1769-L20 Allen-Bradley CompactLogix Processor Module
Manufacturer: Allen Bradley
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Part Number: 1769-BOOLEAN
Condition：New with Original Package
Product Type: Digital I/O Cards
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Allen-Bradley 1769-BOOLEAN CompactLogix Boolean Control Module
The Allen-Bradley 1769-BOOLEAN, also cataloged as the 1769-BOOLEAN Boolean Control Module, operates as a dedicated hardware component for discrete ON/OFF binary signal evaluation within CompactLogix 1769 platforms. The module executes physical logic mapping by switching channel states dynamically across the local processor backplane interface.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1769-BOOLEAN |
| Brand | Allen-Bradley |
| Origin | United States |
| Weight | 0.38 lbs (0.17 kg) |
| Dimensions | Standard 1769 Module Profile |
| Operating Temp | 0 to +60 deg C |
| Power Consumption | 33.6 W |
| Backplane Current Draw | 1.4 A @ 24 VDC |
| Power Dissipation | 7.5 W |
| Signal Type | Discrete ON/OFF (Boolean logic) |
| Nominal Field Voltages | 24 VDC / 85-265 VAC (Channel dependent) |
| Isolation Voltage | 30 V continuous (Backplane), 1500 V field-to-backplane breakdown protection |
| Enclosure Type | Open |
| System Software Compatibility | RSLogix 5000 / Studio 5000 Logix Designer |
| Certifications | CE, UL, CSA |
Deterministic Network Architecture
The digital execution circuitry provides I/O density scaling across modular channel blocks while maintaining the specified backplane bus communication velocity. High-speed logic transitions process directly through the internal ASIC layer to match firmware flash compatibility rules enforced by the controller group. The discrete hardware channels connect to the interface bus through an internal isolation barrier, ensuring that high-voltage spikes on the field terminal side do not compromise transmission parity on EtherNet/IP deterministic networks.
Frequently Asked Questions
Q: What are the consequences of exceeding the 1.4 A backplane current draw specification for the 1769-BOOLEAN module?
A: Exceeding the current specification overloads the local 1769 bus power supply rails, dropping the bus voltage below the minimum threshold. This induces a generic communication fault across the entire chassis bank and halts controller logic execution.
Q: Does this specific controller card support online replacement without isolating the electrical feed?
A: No. The 1769 hardware topology uses non-shrouded multi-pin interconnects that lack support for Removal and Insertion Under Power (RIUP). Separating the module while energized can lead to pins shorting and destroying the solid-state logic array.
Field Installation Guidelines
- Bus Connection Verification: Slide the module along the DIN rail until the side bus connector engages fully with the adjacent unit. Push the top and bottom locking levers inward until they click to complete the internal bus connection.
- Shielding and Separation Protocols: Route all discrete field wiring away from high-voltage AC cables and motor power leads. Utilize separate wire ducts to prevent electrical noise from causing false true/false state changes inside the Boolean register.
- Grounding Continuity: Clean the surface of the steel DIN rail prior to installation. The rear grounding clip must form a low-impedance electrical bond with the rail to ensure that surge voltages drain to the central enclosure ground bar.