Allen-Bradley 1794-L33 FlexLogix Controller Module
The Allen-Bradley 1794-L33, also cataloged as the 1794-L33 FlexLogix Processor, operates as a dedicated hardware component for real-time logic execution and integrated I/O management within FLEX System networks.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1794-L33 |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 1.65 lbs (0.75 kg) |
| Dimensions | Standard FlexLogix controller profile |
| Operating Temp | Standard Allen-Bradley industrial operating range |
| Power Consumption | Standard 24 VDC backplane supply draw |
| Input Power | 24 VDC |
| User Memory | 64 Kbytes |
| Controller Type | Programmable Automation Controller / FlexLogix Processor |
| Mounting | DIN rail mountable |
Backplane Bus Communication Velocity and Deterministic Execution
The Allen-Bradley 1794-L33 integrates a dedicated Logix execution engine directly onto the FLEX I/O backplane bus, driving high-velocity communication across local expansion modules and remote network nodes. Utilizing 64 Kbytes of user memory for logic tasks, data arrays, and system configuration, the processor manages multi-tasking execution loops with deterministic timing. Native firmware flash compatibility ensures synchronized cyclic I/O updating, suppressing backplane latency across dense EtherNet/IP, ControlNet, and DeviceNet control topologies.
Frequently Asked Questions
Q: What power input is required to operate the 1794-L33 FlexLogix controller?
A: The processor operates directly on a 24 VDC control power supply wired to the local system power supply unit.
Q: How is user memory allocated on the 1794-L33 processor?
A: The 1794-L33 provides 64 Kbytes of battery-backed user memory designed to store application logic routines, tag databases, and system configuration profiles.
Field Installation Guidelines
- Mount the 1794-L33 processor onto the 35 mm DIN rail in the leftmost position of the FlexLogix rack assembly before connecting local I/O terminal bases.
- Connect the 24 VDC incoming power leads to the designated terminal connections using short, direct wiring to minimize voltage drop.
- Establish a low-impedance grounding path from the DIN rail and controller grounding lug directly to the central enclosure earth ground bus.
- Route high-speed communication trunks and field signal cables in separate wiring ducts away from AC power lines to avoid cross-talk and data corruption.
Allen-Bradley 1794-L33 FlexLogix Controller Module
Allen-Bradley 1794-L33 FlexLogix Controller Module
The Allen-Bradley 1794-L33, also cataloged as the 1794-L33 FlexLogix Processor, operates as a dedicated hardware component for real-time logic execution and integrated I/O management within FLEX System networks.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1794-L33 |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 1.65 lbs (0.75 kg) |
| Dimensions | Standard FlexLogix controller profile |
| Operating Temp | Standard Allen-Bradley industrial operating range |
| Power Consumption | Standard 24 VDC backplane supply draw |
| Input Power | 24 VDC |
| User Memory | 64 Kbytes |
| Controller Type | Programmable Automation Controller / FlexLogix Processor |
| Mounting | DIN rail mountable |
Backplane Bus Communication Velocity and Deterministic Execution
The Allen-Bradley 1794-L33 integrates a dedicated Logix execution engine directly onto the FLEX I/O backplane bus, driving high-velocity communication across local expansion modules and remote network nodes. Utilizing 64 Kbytes of user memory for logic tasks, data arrays, and system configuration, the processor manages multi-tasking execution loops with deterministic timing. Native firmware flash compatibility ensures synchronized cyclic I/O updating, suppressing backplane latency across dense EtherNet/IP, ControlNet, and DeviceNet control topologies.
Frequently Asked Questions
Q: What power input is required to operate the 1794-L33 FlexLogix controller?
A: The processor operates directly on a 24 VDC control power supply wired to the local system power supply unit.
Q: How is user memory allocated on the 1794-L33 processor?
A: The 1794-L33 provides 64 Kbytes of battery-backed user memory designed to store application logic routines, tag databases, and system configuration profiles.
Field Installation Guidelines
- Mount the 1794-L33 processor onto the 35 mm DIN rail in the leftmost position of the FlexLogix rack assembly before connecting local I/O terminal bases.
- Connect the 24 VDC incoming power leads to the designated terminal connections using short, direct wiring to minimize voltage drop.
- Establish a low-impedance grounding path from the DIN rail and controller grounding lug directly to the central enclosure earth ground bus.
- Route high-speed communication trunks and field signal cables in separate wiring ducts away from AC power lines to avoid cross-talk and data corruption.
