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attributes.Number_of_Inputs

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Omron CRT1 Series I/O Unit for Use with Componet, PNP

Omron I/O Unit for Use with CRT1 Series

Omron PLC Cable for Use with XW Series

Omron I/O Unit for Use with NX

Omron I/O Unit for Use with EtherCAT Coupler Unit, NX Series CPU Unit

Omron NX-TC Series Temperature Module, Pt100, Thermocouple

Omron I/O Unit for Use with NJ/NX/NY Series

Omron PLC Expansion Module for Use with CS1 Series


PLC accessories are devices and gadgets required for the optimum performance of a programmable logic controller. These accessories include interface splitter boxes, communication cassettes, and front connectors. The type of [PLC](https://sg.rs-online.com/web/c/automation-control-gear/plcs-hmis-industrial-computing/plcs-programmable-logic-controllers/) you're using will determine the accessories needed.

## **Types of PLC Accessories**

A programmable logic controller receives and transmits electronic signals in any kind of electrical system. Because of this flexibility in interfacing, there are a wide range of accessories that suit different controllers. 

As PLC's come in various sizes, the accessories needed depend on various factors such as the input/output requirements, cable length and range.

- **Cables and connectors:** Available in a wide range including [HMI Displays](https://sg.rs-online.com/web/c/automation-control-gear/plcs-hmis-industrial-computing/hmi-displays/), [USB Cables](https://sg.rs-online.com/web/c/cables-wires/computer-cables/usb-cables/) and [ethernet connectors](https://sg.rs-online.com/web/c/connectors/network-telecom-connectors/ethernet-connectors/) and cables.
- **Expansion modules:** The ideal solution for the acquisition and management of applications. They read and condition data from strain gauge load and communicate basic weight data back to the processor.
- **I/O modules:** One of the three core components that operate a PLC. I/O refers to input/output. PLC I/O modules act as messengers between a processor and an I/O device.
- **Power supplies:** Some [power supplies](https://sg.rs-online.com/web/c/power-supplies-transformers/power-supplies/) are embedded with switches for selecting a particular programming mode or protecting the memory. A low DC voltage output powers the various modules as well as the integral battery.
- **Programming software:** The collective term referring to the data and instructions provided to a PLC via various types of programming languages. These instructions are executed by the plug-in time switches (CPU) to operate, monitor and control machinery and equipment.
- **Training manuals:** These offer a clear, visual explanation of the system and processes.

## **Types of PLC Mounting Accessories**

There are several types of PLC mounting accessories like: 

- **DIN rail mounting kits:** These are brackets that allow you to snap the PLC onto a standard DIN rail in a control cabinet. [DIN rails](https://sg.rs-online.com/web/content/discovery/ideas-and-advice/din-rails-guide) are a standardised mounting system commonly used in industrial automation.
- **Panel mounting kits:** These kits provide hardware for screwing or bolting the PLC directly onto a flat panel within the control cabinet.
- **Rack mounting kits:** For rack-mounted PLCs, these kits include components for securing the PLC chassis within a mounting rack. The rack itself may be a separate product.
- **Terminal blocks and wiring accessories:** These are not strictly mounting accessories, but they are essential for connecting the PLC's input and output (I/O) signals to external devices. Terminal blocks provide a safe and organised way to terminate wires.

## **Application of PLC Accessories**

While PLC accessories themselves are versatile, their applications mirror the diverse industries where PLCs play a vital role.

- **Industrial:** In industrial settings, PLC accessories enhance the functionality of control systems by enabling precise calibration, connectivity enhancements, and expansion capabilities essential for complex machinery operations.
- **Communication:** PLC accessories support the communication infrastructure by ensuring seamless integration and enhanced signal processing capabilities for telecommunications equipment.
- **Airport:** Essential for the automation of conveyor systems and lighting controls, PLC accessories improve the efficiency and reliability of airport operations from baggage handling to runway management.
- **Hydropower:** Accessories such as signal conditioners and network adapters are used in hydropower plants to ensure accurate data collection and real-time monitoring of equipment performance.
- **Marine:** In the marine industry, PLC accessories help in managing environmental control systems, engine monitoring, and navigation systems, ensuring operational safety and efficiency.

## **How to Choose the Right PLC Accessories?**

Accessories for PLC modules can be chosen depending on the application you need them for. For example, water treatment devices will require different PLC accessories to metallurgy systems. The range of accessories includes batteries, cables, [connectors](https://sg.rs-online.com/web/c/connectors/) and adapters. A battery backup is used by some to protect valuable memory and data in the event of a power outage.

## **Ordering and Delivery Information**

Ordering PLC accessories from [RS](https://sg.rs-online.com/web/) is efficient and user-friendly. The quickest way to place your order is online, where you can easily add products to your basket for next-day delivery or local branch pickup. Alternatively, you can place your order by calling us at +65 6865 3400.

Visit our [delivery information page](https://sg.rs-online.com/web/content/support/all-articles/delivery) to view all available delivery options.



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