PLC Accessories

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 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, USB and ethernet connectors and cables.
  • Expansion modules - are 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 - are 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 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 - is 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.
  • Racks and enclosures - are the perfect solution to mounting the modular components that hold everything together within a programmable logic controller. They're available in different sizes and mounting types including DIN rail.
  • Training manuals - offer a clear, visual explanation of the system and processes.

How to choose the right PLC accessories

Accessories for PLCs 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 and adapters. A battery backup is used by some to protect valuable memory and data in the event of a power outage.


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Description Price Accessory Type For Use With Range Application Cable Length Hazardous Area Certification Priced to Clear Series Termination
RS Stock No. 611-9548
Mfr. Part No.FX2N-8EX-ES/UL
BrandMitsubishi
£101.50
Each
Units
PLC Expansion Module FX3U Series - - - - - - -
RS Stock No. 698-7357
Mfr. Part No.1746-OW16
£459.00
Each
Units
PLC I/O Module SLC 500 Series - - - - - - -
RS Stock No. 612-9078
Mfr. Part No.6ES7331-7HF01-0AB0
BrandSiemens
£734.00
Each
Units
PLC I/O Module SIMATIC S7-300 Series SIMATIC - - - - GRT1 Series -
RS Stock No. 746-6621
Mfr. Part No.6ES7331-7KB02-0AB0
BrandSiemens
£221.00
Each
Units
PLC I/O Module SIMATIC S7-300 Series SIMATIC - - - - SM 1222 -
RS Stock No. 340-1939
Mfr. Part No.AL-232CAB
BrandMitsubishi
£47.50
Each
Units
Cable Alpha Series - - - - - - -
RS Stock No. 662-3561
Mfr. Part No.6ES7138-4CA01-0AA0
BrandSiemens
£15.00
Each
Units
PLC I/O Module ET200S Series SIMATIC - - - - MicroLogix 1762 -
RS Stock No. 698-7596
Mfr. Part No.1762-L40BWA
£779.00
Each
Units
PLC I/O Module MicroLogix 1200 Series - - - - - - -
RS Stock No. 647-2502
Mfr. Part No.Q61P
£160.82
Each
Units
- PSU Series, Q Series - - - - - - -
RS Stock No. 714-0085
Mfr. Part No.1761-CBL-PM02
£61.80
Each
Units
Cable MicroLogix Series - - - - - - -
RS Stock No. 455-6939
Mfr. Part No.QY10
BrandMitsubishi
£165.50
Each
Units
PLC I/O Module MELSEC Q Series - - - - - MFD-AC-CP8, MFD-CP10 -
RS Stock No. 698-7326
Mfr. Part No.1746-P2
£736.00
Each
Units
- - - - - - - - -
RS Stock No. 539-0730
Mfr. Part No.FX3U-4AD-ADP
BrandMitsubishi
£242.50
Each
Units
PLC I/O Module FX3U Series - - - - - SIMATIC S7-300 Series -
RS Stock No. 147-988
Mfr. Part No.BMXAMI0410
£308.00
Each
Units
PLC I/O Module M340 Series - - - - - M340 -
RS Stock No. 698-7679
Mfr. Part No.1762-IF4
£390.67
Each
Units
PLC I/O Module MicroLogix 1100 Series, MicroLogix 1200 Series, MicroLogix 1400 Series - - - - - - -
RS Stock No. 510-1669
Mfr. Part No.CJ1W-BAT01
BrandOmron
£30.82
Each
Units
Battery SYSMAC CJ Series - - - - - - -
RS Stock No. 624-1831
Mfr. Part No.Q6-BAT
BrandMitsubishi
£27.50
Each
Units
- Q Series - - - - - - -
RS Stock No. 320-9121
Mfr. Part No.FX2N-16EYR-ES/UL
BrandMitsubishi
£202.00
Each
Units
PLC I/O Module FX2N Series - - - - - FX2N Series -
RS Stock No. 698-7754
Mfr. Part No.1747-UIC
£446.00
Each
Units
Interface Module SLC 5/01, SLC 5/02, SLC 5/03, SLC 5/04, SLC 5/05 - - - - - - -
RS Stock No. 455-6664
Mfr. Part No.Q63P
BrandMitsubishi
£241.50
Each
Units
- MELSEC Q Series - - - - - - -
RS Stock No. 468-5835
Mfr. Part No.6ES7901-3DB30-0XA0
BrandSiemens
£220.69
Each
Units
Cable 6ES Series - - - - - - -