1791-16B0 Allen-Bradley 16-point DC Block I/O Module

Product parameters

Module type: DC Block I/O input module

Series: Allen-Bradley 1791 Block I/O Series

Input points: 16 DC inputs (divided into two groups, with 8 inputs in each group)

Input voltage:

Nominal: 24V DC

Working range: 10-30V DC (at 40°C) 10-25V DC (at 60°C)

Maximum input impedance: 3.4k Ohms

Input current:

Off state: Minimum 1.5mA (at 5V DC)

On state: 2 mA (10V DC) to 11 mA (30V DC)

Current load: 200 mA

Power supply: Built-in power supply, provided by the module

Environmental conditions:

Operating temperature: 0 to 60°C (32 to 140°F)

Storage temperature: -40 to 85°C (-40 to 185°F)

Relative humidity: 5-95% (non-condensing)

Enclosure protection grade: IEC IP20 (needs to be installed in a higher-level protective enclosure)

Installation method: Supports horizontal or vertical installation. It can be installed using DIN rails or panels

Terminal type: Detachable screw terminal, convenient for wiring and replacement

Status indication: The module is equipped with a status indicator light for fault diagnosis

Compatible controllers: Support Allen-Bradley's PLC-2, PLC-3, PLC-5/250, PLC-5 and SLC series programmable logic controllers (PLCS)

Function

Input signal processing

The module is capable of receiving the input signal of 24V DC and converting it into a digital signal available to the processor.

Supports a variety of discrete input devices, such as proximity switches, limit switches, selector switches, float switches and push-button switches.

Built-in power supply and interface:

It integrates power supply and PLC interfaces, simplifying system design and installation.

It provides complete I/O interface functions, equivalent to a combination of an I/O rack and an adapter.

Configurability: The switch components inside the module (located behind the front cover) are used to set the I/O rack number, final status, and final rack configuration, facilitating user-defined Settings.

Navigation and control can be carried out through the user interface of the programmable controller.

Fault Diagnosis:

It is equipped with status indicator lights for monitoring the operating status of the module, facilitating fault detection.

Built-in hardware watchdog function to detect microprocessor faults.

Wiring convenience: Equipped with a detachable terminal block, just loosen two fixing screws to replace or connect the cable, reducing wiring time.

Compact design: Suitable for space-constrained application scenarios, the module design is compact and suitable for distributed I/O systems.

Application scenarios

Machine control

It is used to monitor and control discrete signals in mechanical equipment, such as proximity switches to detect the position of parts, limit switches to monitor the travel of machinery, or push-button switches to trigger operations.

It is commonly found in packaging machines, conveying systems, assembly lines and other equipment.

Process control

It is applied in process automation systems, such as monitoring the status of liquid level switches (such as float switches) or valves.

It is suitable for industries such as chemical engineering, oil and gas, or water treatment.

Building automation: It is used in building management systems to monitor the status of switches and sensors, such as the status detection of access control systems or HVAC systems.

Distributed Control System (DCS) : As a distributed I/O module, it communicates with PLC or SLC controllers via the Remote I/O (RIO) protocol, making it suitable for scenarios in large factories or production lines that require decentralized control.

Highly compatible automation system: Compatible with a variety of Allen-Bradley PLCS (such as PLC-5, SLC), it is suitable for existing automation systems that require an expansion of input points.

Advantage Products:

All items are Distributor Ready-stock Genuine Brand-new Supplying, please inform us if the other conditions are needed, Used, Open-box, Refurbished, etc.

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