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. 147-837
Mfr. Part No.BMXFCC103
TWD2,215.00
Each
units
Cord Set Modicon M340 - - - - - - - - - - - -
RS Stock No. 122-1522
Mfr. Part No.0091-0012
BrandBARTH
TWD668.00
Each
units
USB Cable Mini-PLC STG-115 / 600 - - - VK-12 Plug-In Mini-PLC - - 0.5m - - -
RS Stock No. 148-133
Mfr. Part No.BMXXTSHSC20
TWD797.00
Each
units
Connection Kit M340 Counter Module - - - - - - - - - - - -
RS Stock No. 148-032
Mfr. Part No.BMXCPS2010
TWD9,409.00
Each
units
PLC Power Supply Modicon M340 - - - Modicon M340 - - - - - - - -
RS Stock No. 806-7039
Mfr. Part No.TM3AI8G
TWD19,957.00
Each
units
PLC I/O Module Modicon M221, Modicon M241, Modicon M251 - Current, Voltage 90 x 23.6 x 70 mm FC4A - - - - - - - -
RS Stock No. 806-7045
Mfr. Part No.TM3AQ4
TWD13,816.00
Each
units
PLC I/O Module Modicon M221, Modicon M241, Modicon M251 - - 90 x 23.6 x 70 mm FP2 - - - Current, Voltage - - - -
RS Stock No. 806-7064
Mfr. Part No.TM3TI8T
TWD14,632.00
Each
units
PLC I/O Module Modicon M221, Modicon M241, Modicon M251 - Current, Voltage 90 x 23.6 x 70 mm AFP85 - - - - - - - -
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. 662-3621
Mfr. Part No.6ES7138-4CB11-0AB0
BrandSiemens
TWD1,763.00
Each
units
PLC I/O Module ET200S Series SIMATIC - 81 x 15 x 52 mm TM5 - - - Current, Potential, Voltage - - - -
RS Stock No. 806-7008
Mfr. Part No.TM3DQ32UK
TWD16,617.00
Each
units
PLC I/O Module Modicon M221, Modicon M241, Modicon M251 - - 90 x 30.2 x 70 mm - - - - Source, Transistor - - - -
RS Stock No. 147-938
Mfr. Part No.BMXXBP0800
TWD9,965.00
Each
units
Backplane Modicon M340 - - 372.8 x 103.7 x 19 mm Modicon M340 - - DIN Rail - - - - -
RS Stock No. 806-6994
Mfr. Part No.TM3DQ8UG
TWD13,652.00
Each
units
PLC I/O Module Modicon M221, Modicon M241, Modicon M251 - - 90 x 23.6 x 70 mm TM3 - - - Transistor - - - -
RS Stock No. 806-7070
Mfr. Part No.TM3XREC1
TWD3,792.00
Each
units
PLC Expansion Module Modicon M2xx - - - - - - - - - - - -
RS Stock No. 806-7026
Mfr. Part No.TM3AI4G
TWD16,617.00
Each
units
PLC I/O Module Modicon M221, Modicon M241, Modicon M251 - Current, Voltage 90 x 23.6 x 70 mm FC4A - - - - - - - -
RS Stock No. 806-6944
Mfr. Part No.TM3DQ8R
TWD6,646.00
Each
units
PLC I/O Module Modicon M221, Modicon M241, Modicon M251 - - 90 x 23.6 x 70 mm TM3 - - - Relay - - - -
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. 455-6759
Mfr. Part No.Q312B-E
BrandMitsubishi
TWD10,625.00
Each
units
Base Unit MELSEC Q Series - - - Q Controller - - DIN Rail - - - - -
RS Stock No. 860-3701
Mfr. Part No.2296919
TWD1,272.00
Each
units
Cable & Connector Siemens Top Connect - - - - - - - - 500mm - - -
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. 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 - - - -