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 Dimensions Input Type Mounting Type Output Type Number of I/O Number of Outputs Output Current Maximum Operating Temperature Supply Voltage Application Cable Length
RS Stock No. 147-837
Mfr. Part No.BMXFCC103
TWD2,173.00
Each
units
Cord Set Modicon M340 - - - - - - - - - - - -
RS Stock No. 148-032
Mfr. Part No.BMXCPS2010
TWD8,160.00
Each
units
- Modicon M340 - - - - - - - 2.5 A +60°C - - -
RS Stock No. 860-3698
Mfr. Part No.2296838
TWD4,104.00
Each
units
Splitting Cable Allen-Bradley SLC 500 - - - - - - - - - - - 2m
RS Stock No. 806-6994
Mfr. Part No.TM3DQ8UG
TWD13,002.00
Each
units
PLC I/O Module Modicon M221, Modicon M241, Modicon M251 - 90 x 23.6 x 70 mm - - Transistor - 8 500 mA - - - -
RS Stock No. 781-6919
Mfr. Part No.FX2N-2AD
BrandMitsubishi
TWD8,881.00
Each
units
PLC Expansion Module FX2N Series - 90 x 43 x 87 mm Analogue - Digital - 2 - - - - -
RS Stock No. 806-7054
Mfr. Part No.TM3TM3
TWD13,935.00
Each
units
PLC I/O Module Modicon M221, Modicon M241, Modicon M251 - 90 x 23.6 x 70 mm Current, Temperature, Voltage - Current, Voltage 3 1 0 → 20 mA - - - -
RS Stock No. 806-6957
Mfr. Part No.TM3DQ16R
TWD8,785.00
Each
units
PLC I/O Module Modicon M221, Modicon M241, Modicon M251 - 90 x 23.6 x 70 mm - - Relay - 16 2 A - - - -
RS Stock No. 860-3701
Mfr. Part No.2296919
TWD1,212.00
Each
units
Cable & Connector Siemens Top Connect - - - - - - - - - - - 500mm
RS Stock No. 852-9596
Mfr. Part No.2904076
TWD1,254.00
Each
units
Cable - - - - - - - - - - - - -
RS Stock No. 662-3602
Mfr. Part No.6ES7193-4CD30-0AA0
BrandSiemens
TWD377.00
Each
units
Terminal ET 200S Power Modules - 132 x 15 x 43 mm - - - - - - - - - -
RS Stock No. 806-6972
Mfr. Part No.TM3DQ32TK
TWD10,623.00
Each
units
PLC I/O Module Modicon M221, Modicon M241, Modicon M251 - 90 x 30.2 x 70 mm - - Source, Transistor - 32 100 mA - - - -
RS Stock No. 746-6589
Mfr. Part No.6ES7322-1FH00-0AA0
BrandSiemens
TWD16,409.00
Each
units
- S7-300 Series SIMATIC 125 x 40 x 120 mm - - Digital - 16 - - - - -
RS Stock No. 122-1522
Mfr. Part No.0091-0012
BrandBARTH
TWD668.00
Each
units
USB Cable Mini-PLC STG-115 / 600 - - - - - - - - - - Mini-PLC 0.5m
RS Stock No. 857-2250
Mfr. Part No.2903782
TWD2,193.00
Each
units
Varioface Module - - 57.1 x 63 x 75.8 mm - DIN Rail - - - - 50°C - - -
RS Stock No. 455-6759
Mfr. Part No.Q312B-E
BrandMitsubishi
TWD10,422.00
Each
units
- MELSEC Q Series - - - DIN Rail - - - - +55°C - - -
RS Stock No. 806-6998
Mfr. Part No.TM3DQ16U
TWD8,069.00
Each
units
PLC I/O Module Modicon M221, Modicon M241, Modicon M251 - 90 x 23.6 x 70 mm - - Transistor - 16 500 mA - - - -
RS Stock No. 746-6659
Mfr. Part No.6ES7332-7ND02-0AB0
BrandSiemens
TWD30,689.00
Each
units
PLC Expansion Module S7-300 Series - 125 x 40 x 120 mm - - Analogue - 4 - - - - -
RS Stock No. 148-133
Mfr. Part No.BMXXTSHSC20
TWD785.00
Each
units
Connection Kit M340 Counter Module - - - - - - - - - - - -
RS Stock No. 715-8935
Mfr. Part No.GHQ6310074R0111
BrandABB
TWD2,286.00
Each
units
PLC I/O Module - - - - - - - - - - - - -
RS Stock No. 806-7058
Mfr. Part No.TM3TM3G
TWD19,802.00
Each
units
PLC I/O Module Modicon M221, Modicon M241, Modicon M251 - 90 x 23.6 x 70 mm Current, Temperature, Voltage - Current, Voltage 3 1 0 → 20 mA - - - -