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. 746-6785
Mfr. Part No.6ES7392-1BJ00-0AA0
BrandSiemens
TWD1,171.00
Each
units
Front Connector SIMATIC S7-300 SM 331 Analog Input Module - - - - - - - - - - - -
RS Stock No. 196-3651
Mfr. Part No.6ES71936UP000BP2
BrandSiemens
TWD1,002.00
Each
units
Potential Distributor Module ET 200SP SIMATIC - 6ES7193 - - - - - - - - -
New
RS Stock No. 217-6403
Mfr. Part No.2910153
TWD1,049.00
Each
units
Input/output module VIP I/O-Marshalling - - - - - - - - - - - -
RS Stock No. 806-6910
Mfr. Part No.TMC4HOIS01
TWD9,720.00
Each
units
PLC I/O Module Modicon M241 - - TM3 Analogue - - - - - - - -
RS Stock No. 203-4042
Mfr. Part No.6ES7145-4FF00-0AB0
BrandSiemens
TWD11,668.00
Each
units
PLC Expansion Module ET 200 PRO SIMATIC 130 x 45 x 35 mm - Analogue - - - Analogue - - - -
RS Stock No. 203-4020
Mfr. Part No.6ES7134-6HB00-0DA1
BrandSiemens
TWD11,442.00
Each
units
Analog Input Module - SIMATIC 73 x 15 x 58 mm I/O SYSTEM 750 Analogue - - - - - - - -
RS Stock No. 858-6745
Mfr. Part No.2314804
TWD10,203.00
Each
units
Cable & Connector Yokogawa Centum CS3000R3, Yokogawa Stardom - - - - - - - - 10m - - -
RS Stock No. 806-7089
Mfr. Part No.TM3XTYS4
TWD5,868.00
Each
units
PLC Expansion Module Modicon M221, Modicon M241, Modicon M251 - 70 x 23.6 x 90 mm - - - - - - - - - -
New
RS Stock No. 215-8345
Mfr. Part No.SRT2-ID16
BrandOmron
TWD8,785.00
Each
units
Digital Input Terminal CompoBus/S SRT - - - - - - - - - - -
RS Stock No. 124-3351
Mfr. Part No.2906598
TWD184.00
Each
units
PLC I/O Module - - 10.3 x 64.2 x 72.9 mm - Analogue - System Cabling DIN Rail Analogue - - - -
RS Stock No. 857-6546
Mfr. Part No.2306977
TWD8,516.00
Each
units
Splitting Cable Yokogawa Centum CS3000R3, Yokogawa Stardom - - - - - - - - 5m - - -
RS Stock No. 203-4208
Mfr. Part No.6ES7142-4BD00-0AA0
BrandSiemens
TWD3,424.00
Each
units
PLC Expansion Module ET 200 PRO SIMATIC 130 x 45 x 35 mm - Digital - - - Digital - - - -
RS Stock No. 852-9464
Mfr. Part No.2318703
TWD1,545.00
Each
units
Cable - - - VIP-CAB-FLK34/0.14/0.5M - - - - - - - - -
RS Stock No. 203-2869
Mfr. Part No.6ES7194-4AF00-0AA0
BrandSiemens
TWD5,586.00
Each
units
Connection Module PROFINET Interface Module SIMATIC DP - - - - - - - - - - -
RS Stock No. 858-3140
Mfr. Part No.2904637
TWD10,952.00
Each
units
Cable & Connector Yokogawa Centum CS3000R3, Yokogawa Stardom - - - - - - - - 10m - - -
RS Stock No. 203-4071
Mfr. Part No.6ES7132-6BH01-0BA0
BrandSiemens
TWD4,099.00
Each
units
PLC I/O Module - SIMATIC 73 x 15 x 58 mm ET 200 Digital - - - Transistor - - - -
RS Stock No. 201-6808
Mfr. Part No.2688501
TWD16,144.00
Each
units
PLC I/O Module - - 126.1 x 35 x 54 mm - Analogue - - - - - - - -
RS Stock No. 855-1430
Mfr. Part No.2878722
TWD14,516.00
Each
units
PLC I/O Module - - 136 x 24.4 x 71.5 mm - - - - - - - - - -
RS Stock No. 196-1242
Mfr. Part No.2403018
TWD16,698.00
Each
units
PLC Expansion Module INTERBUS - 35 x 54 x 126.1 mm - - - - DIN Rail - - - - -
RS Stock No. 203-4185
Mfr. Part No.6ES7193-6AF00-0AA0
BrandSiemens
TWD2,748.00
Each
units
Bus Adapter PROFINET SIMATIC - - - - - - - - - - -