545-731

The Siemens 545-731 controller is a versatile and advanced programmable logic controller (PLC) designed for various automation applications. This particular model comes with an MBC (Modular Basic Control) memory MB (Modular Bus) expansion, and an FNob (Function Block Nob) expansion.

The MBC memory expansion provides an additional 128 input and 128 output points to the basic controller, making it ideal for larger and more complex automation projects. The Modular Bus technology enables easy communication between different Siemens controllers and I/O devices, ensuring seamless integration within your system.

The MB Ram expansion offers an increased memory capacity, allowing users to implement more complex control algorithms and larger programs. With the additional memory, users can also store more data and variables, making it suitable for applications requiring extensive data handling.

The FNob expansion is an essential component for users looking to implement function blocks in their automation projects. Function blocks are pre-engineered logical functions, which can be easily integrated into the controller's logic without the need for extensive programming. The FNob expansion offers a wide range of function blocks, making it suitable for various automation applications across different industries.

The Siemens 545-731 controller is renowned for its high performance, reliability, and ease of use. It features a user-friendly TIA Portal programming software, which allows users to visualize their control logic, troubleshoot errors, and optimize their system efficiently. The controller also supports various communication protocols, including PROFIBUS, PROFINET, and EtherNet/IP, making it a flexible choice for diverse automation applications.

In summary, the Siemens 545-731 controller with MBC memory, MB Ram, and FNob expansion is a robust and versatile solution for automation projects requiring additional I/O points, increased memory capacity, and a wide range of function blocks. Its advanced features, combined with the ease of use and flexibility offered by the TIA Portal programming software, make it an excellent choice for various industries and applications.

Siemens S5-150 PLC, specifically model 545-731 with MBC memory, Mb Ram, FNob (Function Blocks) is a versatile and powerful automation controller. Here are the pros and cons of buying this PLC:

1. Flexibility: Siemens S5-150 PLC with MBC memory, Mb Ram, and FNob offers a high degree of flexibility in programming and application deployment. With its support for function blocks and large memory capacity, it can handle complex automation tasks.

2. Reliability: Siemens is a well-known brand in the automation industry, and the S5-150 PLC is renowned for its reliability and robustness. Its modular design ensures easy maintenance and replacement of components.

3. Scalability: The S5-150 PLC is highly scalable, making it suitable for various applications, from small to large-scale automation projects. Its modular design allows for easy expansion and integration with other systems.

4. Easy to Use: The Siemens S5-150 PLC software is user-friendly, making it easy for operators and engineers to program and maintain the system. It also offers a wide range of input and output modules, making it suitable for various applications.

1. Cost: The Siemens S5-150 PLC with MBC memory, Mb Ram, and FNob is more expensive compared to other PLCs in the market. Its high memory capacity and advanced features come at a premium price.

2. Complexity: The Siemens S5-150 PLC offers a high degree of flexibility and advanced features, which can be overwhelming for beginners or small-scale automation projects.

3. Limited Communication Protocols: The Siemens S5-150 PLC supports a limited number of communication protocols compared to modern PLCs, which can make integration with other systems more challenging.

The Siemens S5-150 PLC, model 545-731 with MBC memory, Mb Ram, and FNob, is a powerful and versatile automation controller suitable for various applications, especially those requiring complex automation tasks and large memory capacity. Its reliability, scalability, and easy-to-use software make it a popular choice among automation professionals. However, its premium price, complexity, and limited communication protocols may not make it the best choice for small-scale projects or those with a limited budget.

If you are working on a complex automation project with a large memory requirement, the Siemens S5-150 PLC, model 545-731 with MBC memory, Mb Ram, and FNob, is a recommended choice due to its flexibility, reliability, and ease of use. However, if you are working on a small-scale project with a limited budget, you may consider other PLCs with similar features but a lower price point. It is also essential to ensure that the PLC you choose supports the required communication protocols for your application.

Details:

A new, unused item with no signs of wear. 2-year MRI shield protection plan included. The item has its original packaging but it is not sealed. Most items are in stock when they listed.

Special instructions. The product must be the original item shipped, with matching serial numbers if applicable. Manufacturer part number: 545-731.

specifications faclighting:

• brand: Siemens
• mpn: 545-731
• part type: Memory Controller

payments faclighting:

• credit card: discover
• wallet: apple-pay
• other

offer faclighting:

• availability: in stock
• started: october 24, 2025
• options: ship-to-home
• sold #: 13
• prices: $60.00–$1077.06
• item condition:
  • New – Open box
  • New
  • Used
• in stock #: 5
• best offers: true

shipping faclighting:

• service: ups ground, ups next day air
• transit: 4-7 days
• class: standard, one-day
• carrier: ups
• type: calculated

returns faclighting:

• time: 30 days
• method: money back
• paid by: buyer
• policy: returns accepted

general faclighting:

• category: Business & Industrial > Maintenance Safety > Facility > Lights Lighting

seller faclighting:

• city: mount sterling, kentucky
• rating: 99.1%
• # reviews: 16125

Grouped With:

• 549-003: CONTROLLER, Siemens
• R545731: MEMORY, Siemens
• 6SL3544-0FB21-1FA0: CONTROL, Siemens
• 3560012: BULB THERMOSTAT, Siemens
• 195-0011: RECEIVER CONTROLLER, Siemens
• 8WD5320-0CD: LAMP, Siemens