1769-ASCII Allen-Bradley CompactLogix Dual Serial Interface

Availability: 99 left in stock

Product Overview The Allen-Bradley 1769-ASCII functions as a dedicated specialty communication processor for CompactLogix and MicroLogix 1500 control systems. It provides two...

SKU: 1769-ASCII

Manufacturer: Allen Bradley
Product No.: 1769-ASCII
Product Type: Serial Communication Modules
Product Origin: USA
Payment:T/T, Western Union
Weight: 300g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Product Overview

The Allen-Bradley 1769-ASCII functions as a dedicated specialty communication processor for CompactLogix and MicroLogix 1500 control systems. It provides two fully independent, isolated serial channels that bridge the gap between your PLC and peripheral ASCII devices. By executing complex string manipulation and buffering locally on the module, the 1769-ASCII frees up critical CPU cycles, maintaining fast controller scan times. We supply this module as 100% Brand New and Original factory-sealed equipment.

Technical Specifications

The 1769-ASCII utilizes high-speed internal circuitry to manage asynchronous data streams without compromising backplane stability.

Specification	Details
Channels	2 Independent Isolated Serial Ports
Connector Type	Dual DB-9 Male
Baud Rates	110 bps to 38.4k bps
Protocol Support	Generic ASCII (Full/Half-Duplex)
Backplane Current	425 mA @ 5.1V DC
Isolation Voltage	30V continuous (Channel-to-Bus)
Flow Control	RTS/CTS Hardware Handshaking
Power Dissipation	2.13 Watts Max
Operating Temp	0 to 60 °C (32 to 140 °F)
Dimensions	34 x 118 x 87 mm

Engineering Advantages

Optimized CPU Performance: The module offloads all string parsing and FIFO buffering. This architecture prevents "jitter" in your control logic caused by intensive serial data processing.
Superior Noise Immunity: 710V DC dielectric isolation between the serial channels and the system backplane protects your CompactLogix rack from ground loops and field-side electrical surges.
Hardware-Level Flow Control: Integrated RTS/CTS handshaking prevents data loss during high-speed transmissions with industrial printers or vision systems.
Flexible Distance Rating: The module supports a 4-slot distance rating from the power supply, offering significant layout flexibility in dense control cabinets.

FAQs

What peripheral devices does the 1769-ASCII typically support?

It interfaces seamlessly with barcode readers, electronic weigh scales, RFID scanners, industrial inkjet printers, and most vision system controllers using standard ASCII strings.
Can I use both channels for different baud rates simultaneously?

Yes. Each channel operates independently. You can configure Port 1 for a 9600 bps barcode scanner while Port 2 manages a 38.4k bps printer link.
Does this module require external power?

No. The 1769-ASCII draws its operating power directly from the CompactLogix backplane. Ensure your power supply budget accounts for the 425 mA current draw.
Is this a current-generation product?

Yes, we provide the 1769-ASCII in 100% Brand New condition, fully compatible with current Studio 5000 and RSLogix 500 programming environments.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.