up sequences across manufacturing execution networks without risking logic degradation.
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Model Designation | SB822 |
| Product ID / Order Number | 3BSE018172R1 |
| Product Type | Power Supply / Battery Unit |
| Maximum Input Current (Iin) | 0.1 A |
| Output Voltage (Uout) | 3.6 V DC |
| Maximum Output Current (Iout) | 0.05 A |
| Lithium Content | 0.8 g (0.03 oz) |
| Included Interface Cable | TK821V020 |
| Country of Origin | China (CN) |
| Customs Tariff Number | 85389091 |
| Part Type Status | Original / New |
| Product Net Weight | 0.55 kg |
| Shipping Weight (Calculated) | 0.78 kg |
| Package Dimensions (Calculated) | 160 mm x 120 mm x 55 mm |
The SB822 backup block is backwards-compatible across multiple generations of AC 800M controller setups including versions 4.1 through 6.0. It functions as a direct component swap for older restricted battery configurations. When substituting an old unit, always use the fresh TK821V020 link cable included in the kit to verify proper current delivery parameters and eliminate structural connection decay at the module bus interface.
Deploying this lithium-based backup device inside non-ventilated electrical bays where surrounding parameters exceed normal operating ranges will accelerate internal cell degradation. This can lead to reduced hold-up duration limits or immediate premature block capacity failure. System diagnostics status bits should be mapped in the automation engineering software tool to actively track battery health state flags and trigger maintenance warnings well before cell exhaustion occurs.
During initialization, verify that the 24 VDC auxiliary supply lines are connected correctly to the charging block input port. Without this active current path, the internal lithium cell will not charge and will drain down rapidly under static system states. Keep the interface loop cable separated from close tracking alongside high-amperage variable speed drive outputs to shield the internal tracking lines from electromagnetic distortion vectors.
CRITICAL WARNING: DC AUXILIARY SUPPLY ISOLATION PROTOCOLS
Disconnect all active 24 VDC input feed paths powering the battery charging framework prior to component handling or interface cable installation. Working on live terminations poses localized short-circuit hazards that can corrupt adjacent processing circuits. Do not cut or alter the factory-assembled TK821V020 cable configuration.
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 |
China
|