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. 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. 806-7048
Mfr. Part No.TM3AQ4G
TWD19,957.00
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. 715-8917
Mfr. Part No.2CDG110025R0011 DG/S8.1
BrandABB
TWD18,135.00
Each
units
PLC I/O Module - - - - - - - - - - - - -
RS Stock No. 806-7054
Mfr. Part No.TM3TM3
TWD14,632.00
Each
units
PLC I/O Module Modicon M221, Modicon M241, Modicon M251 - 90 x 23.6 x 70 mm FP2 Current, Temperature, Voltage - - - Current, Voltage - - - -
RS Stock No. 674-1918
Mfr. Part No.TM2ALM3LT
TWD19,748.00
Each
units
- Modicon M238, Twido Series - 95.6 x 27.3 x 94.5 mm - Analogue - - - Analogue - - - 1
RS Stock No. 148-060
Mfr. Part No.BMXEHC0200
TWD17,299.00
Each
units
PLC I/O Module Modicon M340 - 503.2 x 100 x 150 mm BMX Encoder - - - Configurable - - - -
RS Stock No. 806-6954
Mfr. Part No.TM3DQ8T
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. 662-3678
Mfr. Part No.6ES7151-3AA23-0AB0
BrandSiemens
TWD12,479.00
Each
units
PLC I/O Module ET200S Series SIMATIC 119.5 x 60 x 75 mm TM5 - - - - - - - - -
RS Stock No. 828-5252
Mfr. Part No.6ES7231-4HD32-0XB0
BrandSiemens
TWD8,322.00
Each
units
PLC I/O Module SIMATIC S7-1200 SIMATIC 100 x 45 x 75 mm IB IL AO 4/8/U/BP-XC-PAC Analogue - - - - - - - -
RS Stock No. 815-5763
Mfr. Part No.AFP0RE16RS
BrandPanasonic
TWD8,781.00
Each
units
PLC Expansion Module FPOR Series - 25 x 90 x 60 mm - Sink, Source - - - Relay - - - -
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. 148-161
Mfr. Part No.BMXP342020
TWD49,908.00
Each
units
PLC Expansion Module Modicon M340 - - - Analogue, Discrete - - - Analogue, Discrete - - - -
RS Stock No. 806-7001
Mfr. Part No.TM3DQ16UG
TWD12,442.00
Each
units
PLC I/O Module Modicon M221, Modicon M241, Modicon M251 - 90 x 23.6 x 70 mm - - - - - Transistor - - - -
RS Stock No. 806-7058
Mfr. Part No.TM3TM3G
TWD20,792.00
Each
units
PLC I/O Module Modicon M221, Modicon M241, Modicon M251 - 90 x 23.6 x 70 mm FP0 Current, Temperature, Voltage - - - Current, Voltage - - - -
RS Stock No. 409-808
Mfr. Part No.Q62DAN
TWD16,141.00
Each
units
PLC I/O Module MELSEC Q Series - 98 x 27.4 x 112 mm MELSEC Q Digital - - - Analogue - - - -
RS Stock No. 806-6948
Mfr. Part No.TM3DQ8RG
TWD6,743.00
Each
units
PLC I/O Module Modicon M221, Modicon M241, Modicon M251 - 90 x 23.6 x 70 mm TM3 - - - - Relay - - - -
RS Stock No. 453-2545
Mfr. Part No.6ES7331-7KF02-0AB0
BrandSiemens
TWD31,354.00
Each
units
PLC Expansion Module S7-300 Series - 125 x 40 x 120 mm SIMATIC S7-300 Series Analogue - - - - - - - -
RS Stock No. 806-6957
Mfr. Part No.TM3DQ16R
TWD9,224.00
Each
units
PLC I/O Module Modicon M221, Modicon M241, Modicon M251 - 90 x 23.6 x 70 mm TM3 - - - - Relay - - - -
RS Stock No. 539-0954
Mfr. Part No.FX3U-64DP-M
BrandMitsubishi
TWD22,930.00
Each
units
PLC I/O Module FX3U Series - 90 x 43 x 87 mm FX3U Series - - - - - - - - -
RS Stock No. 860-3698
Mfr. Part No.2296838
TWD4,309.00
Each
units
Splitting Cable Allen-Bradley SLC 500 - - - - - - - - 2m - - -