1771-NOC Allen Bradley Analog Output Module
$123.00
$320.00
Description
Allen Bradley 1771-NOC N-Series Analog I/O Module
The Allen Bradley 1771-NOC, also cataloged as the 1771-NOC N-Series Analog I/O Module, operates as a dedicated hardware component for isolated current output processing within PLC-5 control systems. The module provides eight analog current outputs with BDC or Natural Binary data formatting and interfaces with 1771 chassis backplane communication.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1771-NOC |
| Brand | Allen Bradley |
| Origin | United States |
| Weight | 1.75 lbs |
| Power Consumption | Backplane current: 2.9 A at 20 mA/output; 3.3 A at 25 mA/output |
| Module Type | N-Series Analog I/O Module |
| Product Line | PLC-5 |
| Number of Inputs | 0 Inputs |
| Number of Outputs | 8 Current Outputs |
| Output Range | 0-25 mA |
| Output Resolution | 3.20 microamperes/bit |
| Output Data Format | BDC or Natural Binary |
| RTP Compatibility | Unfused 1771-RTP4; Fused 1771-RTP3 |
| Wiring Arm Compatibility | 1771-WH |
| Typical AC Signal Delay (Off) | 45 +/- 15 ms |
| Typical DC Signal Delay (Off) | 50 ms |
PLC-5 Analog Current Output Processing
The 1771-NOC module provides eight isolated analog current output channels for PLC-5 I/O chassis applications. Each output channel supports a 0-25 mA current range with high-resolution digital conversion. The module receives output data through the PLC-5 backplane bus and converts controller data into analog current signals.
The module supports BDC and Natural Binary data formats for compatibility with PLC-5 processor configurations. Output wiring is connected through the 1771-WH wiring arm with optional fused or unfused remote termination panel selections.
The 1771-NOC uses PLC-5 backplane communication for data transfer. Backplane current loading varies according to the connected output current level, requiring chassis power supply evaluation during system configuration.
Frequently Asked Questions
Q: How many analog output channels are available on the 1771-NOC module?
A: The 1771-NOC provides eight isolated current output channels with a 0-25 mA output range.
Q: Which data formats are supported by the 1771-NOC?
A: The module supports BDC and Natural Binary data formats for PLC-5 controller data exchange.
Q: What backplane current is required by the module?
A: The module requires 2.9 A backplane current at 20 mA per output and 3.3 A at 25 mA per output.
Field Installation Guidelines
Install the 1771-NOC module in a compatible PLC-5 1771 I/O chassis slot and verify chassis power capacity before commissioning. Confirm wiring arm compatibility with the 1771-WH connection system.
Use shielded analog signal wiring where required by the application environment. Connect cable shields according to site grounding practices to reduce electrical noise coupling. Separate analog current output wiring from high-voltage power conductors and high-frequency switching circuits.
Verify output polarity, termination configuration, and remote termination panel selection before applying system power. Check PLC-5 configuration parameters to ensure the selected data format matches the module operating mode.
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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