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. 893-6758
Mfr. Part No.1335050000
£177.95
Each
Units
- - - 120 x 11.5 x 76 mm - DIN Rail - - - - +60°C 24 V dc Communication -
RS Stock No. 857-5767
Mfr. Part No.2321774
£139.09
Each
Units
Cable & Connector Schneider Electric Modicon M340 - - - - - - - - - - - 8m
RS Stock No. 203-4113
Mfr. Part No.6ES7193-6AR00-0AA0
BrandSiemens
£51.00
Each
Units
Bus Adapter PROFINET SIMATIC - - - - - - - - - - -
RS Stock No. 893-0669
Mfr. Part No.1315230000
£54.57
Each
Units
- - - 120 x 11.5 x 76 mm - DIN Rail Digital 4 - 2 (Per Channel) A, 8 (Per Module) A +60°C 24 V dc Communication -
RS Stock No. 203-3698
Mfr. Part No.6ES7591-3AA00-0AA0
BrandSiemens
£26.00
Each
Units
Cover Bus Adapter Interface PU 5 SIMATIC - - - - - - - - - - -
RS Stock No. 136-2800
Mfr. Part No.NXAD3603
BrandOmron
£180.80
Each
Units
- CJ PLC, EtherCAT Coupler Unit, NX Series CPU Unit - 12 x 71 x 100 mm Analogue Panel Mount - 4 (Input) - - +55°C -10 → +10 V Communication -
RS Stock No. 203-3652
Mfr. Part No.6ES7592-1AM00-0XB0
BrandSiemens
£34.00
Each
Units
Front Connector S7-1500 SIMATIC - - - - - - - - - - -
RS Stock No. 203-3600
Mfr. Part No.6ES7531-7QF00-0AB0
BrandSiemens
£393.00
Each
Units
- - SIMATIC 147 x 35 x 129 mm Analogue - - - - - - - - -
New
RS Stock No. 215-3517
Mfr. Part No.SYSMAC-SE203L
BrandOmron
£4,621.00
Each
Units
Software SYSMAC-SE200D SYSMAC - - - - - - - - - - -
RS Stock No. 857-6394
Mfr. Part No.2304322
£51.30
Each
Units
Cable & Connector Emerson DeltaV - - - - - - - - - - - 3m
RS Stock No. 203-4147
Mfr. Part No.6ES7193-6BP20-0BC1
BrandSiemens
£19.00
Each
Units
Base Unit ET 200SP SIMATIC - - - - - - - - - - -
RS Stock No. 608-6094
Mfr. Part No.ABE7R16T230
£183.00
Each
Units
Base Quantum Automation Platform - - - - - - - - - - - -
RS Stock No. 858-6739
Mfr. Part No.2314778
£303.81
Each
Units
Splitting Cable Yokogawa Centum CS3000R3, Yokogawa Stardom - - - - - - - - - - - 20m
RS Stock No. 203-2775
Mfr. Part No.6ES7194-2MH02-0AD0
BrandSiemens
£24.00
Each
Units
Connecting Cable Connecting Two ET Connection Bus Cables SIMATIC - - - - - - - - - - -
RS Stock No. 124-3350
Mfr. Part No.2906596
£90.77
Each
Units
PLC I/O Module - - 118.1 x 102.7 x 72.2 mm - DIN Rail - 8 - - +75°C 30 V ac/dc, 120 V ac, 125 V dc System Cabling -
RS Stock No. 852-9590
Mfr. Part No.2904077
£29.80
Each
Units
Cable - - - - - - - - - - - - -
RS Stock No. 196-3692
Mfr. Part No.6GK73431GX310XE0
BrandSiemens
£2,305.24
Each
Units
PLC Expansion Module SIMATIC S7-300 - 80 x 120 x 125 mm RJ45 DIN Rail Digital - - - - - - -
RS Stock No. 858-6707
Mfr. Part No.2314545
£298.31
Each
Units
Cable & Connector Yokogawa Centum CS3000R3, Yokogawa Stardom - - - - - - - - - - - 25m
RS Stock No. 855-3338
Mfr. Part No.2701165
£297.26
Each
Units
PLC I/O Module - - 140.5 x 12.2 x 71.5 mm - - - - - - +55°C - - -
RS Stock No. 857-6445
Mfr. Part No.2304717
£36.30
Each
Units
Cable & Connector Sensors and Actuators - - - - - - - - - - - 5m