PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1771-OC is an 8-output Digital Output Module designed for the PLC-5 series platform. It operates within a voltage category of 10 to 60 Volts DC sourcing. The module delivers up to 1.5 Amperes continuous current per output channel. Total continuous output current reaches up to 8 Amperes per module. Backplane current consumption draws a maximum of 165 mA at 5 Volts DC logic power.
This module features conformal coating protection on internal circuit boards. The operating temperature range spans 0 to 60 degrees Celsius. Storage temperature limits extend from -40 to 85 degrees Celsius. Noncondensing relative humidity ratings span from 5 percent to 95 percent. The typical DC signal turn-off delay is 50 milliseconds. Dielectric test isolation withstands 1500 Volts AC for 60 seconds.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Category | PLCs |
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| Product Line | PLC 5 |
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| Weight | 1.25 lbs (0.57 kg) |
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| Module Type | Digital DC Output Module |
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| Number of Outputs | 8 Outputs |
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| Voltage Category | 10-60 Volts DC, Source |
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| DC Operating Voltage | 42-53 Volts |
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| Backplane Current | 165 Miliamperes |
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| Max Continuous Current Per Output | 1.5 Amperes |
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| Max Continuous Current Per Module | 8 Amperes |
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| Wiring Arm | 1771-WH |
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| Coating | Conformal Coat |
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| Data Format | BDC or Natural Binary |
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| Typical AC Signal Delay (Off) | 45 (+/- 15) ms |
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| Typical DC Signal Delay (Off) | 50 ms |
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| Model Status | Earlier Model |
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TECHNICAL INFORMATION
Features
- Provides eight sourcing DC outputs for PLC-5 system architecture.
- Delivers up to 1.5 Amperes continuous current on each output circuit.
- Supports a maximum continuous current load of 8 Amperes per module.
- Features conformal coating protection for circuit board assemblies.
- Withstands 1500 Volts AC dielectric isolation test voltage for 60 seconds.
- Operates with maximum backplane logic current draw of 165 mA.
TECHNICAL INFORMATION
Applications
- Sourcing discrete DC switching in PLC-5 I/O chassis installations.
- Industrial DC output driving requiring conformal coating protection.
TECHNICAL INFORMATION
Connections / Interfaces
- Connects using Allen-Bradley 1771-WH or 1771-WA field wiring arms.
- Directly interfaces with standard backplane connectors in 1771 I/O chassis.
TECHNICAL INFORMATION
Installation Guidelines
- Mount the module into any compatible slot in a 1771 I/O chassis.
- Do not insert the module into the leftmost chassis slot reserved for processors.
- Place chassis backplane keying bands between pins 4 and 6.
- Position additional keying bands between connector pins 20 and 22.
TECHNICAL INFORMATION
Configuration Guidelines
- Configure module addresses using the PLC-5 processor I/O rack assignment.
- Format discrete output data in BCD or natural binary structure.
TECHNICAL INFORMATION
Compatibility
- Allen-Bradley PLC-5 1771 I/O chassis.
- Allen-Bradley 1771-WH field wiring arm.
- Allen-Bradley 1771-WA field wiring arm.
TECHNICAL INFORMATION
Lifecycle / Replacement Information
- Classified as an earlier model within the legacy PLC-5 family.
TECHNICAL RESOURCES
Documentation
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSAllen-Bradley PLC-5 1771 I/O chassis. Allen-Bradley 1771-WH field wiring arm. Allen-Bradley 1771-WA field wiring arm.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What is the continuous current rating of the 1771-OC module?
The 1771-OC handles 1.5 Amperes per output and up to 8 Amperes continuous per module.
Where are keying bands positioned for the 1771-OC module?
Keying bands mount between pins 4 and 6, and between pins 20 and 22 on chassis connectors.
What is the reference price for the Allen-Bradley 1771-OC?
Refurbished units show an observed market reference price around $179.00 USD. This figure is an indicative market reference only and not a final quotation.
