Allen-Bradley 1771-SN Universal Remote I/O Communication Module
$123.00
$320.00
Description
Allen-Bradley 1771-SN Universal Remote I/O Communication Module
Configured for remote I/O data exchange in PLC-5 control systems, the Allen-Bradley 1771-SN (1771-SN Universal Remote I/O Communication Module) provides direct physical and data communication execution through the 1771 backplane interface. The module performs remote I/O scanning and block-transfer communication with PLC-5 processors.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1771-SN |
| Brand | Allen-Bradley |
| Origin | United States |
| Weight | 1.90 lbs |
| Dimensions | 1 slot 1771 chassis module |
| Power Consumption | 0.2 A typical backplane current at 5 VDC |
| Product Type | Communication Modules |
| Product Line | PLC-5 |
| Communication Protocol | Universal Remote I/O |
| Communication Operation | Scan I/O |
| PLC Processor Interface | Block-transfer communication with PLC-5 processor |
| Mounting | 1771 I/O chassis |
| Slot Requirement | 1 slot |
| Wiring Arm | 1771-WN |
| Typical AC Signal Delay On | 11 +/- 6 ms |
| Typical DC Signal Delay On | 3 +/- 2 ms |
| Typical AC Signal Delay Off | 29 +/- 8 ms |
| Typical DC Signal Delay Off | 30 +/- 7 ms |
PLC-5 Remote I/O Communication Characteristics
The 1771-SN operates as a PLC-5 communication interface module using the 1771 backplane bus for processor data exchange. The module performs remote I/O scanning functions and transfers input and output data between distributed field devices and the PLC-5 processor.
The communication architecture supports deterministic remote I/O execution through Universal Remote I/O protocol. The module exchanges control data using block-transfer instructions with the PLC-5 processor, allowing structured transfer of remote device information.
The module is designed for PLC-5 I/O density scaling by adding remote signal handling capacity without direct expansion of local chassis wiring. Firmware compatibility and system configuration must match the installed PLC-5 processor and remote I/O network requirements.
Frequently Asked Questions
Q: What communication protocol does the 1771-SN support?
A: The 1771-SN uses Universal Remote I/O protocol for remote I/O communication within PLC-5 systems.
Q: How much backplane current does the 1771-SN require?
A: The module requires approximately 0.2 A of backplane current at 5 VDC.
Q: What type of PLC-5 processor communication is supported?
A: The module communicates with PLC-5 processors through block-transfer operations.
Field Installation Guidelines
Install the 1771-SN in a compatible 1771 I/O chassis slot and verify available backplane power capacity before system operation. Use the specified 1771-WN wiring arm for field connections.
Route remote I/O communication wiring separately from high-current power conductors to minimize electrical interference. Use appropriate shield grounding practices according to cabinet grounding design and network installation requirements.
Verify remote I/O addressing, processor configuration, and communication parameters before enabling system control. Confirm wiring polarity and terminal connections during commissioning.
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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