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. 735-2910
Mfr. Part No.6GK7243-5DX30-0XE0
BrandSiemens
kr 4 729,06
Each
Units
PLC I/O Module S7-1200 Series SIMATIC - - - - - - - - - - -
RS Stock No. 787-7970
Mfr. Part No.6ES7231-4HF32-0XB0
BrandSiemens
kr 3 847,39
Each
Units
PLC I/O Module SIMATIC S7-1200 Series SIMATIC 100 x 45 x 75 mm TM3 Analogue - - - Analogue - - - -
RS Stock No. 787-7961
Mfr. Part No.6ES7223-1PL32-0XB0
BrandSiemens
kr 2 899,40
Each
Units
PLC I/O Module SIMATIC S7-1200 Series SIMATIC 100 x 70 x 75 mm M241 Digital - - - Relay - - - -
RS Stock No. 453-2545
Mfr. Part No.6ES7331-7KF02-0AB0
BrandSiemens
kr 8 659,07
Each
Units
PLC Expansion Module S7-300 Series - 125 x 40 x 120 mm SIMATIC S7-300 Series Analogue - - - - - - - -
RS Stock No. 536-9174
BrandCrouzet
kr 1 145,30
Each
Units
Cable Millenium III Series - - - - - - - - - - - -
RS Stock No. 848-7824
Mfr. Part No.6ES7971-0BA00
BrandSiemens
kr 195,39
Each
Units
Back Up Battery PS 405/PS 407 Power Supply - - - - - - - - - - - -
RS Stock No. 528-0576
Mfr. Part No.2862385
kr 3 867,94
Each
Units
PLC I/O Module INTERBUS - 140.5 x 156 x 57 mm Modicon TSX Micro Digital - - - Digital - - - -
RS Stock No. 735-2888
Mfr. Part No.6ES7231-5PA30-0XB0
BrandSiemens
kr 1 019,74
Each
Units
PLC I/O Module SIMATIC S7-1200 Series SIMATIC 62 x 38 x 21 mm - Analogue, RTD - - - - - - - -
RS Stock No. 810-4147
Mfr. Part No.6ES7231-5PD32-0XB0
BrandSiemens
kr 3 310,34
Each
Units
PLC I/O Module CPU 1211, CPU 1212, CPU 1214 SIMATIC 100 x 45 x 75 mm E10A Analogue - - - - - - - -
RS Stock No. 787-7945
Mfr. Part No.6ES7221-1BH32-0XB0
BrandSiemens
kr 1 829,66
Each
Units
PLC I/O Module SIMATIC S7-1200 Series SIMATIC 100 x 45 x 75 mm M241 Digital - - - - - - - -
RS Stock No. 719-1936
Mfr. Part No.750-1504
BrandWago
kr 1 428,61
Each
Units
PLC I/O Module 750 Series - 67 x 12 x 100 mm - - - - - Digital - - - -
RS Stock No. 340-1939
Mfr. Part No.AL-232CAB
BrandMitsubishi
kr 615,60
Each
Units
Cable Alpha Series - - - - - - - - - - - -
RS Stock No. 417-950
Mfr. Part No.6ES7972-0BB12-0XA0
BrandSiemens
kr 575,10
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 512-5918
Mfr. Part No.CJ1W-PA202
BrandOmron
kr 2 728,00
Each
Units
PLC Power Supply CJ1M Series - 81.6 x 90 x 45 mm CJ1W - - - - - - - - -
RS Stock No. 810-4166
Mfr. Part No.6ES7241-1CH32-0XB0
BrandSiemens
kr 1 348,05
Each
Units
PLC Expansion Module S7-1200 Series - 100 x 30 x 75 mm - RS232 - - - RS422/485 - - - -
RS Stock No. 787-7949
Mfr. Part No.6ES7222-1BF32-0XB0
BrandSiemens
kr 1 153,46
Each
Units
PLC I/O Module SIMATIC S7-1200 Series SIMATIC 100 x 45 x 75 mm M241 Digital - - - Digital - - - -
RS Stock No. 746-6117
Mfr. Part No.3RX9502-0BA00
BrandSiemens
kr 3 587,56
Each
Units
PLC Power Supply AS-I Power Supply Unit - 125 x 70 x 125 mm 3RX950 - - - - - - - - -
RS Stock No. 508-3959
Mfr. Part No.750600
BrandWago
kr 166,22
Each
Units
PLC I/O Module 750 Series - 100 x 12 x 64 mm - - - - - - - - - -
RS Stock No. 668-5477
Mfr. Part No.CXONE-AL01-EV4
BrandOmron
kr 25 250,00
Each
Units
Software License CX-ONE V4 - - - - - - - - - - - -
RS Stock No. 746-6606
Mfr. Part No.6ES7323-1BL00-0AA0
BrandSiemens
kr 5 134,04
Each
Units
Digital I/O Module S7-300 Series SIMATIC 125 x 40 x 120 mm SM 1222 Digital - - - Digital - - - -