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 Series Input Type Termination Application Mounting Type Output Type Cable Length Number of I/O Hazardous Area Certification Number of Outputs
RS Stock No. 512-5924
Mfr. Part No.CJ1W-PD025
BrandOmron
SGD522.61
Each
units
PLC Power Supply CJ1M Series - 81.6 x 90 x 60 mm CJ1W - - - - - - - - -
RS Stock No. 401-444
Mfr. Part No.CP1W-20EDR1
BrandOmron
SGD515.38
Each
units
PLC Expansion Module PLC Module - 90 x 86 x 50 mm - Voltage - - - Relay - - - -
RS Stock No. 512-5889
Mfr. Part No.CJ1WID211
BrandOmron
SGD353.38
Each
units
PLC I/O Module SYSMAC CJ Series - 89 x 31 x 95.4 mm SYSMAC CJ Series Digital - - - - - - - -
RS Stock No. 455-6670
Mfr. Part No.QC30R2
BrandMitsubishi
SGD113.16
Each
units
Cable QC Series - - - - - - - - - - - -
RS Stock No. 662-3595
Mfr. Part No.6ES7134-4GB01-0AB0
BrandSiemens
SGD294.49
Each
units
PLC I/O Module SIMATIC ET 200S Series SIMATIC 81 x 15 x 52 mm Micro 800 Analogue - - - - - - - -
RS Stock No. 665-4925
Mfr. Part No.7KM9300-0AM00-0AA0
BrandSiemens
SGD170.09
Each
units
PLC Expansion Module PAC3200 Series, PAC4200 Series - - - - - - - - - - - -
RS Stock No. 510-1467
Mfr. Part No.CJ1W-MAD42
BrandOmron
SGD1,677.02
Each
units
PLC Expansion Module SYSMAC CJ Series - 90 x 31 x 65 mm - Analogue - - - Analogue - - - -
RS Stock No. 510-4488
Mfr. Part No.CJ1W-ID211-SL
BrandOmron
SGD353.38
Each
units
PLC Expansion Module SYSMAC CJ Series - 90 x 31 x 89 mm - Digital - - - - - - - -
RS Stock No. 917-6395
BrandRS PRO
SGD32.35
Each
units
USB Cable Logic Module - - - - Plug-In Automation, Commercial, Industrial - - - - - -
RS Stock No. 453-2618
Mfr. Part No.6ES7321-1BL00-0AA0
BrandSiemens
SGD1,053.74
Each
units
Input Relay Module S7-300 Series SIMATIC 125 x 40 x 120 mm SIMATIC S7-300 Series Digital - - - - - - - -
RS Stock No. 615-2371
Mfr. Part No.SR2MOD02
SGD908.34
Each
units
PLC I/O Module - - - - - - - - - - - - -
RS Stock No. 890-4228
Mfr. Part No.GT Works3 V01-2L0C-E
BrandMitsubishi
SGD477.03
Each
units
PLC Programming Software GOT Series HMI's - - - - - - - - - - - -
RS Stock No. 512-5902
Mfr. Part No.CJ1W-OD212
BrandOmron
SGD413.73
Each
units
PLC I/O Module SYSMAC CJ Series - 89 x 31 x 95.4 mm SYSMAC CJ Series - - - - Digital, Transistor - - - -
RS Stock No. 365-2250
Mfr. Part No.CS1WCN226
BrandOmron
SGD301.15
Each
units
Cable CS1W Series - - - - - - - - - - - -
RS Stock No. 787-7986
Mfr. Part No.6ES7234-4HE32-0XB0
BrandSiemens
SGD647.71
Each
units
PLC I/O Module SIMATIC S7-1200 Series SIMATIC 100 x 45 x 75 mm TM3 Analogue - - - Analogue - - - -
RS Stock No. 148-183
Mfr. Part No.BMXDDI1602
SGD297.27
Each
units
PLC I/O Module M340 Series - - M340 Discrete - - - - - - - -
RS Stock No. 401-484
Mfr. Part No.CP1W-CIF01
BrandOmron
SGD130.08
Each
units
PLC Expansion Module CP1E-N30 Series, CP1E-N40 Series, CP1E-N60 Series, NA20 Series - - - - - - - - - - - -
RS Stock No. 453-2539
Mfr. Part No.6ES7322-1BH01-0AA0
BrandSiemens
SGD501.87
Each
units
PLC I/O Module SIMATIC S7-300 Series SIMATIC 125 x 40 x 120 mm SIMATIC S7-300 Series - - - - Digital - - - -
RS Stock No. 455-6737
Mfr. Part No.Q38B-E
BrandMitsubishi
SGD407.51
Each
units
Base Unit MELSEC Q Series - - Q Controller - - - DIN Rail - - - - -
RS Stock No. 146-068
Mfr. Part No.GRT1-DRT
BrandOmron
SGD723.44
Each
units
PLC Expansion Module DeviceNet Communication, SmartSlice I/O Units - 90 x 58 x 70 mm - - - - - - - - - -