Description
Product Name: 1771-OFE1K Allen Braley I/O module
Product details:
The 1771-OFE1K provides four isolated analog output channels. It converts digital data from the PLC processor into proportional analog voltage or current signals to control field devices such as valves, motor drives, and pressure regulators.
2. Technical Specifications
| Feature | Specification |
| Number of Outputs | 4 isolated channels |
| Output Ranges | 0 to 10V DC, -10 to +10V DC, 4 to 20mA, 0 to 20mA |
| Resolution | 12-bit binary |
| Isolation | Channel-to-channel and channel-to-backplane (1500V AC) |
| Backplane Current | 1.5A @ 5V DC (Maximum) |
| External Power | Not required (powered via backplane) |
| Conformal Coating | Yes (indicated by the ‘K’ suffix) |
| Operating Temp | 0 to 60°C (32 to 140°F) |
3. Product Advantages
-
Environmental Resilience: The conformal coating protects internal circuitry from moisture, salt spray, and chemical contaminants, extending the lifespan in industrial settings.
-
High Isolation: Individual channel-to-channel isolation prevents ground loops and protects the PLC backplane from field-side electrical noise or surges.
-
Versatility: Supports both voltage and current signals, allowing a single module type to interface with a wide variety of actuators.
-
Proven Reliability: Part of the legacy 1771 platform, known for its rugged construction and long-term stability in critical infrastructure.
4. Key Considerations & Precautions
-
Chassis Compatibility: Ensure the 1771 chassis has adequate power supply capacity, as this module draws a significant 1.5A from the backplane.
-
Wiring: Use shielded twisted-pair cabling for all analog signals to minimize Electro-Magnetic Interference (EMI).
-
Calibration: While factory-calibrated, periodic software-based calibration may be necessary to maintain precision over years of use.
-
Electrostatic Discharge (ESD): Always wear a grounding wrist strap when handling the module to avoid damaging sensitive CMOS components.
5. Typical Applications
The 1771-OFE1K is widely used in industries requiring precise control in “dirty” or corrosive environments, such as:
-
Chemical Processing: Controlling proportional valves for acid/base neutralization.
-
Water Treatment: Managing pump speeds via Variable Frequency Drives (VFDs).
-
Oil & Gas: Regulating flow and pressure in offshore or coastal refineries.
-
Manufacturing: Controlling tension in paper mills or steel rolling applications.
Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!
We have the same series of models in stock. If you don’t find the model you need, please contact us and we will provide you with an official quotation!
Colour:new Warranty: 12 months
Lead Time:3-day working day Country of origin: Sweden
Price: Please contact us Product weight:0.515kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
The following are other related models. If you can’t find the product you need, please contact us. Thank you
| 440F-M0727DYNN | Allen‑Bradley |
| 440F-M0921DYNN | Allen‑Bradley |
| 440L-R4F0020-Q | Allen‑Bradley |
| 440L-R4F1570-Q | Allen‑Bradley |
| 440T-MDALE100B0C | Allen‑Bradley |
| 440T-MDALE100B0D | Allen‑Bradley |
| 440T-MDALE10AAAB | Allen‑Bradley |
| 440T-MDALE10ABAC | Allen‑Bradley |
| 440T-MDALE10ABAD | Allen‑Bradley |
| 440T-MDALE10APAR | Allen‑Bradley |
| 440T-MDALE10BABB | Allen‑Bradley |
JUSTWELL PTE. LTD. sells new and discontinued products, and purchases such specialty products through independent channels. JUSTWELL PTE. LTD. is not an authorized distributor, distributor, or representative of the featured products on this website. All product names/images, trademarks, brands, and logos used on this website are the property of their respective owners. Product descriptions, descriptions, or sales with these name images, trademarks, brands, and logos are for identification purposes only and do not imply any association or authorization with any rights holders.
This article is from the official website of JUSTWELL PTE. LTD. If reprinted, please attach this link:https://www.justwellcenter.com/
All other brand or product names mentioned in this document may be trademarks or registered trademarks of their respective holders.








