Allen Bradley 1769-ASCII Compact I/O Serial Gateway Module

The AB 1769-ASCII module provides seamless ASCII communication for CompactLogix and MicroLogix 1500 systems. This serial gateway module supports two full-duplex channels configurable as RS-232, RS-422, or RS-485, enabling integration with barcode readers, weigh scales, sensors, and serial-based devices.

Ideal for message-based communication up to 200 characters, the 1769-ASCII simplifies serial data exchange in automation environments where Ethernet or fieldbus protocols are not feasible. Its compact 35 mm width and DIN-rail mount form factor make it an easy addition to any Compact I/O system.

Technical Specifications

Model: 1769ASCII
Series: Compact I/O
Function: ASCII Serial Communication Module
Communication Channels: 2
Supported Serial Standards: RS-232, RS-422, RS-485
Application: Barcode scanners, scales, printers, serial sensors
Max Message Length: 200 characters

Electrical Specifications

Supply Voltage: Supplied from 1769 I/O bus
Channel Isolation: Channel-to-channel and channel-to-system isolation
Baud Rates Supported: Configurable (typically 300 to 115200 baud)
Parity Settings: None, Even, Odd
Stop Bits: Configurable (1 or 2)
Flow Control: Software (XON/XOFF) and hardware (RTS/CTS) supported

Communication & Protocols

Serial Protocols: ASCII (transparent)
Supported Protocols:

• RS-232
• RS-422
• RS-485
  Unsupported Protocols: EtherNet/IP, Modbus, TCP/IP, DeviceNet, PROFIBUS, Data Highway

Mechanical Specifications

Width: 35 mm
Height: 118 mm
Depth: 87 mm
Mounting Type: DIN rail or panel mount (with base unit)
Housing Style: Compact modular
Redundancy: Not supported

Environmental Specifications

Operating Temperature: 0°C to 60°C
Storage Temperature: –40°C to 85°C
Humidity: 5% to 95% RH, non-condensing
IP Rating: IP20 (suitable for control cabinet installation)
Explosion Safety (Gas/Dust): Not applicable

Compliance & Certifications

CE Marked: Yes
UL / cUL Listed: Yes
RoHS Compliant: Yes
Standards: IEC 61010, EN 61131-2

Key Features & Benefits

✅ 2 Fully Isolated Channels: Independently configurable as RS-232, RS-422, or RS-485.

✅ Compact Design: 35 mm wide – saves panel space in Compact I/O racks.

✅ Flexible Integration: Enables communication with non-Allen Bradley serial devices.

✅ 200-Character Messaging: Designed for ASCII command and data exchange.

✅ Easy Setup: Supports configuration via Logix Designer software.

📦 Order the Allen Bradley 1769-ASCII from Drive Outlet Megastore

At Drive Outlet Megastore, we offer unbeatable Allen Bradley 1769-ASCII prices. Add this versatile module to your CompactLogix or MicroLogix system and streamline serial communication in your automation workflow.

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Connect anything. Communicate everywhere. — Drive Outlet Megastore