Allen-Bradley 1771-OFE2/B Analog Output Module
$123.00
$320.00
Description
Allen-Bradley 1771-OFE2/B Analog Output Module
The Allen-Bradley 1771-OFE2/B (1771-OFE2 Analog Output Module) provides two-channel analog signal generation for PLC-5 I/O systems. The module converts controller digital data into ±10 VDC voltage outputs or 4-20 mA current outputs for direct connection to field devices such as actuators, control valves, and variable speed drives.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1771-OFE2/B |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 1.25 lbs |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | 4.5 W typical |
| Product Type | Analog Output Module |
| Series | PLC-5 1771 I/O Series |
| Output Channels | 2 analog outputs |
| Output Voltage Range | +/-10 VDC |
| Output Current Range | 4-20 mA |
| Resolution | 12-bit (1 part in 4096) |
| Accuracy | +/-0.1% of full scale |
| Settling Time | <2 ms to 0.1% of final value |
| Load Resistance (Voltage Mode) | >=1 kOhm |
| Load Resistance (Current Mode) | <=750 Ohm |
| Isolation | 1500 V AC rms tested |
| Backplane Current | Approximately 800 mA at 5 VDC |
| Wiring Arm | 1771-WG |
| Storage Temperature | -40 to 85 deg C |
| Relative Humidity | 5-95% non-condensing |
| Certifications | UL Listed, c-UL, CE compliant |
EtherNet/IP and PLC-5 I/O Signal Processing Characteristics
The 1771-OFE2/B operates as an analog output interface within the Allen-Bradley PLC-5 1771 I/O architecture. The module receives digital values through the backplane bus and converts them into proportional field output signals. Its dual-channel design supports independent voltage or current output configuration, allowing separate analog control loops within the same I/O chassis.
The module architecture supports industrial control requirements through isolated output circuitry and diagnostic indicators. Signal conversion resolution of 12-bit provides 4096 discrete output levels, while optical isolation separates field wiring from the PLC backplane interface to reduce electrical interference transfer.
Frequently Asked Questions
Q: What output signal types are supported by the 1771-OFE2/B module?
A: The module supports selectable analog voltage outputs of +/-10 VDC and current outputs of 4-20 mA for each channel.
Q: What PLC system is compatible with the 1771-OFE2/B?
A: The module is designed for installation in Allen-Bradley PLC-5 systems using the 1771 I/O platform.
Q: What are the backplane power requirements of this module?
A: The module requires approximately 800 mA from the 5 VDC backplane supply and has typical power dissipation of 4.5 W.
Field Installation Guidelines
Install the 1771-OFE2/B module in a compatible 1771 I/O chassis with the correct keying and slot configuration before applying power. Verify backplane power availability and confirm that the wiring arm is correctly installed for field connections.
Use shielded signal wiring for analog output circuits when installed in electrically noisy environments. Connect cable shields according to site grounding standards, avoiding ground loops between the module and field equipment. Separate analog signal cables from high-voltage power conductors and switching circuits to reduce induced noise.
Verify output mode configuration before connecting field devices. Confirm that voltage-mode loads meet resistance requirements and that current-loop devices are connected with appropriate loop resistance.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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