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 Series Termination Module Type Memory Dimensions Depth Memory Available Length
RS Stock No. 917-6395
BrandRS PRO
$38.85
Each
units
USB Cable Logic Module - Automation, Commercial, Industrial - - - Plug-In - - - - - -
RS Stock No. 615-2365
Mfr. Part No.SR2USB01
$241.68
Each
units
Cable Zelio Logic 2 - - 3m - Zelio Plug-In - - - - - -
RS Stock No. 455-6670
Mfr. Part No.QC30R2
BrandMitsubishi
$127.20
Each
units
Cable QC Series - - - - - - - - - - - -
RS Stock No. 667-9220
Mfr. Part No.750-400
BrandWago
$92.41
Each
units
PLC I/O Module 750 Series - - - - M258 - - - - - - -
RS Stock No. 340-1939
Mfr. Part No.AL-232CAB
BrandMitsubishi
$159.67
Each
units
Cable Alpha Series - - - - - - - - - - - -
RS Stock No. 147-691
Mfr. Part No.BMXFTB2020
$78.24
Each
units
Terminal Block Modicon M340 - - - - - - - - - - - -
RS Stock No. 735-2904
Mfr. Part No.6ES7241-1CH30-1XB0
BrandSiemens
$218.27
Each
units
PLC I/O Module S7-1200 Series SIMATIC - - - - - - - - - - -
RS Stock No. 745-8005
Mfr. Part No.IROPZ485S0
BrandCarel
$105.81
Each
units
Converter, RS485 Easy Compact Series, Easy Series, Easy Split, IR33 - - - - - - - - - - - -
RS Stock No. 468-5835
Mfr. Part No.6ES7901-3DB30-0XA0
BrandSiemens
$515.70
Each
units
Cable 6ES Series - - - - - - - - - - - -
RS Stock No. 681-8703
Mfr. Part No.BMXFTB2820
$79.15
Each
units
Terminal Block Modicon M340 - - - - - - - - - - - -
RS Stock No. 820-8508
Mfr. Part No.BMXRMS004GPF
$1,128.02
Each
units
Memory Card Medicon M580 - - - - - - - - - - - -
RS Stock No. 667-9217
Mfr. Part No.750-340
BrandWago
$918.49
Each
units
PLC I/O Module 750 Series - - - - TM5 - - - - - - -
RS Stock No. 443-0231
Mfr. Part No.EASY800-PC-CAB
BrandEaton
$190.87
Each
units
Cable Easy 800 Series, MFD-CP8 - - - - - - - - - - - -
RS Stock No. 735-2884
Mfr. Part No.6ES7231-4HA30-0XB0
BrandSiemens
$149.59
Each
units
PLC I/O Module SIMATIC S7-1200 Series SIMATIC - - - - - - - - - - -
RS Stock No. 614-0687
Mfr. Part No.6GK5101-1BB00-2AA3
BrandSiemens
$856.55
Each
units
- - - - - - - - - - - - - -
RS Stock No. 806-6972
Mfr. Part No.TM3DQ32TK
$550.25
Each
units
PLC I/O Module Modicon M221, Modicon M241, Modicon M251 - - - - TM3 Series - - - - - - -
RS Stock No. 828-5252
Mfr. Part No.6ES7231-4HD32-0XB0
BrandSiemens
$444.71
Each
units
PLC I/O Module SIMATIC S7-1200 SIMATIC - - - IB IL AO 4/8/U/BP-XC-PAC - - - - - - -
RS Stock No. 746-6750
Mfr. Part No.6ES7390-1AB60-0AA0
BrandSiemens
$50.05
Each
units
Rail SIMATIC S7-300 Modular Controller - - - - - - - - - - - -
RS Stock No. 787-7973
Mfr. Part No.6ES7232-4HB32-0XB0
BrandSiemens
$550.10
Each
units
PLC I/O Module SIMATIC S7-1200 Series SIMATIC - - - TM3 Series - - - - - - -
RS Stock No. 825-1704
Mfr. Part No.6ED1058-0BA08-0YA1
BrandSiemens
$141.19
Each
units
PLC Programming Software LOGO! 8 Series - - - - - - - - - - - -