Model: 1769-OW8I
Product Overview
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Datasheet Preview
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Commercial Path
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Technical Dossier
The Allen-Bradley 1769 CompactLogix series is one of Rockwell Automation's most widely deployed modular PLC platforms across global heavy industry. Installed in chemical processing plants, petroleum refineries, nuclear auxiliary systems, water treatment facilities, and discrete manufacturing lines, the 1769 platform occupies a critical position in mid-range automation infrastructure. Its compact form factor, scalable I/O architecture, and native EtherNet/IP integration have made it the default control backbone for thousands of installations worldwide. The series supports both standalone and distributed control configurations, enabling engineers to design systems from simple machine control to complex process coordination without changing the hardware ecosystem. Long production runs and broad third-party support have cemented the 1769 series as a long-lifecycle platform with active spare parts demand well into the 2020s.
The 1769 series was introduced by Rockwell Automation as a successor to the SLC 500 and MicroLogix platforms, targeting applications requiring more processing power and network capability than those legacy systems could provide. Early 1769 controllers ran on ControlNet and DeviceNet backbones; subsequent revisions added native EtherNet/IP support, which became the dominant fieldbus for new installations after 2005. The architecture uses a local bus that allows up to 30 I/O modules per bank (hardware-dependent), with the controller occupying the leftmost slot. Power supplies are right-mounted and bank-specific, a design that simplifies field expansion. Firmware revisions across the series lifecycle introduced motion control integration, safety I/O compatibility, and enhanced diagnostics. As of 2024, several early controller SKUs (L20, L30, L40) have reached end-of-life status, while the L1, L2, L3, L16, L18, L24, L27, L33, L36, L43, L45, L61, L62, L63, and L65 remain in active production or extended support. The 5370 and 5380 CompactLogix families represent the current-generation successors, but the 1769 I/O module catalog remains compatible with newer controllers, extending the useful life of existing field wiring and panel designs.
Digital Output Modules
1769-OW8I: 8-point relay output, isolated, 240V AC/DC, Form A contacts — the subject of this listing. Designed for high-isolation switching of inductive and resistive loads in process control panels.
1769-OW8: 8-point relay output, non-isolated, 240V AC/DC, common return shared across all points.
1769-OA8: 8-point 120/240V AC triac output module, zero-cross switching, suited for resistive heating loads.
1769-OA16: 16-point 120V AC output, high-density triac, for large solenoid valve arrays.
1769-OB8: 8-point 24V DC sourcing output, standard discrete control for solenoids and pilot lights.
1769-OB16: 16-point 24V DC sourcing output, high-density panel wiring reduction.
1769-OB32: 32-point 24V DC sourcing output, maximum density for compact enclosures.
1769-OB16P: 16-point 24V DC sourcing output with individually protected outputs and diagnostic fault reporting.
Digital Input Modules
1769-IQ16: 16-point 24V DC sinking/sourcing input, standard field device interface.
1769-IQ32: 32-point 24V DC sinking/sourcing input, high-density field wiring.
1769-IA8I: 8-point 120V AC isolated input, one common per point, for legacy AC field devices.
1769-IA16: 16-point 120V AC input, shared common, standard AC field interface.
1769-IQ6XOW4: Combination module — 6 DC inputs + 4 relay outputs, space-saving for mixed I/O panels.
Analog I/O Modules
1769-IF4: 4-channel analog input, 4–20 mA / 0–10V, 12-bit resolution, for transmitter loops.
1769-IF8: 8-channel analog input, differential or single-ended, 16-bit resolution.
1769-OF4: 4-channel analog output, 4–20 mA / 0–10V, 12-bit, for control valve positioners.
1769-IF4XOF2: Combination — 4 analog inputs + 2 analog outputs, compact process loop control.
1769-IT6I: 6-channel thermocouple/mV input, isolated, supports J/K/T/E/R/S/B types.
1769-IR6: 6-channel RTD/resistance input, supports Pt100, Pt1000, Ni, Cu sensor types.
Communication & Specialty Modules
1769-SDN: DeviceNet scanner module, master node for legacy DeviceNet field device networks.
1769-ASCII: ASCII serial interface module, RS-232/RS-485, for barcode readers and serial instruments.
Continue The Model Path
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