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 Input Type Dimensions Series Termination Application Mounting Type Output Type Cable Length Number of I/O Hazardous Area Certification Number of Outputs
RS Stock No. 806-6926
Mfr. Part No.TM3DI8G
TWD5,570.00
Each
units
PLC I/O Module Modicon M221, Modicon M241, Modicon M251 - - 90 x 23.6 x 70 mm TM3 - - - - - - - -
RS Stock No. 455-6872
Mfr. Part No.QG60
BrandMitsubishi
TWD833.00
Each
units
Cover PLC Blanking Module - - - - - - - - - - - -
RS Stock No. 746-6659
Mfr. Part No.6ES7332-7ND02-0AB0
BrandSiemens
TWD31,287.00
Each
units
PLC Expansion Module S7-300 Series - - 125 x 40 x 120 mm - - - - Analogue - - - -
RS Stock No. 401-529
Mfr. Part No.CP1W-CN811
BrandOmron
TWD4,426.00
Each
units
Cable CP1W Series - - - - - - - - - - - -
RS Stock No. 662-3678
Mfr. Part No.6ES7151-3AA23-0AB0
BrandSiemens
TWD12,524.00
Each
units
PLC I/O Module ET200S Series SIMATIC - 119.5 x 60 x 75 mm TM5 - - - - - - - -
RS Stock No. 857-2250
Mfr. Part No.2903782
TWD2,302.00
Each
units
Varioface Module - - - 57.1 x 63 x 75.8 mm VARIOFACE - - DIN Rail - - - - -
RS Stock No. 806-7036
Mfr. Part No.TM3AQ2G
TWD14,947.00
Each
units
PLC I/O Module Modicon M221, Modicon M241, Modicon M251 - - 90 x 23.6 x 70 mm FC4A - - - Current, Voltage - - - -
RS Stock No. 806-6963
Mfr. Part No.TM3DQ8TG
TWD9,102.00
Each
units
PLC I/O Module Modicon M221, Modicon M241, Modicon M251 - - 90 x 23.6 x 70 mm TM3 - - - Source, Transistor - - - -
RS Stock No. 147-871
Mfr. Part No.BMXXEM010
TWD1,718.00
Each
units
Empty Slot Cover Modicon M340 / M580 - - - - - - - - - - - -
RS Stock No. 612-9084
Mfr. Part No.6ES7334-0CE01-0AA0
BrandSiemens
TWD18,628.00
Each
units
PLC I/O Module SIMATIC S7-300 Series SIMATIC Analogue 125 x 40 x 120 mm PSI-DATA/BASIC-MODEM/RS232 - - - Analogue - - - -
RS Stock No. 860-3547
Mfr. Part No.2289120
TWD4,344.00
Each
units
Cable & Connector Sensors and Actuators - - - - - - - - 3.5m - - -
RS Stock No. 623-7680
Mfr. Part No.VBA-4E3A-KE-ZE/R
TWD6,236.00
Each
units
PLC I/O Module - - - 102 x 22.5 x 99 mm CJ1W - - - - - - - -
RS Stock No. 148-183
Mfr. Part No.BMXDDI1602
TWD7,715.00
Each
units
PLC I/O Module M340 Series - Discrete - M340 - - - - - - - -
RS Stock No. 875-5701
Mfr. Part No.FX5-16EX/ES
BrandMitsubishi
TWD8,051.00
Each
units
PLC I/O Module FX5U CPU Module, FX5UC CPU Module - Sink, Source 40 x 90 x 83 mm G4 - - Panel Mount - - - - -
RS Stock No. 510-1417
Mfr. Part No.CJ1W-AD081
BrandOmron
TWD29,547.00
Each
units
PLC I/O Module SYSMAC CJ Series, SYSMAC CP1H Series, SYSMAC CP1L Series - Analogue 90 x 31 x 65 mm SYSMAC CJ Series, SYSMAC CP1H, SYSMAC CP1L - - - - - - - -
RS Stock No. 806-7058
Mfr. Part No.TM3TM3G
TWD20,792.00
Each
units
PLC I/O Module Modicon M221, Modicon M241, Modicon M251 - Current, Temperature, Voltage 90 x 23.6 x 70 mm FP0 - - - Current, Voltage - - - -
RS Stock No. 147-657
Mfr. Part No.BMXRMS008MP
TWD1,944.00
Each
units
- Modicon M340 - - - - - - - - - - - -
RS Stock No. 746-6589
Mfr. Part No.6ES7322-1FH00-0AA0
BrandSiemens
TWD16,729.00
Each
units
Digital Output Module S7-300 Series SIMATIC - 125 x 40 x 120 mm SM 1221 - - - Digital - - - -
RS Stock No. 860-3698
Mfr. Part No.2296838
TWD4,309.00
Each
units
Splitting Cable Allen-Bradley SLC 500 - - - - - - - - 2m - - -
RS Stock No. 715-8917
Mfr. Part No.2CDG110025R0011 DG/S8.1
BrandABB
TWD18,135.00
Each
units
PLC I/O Module - - - - - - - - - - - - -