Allen-Bradley 1769-ASCII Communication Module

The Allen-Bradley 1769-ASCII module provides an efficient communication solution for CompactLogix and MicroLogix 1500 controllers. It allows reliable interaction with ASCII-compatible devices like barcode readers, which are crucial in industrial settings. This module includes two independent, isolated ASCII ports, providing flexibility and efficient data exchange in diverse industrial applications.

Key Features of the Module

Product Type: Specialty Communication Module
Product Line: CompactLogix
Manufacturer: Allen-Bradley
Part Number: 1769-ASCII
UPC: 612598314232
Module Type: Communication Interface Module
Ports: 2 full duplex (RS-232, RS-422), 2 half duplex (RS-485)
Handshaking: RTS/CTS Hardware Handshaking Enabled
Temperature Range: 0–60°C (32–140°F) Operating; -40 to 85°C (Storage)
Power Rating: 425mA @ 5V DC
Power Dissipation: 7.5 Watts
Thermal Dissipation: 7.3 BTU/hr
Input Voltage: 3-25V DC (Signal Ground)
Vibration Resistance: 5G at 10-500 Hz
Shock Resistance: 30G Operating, 50G Non-Operating

Technical Specifications

Specification	Value
Product Name	1769-ASCII
Power Supply Distance Rating	4 Modules
Backplane Current Draw	1.4 Amps @ 24V
Power Consumption	33.6 Watts
Bus Current (5V)	425mA
Number of Ports	2 (RS-232, RS-422, RS-485)
Isolation Voltage	30V Continuous
Maximum Voltage Test	710V DC for 60s
Operating Temperature	0–60°C (32–140°F)
Storage Temperature	-40 to 85°C
Humidity Range	5-95% (Non-condensing)
Weight	0.18 kg (0.40 lbs)
Dimensions (H x W x D)	87 x 34 x 118 mm

Easy Connectivity and Flexible Configuration

This 1769-ASCII module features two isolated ASCII ports, which support RS-232, RS-422, and RS-485 communication protocols. The ports can operate in both full-duplex and half-duplex modes, providing versatility to meet a wide range of industrial communication needs. Furthermore, RTS/CTS hardware handshaking ensures reliable and real-time data transfer.

Additionally, the module is designed to simplify configuration, allowing quick setup for various applications. Whether in CompactLogix or MicroLogix 1500 systems, the module integrates seamlessly into a variety of setups.

Installation and Power Requirements

The 1769-ASCII module connects directly to the backplane of the system, eliminating the need for an external power source. By being powered via the backplane, the module offers a simplified installation process. It can be installed in MicroLogix 1500 systems either beside the base unit or adjacent to other 1769 modules. Importantly, the module has a power supply distance rating of four modules, meaning it can be positioned up to four modules away from the CompactLogix Power Supply.

Environmental Durability and Performance

The 1769-ASCII module is engineered to perform reliably in demanding industrial environments. It operates within a temperature range of 0–60°C, ensuring consistent functionality across a variety of conditions. The module is also capable of handling humidity levels between 5% and 95%, as long as no condensation is present.

In addition, it can withstand shock up to 30G while operating, and 50G while not operating. It also tolerates vibration up to 5G at frequencies between 10 and 500 Hz. These robust environmental specifications ensure that the module can handle even the harshest conditions.

Module Compatibility and Industrial Applications

The 1769-ASCII module is compatible with CompactLogix and MicroLogix 1500 systems, providing an excellent solution for communication with various ASCII devices. It is particularly suited for applications that require efficient data exchange with devices like barcode readers and other similar technologies. As a result, this module serves as a versatile and dependable solution for industrial automation systems.