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  3. ALLEN BRADLEY 1777-LG

ALLEN-BRADLEY 1777-LG Ttl Module

1777-lg Allen-bradley Ttl Input Module

( Brand: Allen-bradley ), ( Manufacturer Part Number: 1777-LG ), ( Model: ALLEN BRADLEY 1777-LG TTL ), ( Part Type: Module )

Review ALLEN BRADLEY Ttl Input Module

Allen-Bradley 1777-LG TTL Module - High-Quality Digital I/O Solution

The Allen-Bradley 1777-LG TTL Module is a versatile and reliable component in the realm of digital I/O solutions, designed to seamlessly integrate with Allen-Bradley PLCs and ControlLogix systems. This module offers a robust and efficient means of communicating with external devices using TTL (Transistor-Transistor Logic) signals.

The Allen-Bradley 1777-LG TTL Module is a 16-point, bi-directional digital I/O module, providing 8 input and 8 output points. Each point is capable of handling TTL voltage levels (0V to 3.6V for inputs and 2.0V to 5.5V for outputs), ensuring compatibility with a wide variety of devices. The module is housed in a compact, DIN-rail mountable enclosure, making it ideal for space-constrained control panels.

The 1777-LG TTL Module features high-speed data transfer rates, ensuring quick and accurate response to changes in input signals. It also offers a high noise immunity, protecting against external interference that could potentially cause erroneous data readings. Additionally, the module's built-in diagnostics help to maintain system uptime by detecting and reporting fault conditions.

The Allen-Bradley 1777-LG TTL Module is an excellent choice for applications that require reliable and fast digital I/O communication, such as machine control, automation, and data acquisition systems. Its robust design, combined with Rockwell Automation's reputation for quality and reliability, makes it a trusted component in various industries, including manufacturing, automotive, and food and beverage.

In conclusion, the Allen-Bradley 1777-LG TTL Module is a high-quality, versatile, and compact digital I/O solution that offers fast data transfer rates, high noise immunity, and robust diagnostics. It is an ideal choice for integrating TTL devices with Allen-Bradley PLCs and ControlLogix systems, providing a reliable and efficient means of communication in a wide range of applications.

The Allen-Bradley 1777-LG TTL Module is a digital I/O module used for transmitting and receiving TTL (Transistor-Transistor Logic) signals. Here are some pros and cons to consider when deciding whether to purchase this module:

Pros:

1. Compatibility: The module is compatible with Rockwell Automation's ControlLogix and CompactLogix controllers, making it a reliable choice for users of these systems.

2. Versatility: The TTL module can handle a variety of digital I/O applications, including counting, sequencing, and interface with other devices.

3. Durability: Allen-Bradley products are known for their high quality and durability, ensuring long-term reliability in industrial environments.

4. Wide Operating Temperature: The module can operate in a wide temperature range (-40 C to 85 C), which is suitable for most industrial applications.

Cons:

1. Cost: Compared to other digital I/O solutions, the Allen-Bradley 1777-LG TTL Module can be relatively expensive.

2. Limited Signal Levels: TTL signals have specific voltage levels, which may not be suitable for all applications. For example, if you need to interface with devices that use RS-232 or RS-485 signals, you would need additional modules or converters.

3. Complex Configuration: The configuration of the TTL module requires a certain level of expertise in Rockwell Automation's software, which could be a barrier for less experienced users.

In conclusion, the Allen-Bradley 1777-LG TTL Module is a high-quality, versatile digital I/O solution suitable for a wide range of industrial applications. However, its cost and potential complexity in configuration could be drawbacks for some users. If you are a user of Rockwell Automation's ControlLogix or CompactLogix controllers and require TTL I/O functionality, this module could be a good choice. If you need a more cost-effective solution or require a different type of signal level, you may want to consider other options.

Details:

FOR YOUR CONSIDERATION: Allen Bradley 1777-LG TTL Input Module. Item is obsolete. The customer must know their part number and purchase accordingly. Location: NC Shelf 23 bin 13.

If it is included in this listing, its shown the photo. If we say the item works, then it was tested to best of our ability.

part #: 1777-lg price

  • $14.99

specifications sensoindustria:

  • brand: Allen-bradley
  • mpn: 1777-lg
  • model: Allen Bradley 1777-lg Ttl
  • part type: Module

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  • paid by: Buyer
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  • policy: Returns Accepted
  • time: 30 Days

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general sensoindustria:

  • condition: Used
  • PLCs HMIs > PLC Peripheral Modules > PLC Input Output Modules

offer sensoindustria:

  • started: December 17, 2025
  • quantity: 1
  • sold: 0
  • availability: In Stock
  • options: Ship-to-home

seller sensoindustria:

  • city: Rose City, Michigan
  • rating: 99.4%
  • # reviews: 47566

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  • service: Standard
  • class: Standard
  • type: Fixed
  • cost: $0.00
  • transit: 9-9 Days
part type: module,
category: business & industrial > plcs hmis > plc peripheral modules > plc input output modules, sku: 19581690463610782,
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