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Description：

The 1771-A4B I/O chassis is engineered for robust performance within the PLC 5 system architecture. This configuration allows for a total of 16 slots, accommodating several modular components essential for your application. Notably, it can manage up to four I/O racks, employing 1/2-slot addressing for optimal space utilization. Installation of this chassis requires 36 keying bands made of plastic, ensuring secure setup.

Essential hardware components for installation include one cup washer, one star washer, four flat washers, and two #10 to 32 nuts with captive lock washers, all ensuring stability. This device allows for panel mounting and facilitates rear mounting, providing flexible installation options. Grounding is supported to enhance safety and performance.

Compatibility is versatile with various processors, particularly those rated between 2 and 4 amps that possess integral power supplies. Additionally, you can utilize power supply modules with ratings from 3 to 8 amps. External power supplies intended for this chassis must be rated between 6.5 and 16 amps. Furthermore, the leftmost slot is dedicated for processor module installation as well as the I/O adapter module. Communication modules and I/O modules can occupy any slot but are restricted from the leftmost slot, similar to power supply module installations. All these features combine to make the 1771-A4B an adaptable and essential component for performance-driven industrial setups.

Specification：

Frequently asked questions

What is the 1771-A4B?

It is a legacy 16-slot universal I/O chassis for the PLC-5 system, providing the physical housing and electronic backplane for processors and I/O modules.

How many I/O slots does the 1771-A4B have?

The 1771-A4B has 16 I/O slots.

What is the maximum backplane current rating of the 1771-A4B?

This 1771-A4B’s maximum backplane Current is 24 Amperes.

What is the supported mounting method of the 1771-A4B?

The 1771-A4B supports Panel mounting.

Product Applications

Oil and Gas: Centralized control and data acquisition for drilling platforms and refineries.

Iron and Steel Smelting: Supporting the stable operation of numerous I/O modules in high-temperature, high-dust environments.

Power Generation: Centralized automated control of peripheral auxiliary workshops such as coal conveying systems, ash removal systems, and water treatment systems in thermal or hydroelectric power plants.

Cement and Mining: Meeting the large-scale control needs of continuous heavy industry operations.

Shipbuilding: Meeting the robust hardware requirements of shipboard systems.

Features

16-slot chassis

Back-panel mounting

Compatible with 1771 series modules

Rugged industrial construction

Supports PLC-5 based systems