Inst ToolsInst ToolsInst Tools
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Search
  • Books
  • Software
  • Projects
  • Process
  • Tools
  • Basics
  • Formula
  • Power Plant
  • Root Cause Analysis
  • Electrical Basics
  • Animation
  • Standards
  • 4-20 mA Course
  • Siemens PLC Course
Reading: Communication Processor Module in Siemens PLC
Share
Font ResizerAa
Inst ToolsInst Tools
Font ResizerAa
  • Courses
  • Design
  • PLC
  • Interview
  • Control System
Search
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Inst Tools > Blog > PLC Tutorials > Communication Processor Module in Siemens PLC

Communication Processor Module in Siemens PLC

Communication Processor (CP) Module is used to transfer the data in a case of not having the required port on your Siemens PLC CPU.

Last updated: March 4, 2021 11:14 am
Editorial Staff
PLC Tutorials
No Comments
Share
3 Min Read
SHARE

In this article, you will learn about the CP (Communication processor) module used in the Siemens PLC.

CP module is used to transfer the data in a case of not having the required port on your CPU.

Communication Processor Module

For example, we have a redundant system installed in a plant. We have an S7-300 series of CPU 315-2DP is installed.

On the first rack, we have power supply and CPU is installed, the same way for redundancy one more CPU with power supply is installed.

On the second rack, two IMs are installed as you can see in the below window.

Communication Processor Module in Siemens PLC

Now, both CPUs are communicating with IMs through the PROFIBUS-DP network.

But how the 1st CPU will exchange the data with the 2nd one? First, you may think of the second MP (Multi-Point Interface) to exchange the data.

But as you know MPI is a very slow network and it is not possible to send out a large amount of the data using this network.

If you use MPI to exchange the data then you only have to use the MPI network throughout the communication.

But I want to communicate or exchange the data in terms of the PROFIBUS-DP network.

To do that we have to install Simatic NET or CP having DP port on it into the rack beside the CPU as you can see in the below window.

As you can see by pulling one more PROFIBUS-DP cable with the help of the CP module and using some software arrangement you can exchange the data.

Siemens CP Module

The CP module which I have shown you contains a single DP port is a CP 342-5.

There are other types of CP modules that are used that depend on an application and requirement of the network.

Other CP modules for an example are,

* CP 342-5

* CP 1243-8

* CP 343-1

* CP 443-1

* CP 342-2

Below is the image of each type of module having a different capability of communication. (PROFIBUS-DP, Ethernet, ProfiNet, etc.)

Whatever module you use, the connection technique remains the same. only the way and speed of the data exchange will differ based on the requirement.

Author: Suhel Patel

If you liked this article, then please subscribe to our YouTube Channel for PLC and SCADA video tutorials.

You can also follow us on Facebook and Twitter to receive daily updates.

Read Next:

  • Power Supply Circuits
  • Connect to the Siemens PLC
  • Digital Signals and Gates
  • What is the DDE Protocol?
  • Pulse Width Modulation
Don't Miss Our Updates
Be the first to get exclusive content straight to your email.
We promise not to spam you. You can unsubscribe at any time.
Invalid email address
You've successfully subscribed !

Continue Reading

How to Use Symbol Factory Software for Graphic Design in HMI or SCADA?
Medium-Level PLC Exercise for Students in Automation
FC Function in Siemens PLC
Difference Between Normal Counters and Fast Counters – Learn PLC
PLC Scan Time
What are Faceplates? How to Create a Faceplate? HMI Visualization
Share This Article
Facebook Whatsapp Whatsapp LinkedIn Copy Link
Share
Leave a Comment

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Stay Connected

128.3kFollowersLike
69.1kFollowersFollow
210kSubscribersSubscribe
38kFollowersFollow

Categories

Explore More

#4 PLC Best Practices – Use PLC Flags as Integrity Checks
Finding the Best PLC for Your Project – Tips and Tricks
Feedback Monitoring in Safety PLC
What are High-Speed Inputs in PLC?
Concept of Latching in PLC
80+ PLC MCQ Questions
#15 PLC Best Practices – Safe State when PLC Restarts
How to Run Multiple Motors with a Single VFD?

Keep Learning

PLC Program to Separate Different Size Objects

PLC Program to Separate Different Size Objects

PID block from the PLC library

How to Configure PID Controller in Various Schneider PLCs?

PLC programming for liquid mixing application code

PLC Mixing Logic in Liquids on EcoStruxure Machine Expert-Basic

SCADA Engineer

SCADA Engineer Job Responsibilities and Skills

Star-Delta PLC programming with 1 button

How to Program a Star-Delta System using 1 Button in PLC?

Industrial Networking Interview Questions

Industrial Networking and Wireless Interview Questions

PLC analog input scaling

PLC Analog Input Scaling

SCADA

Top 100+ SCADA Questions

Learn More

Flow Meter Calibration Procedure

Flow Meter Calibration

Advanced Process Control

What is Advanced Process Control (APC)?

Digital Electronics Multiple Choice Questions

Parity Generators Objective Questions

Ultrasonic-Level-Transmitter-Animation

Ultrasonic Level Transmitter Animation

Global Data Blocks in PLC

What is a Data Block? Global Data Blocks in PLC

Digital Electronics MCQ

Logic Gates and Networks Multiple Choice Questions

What is meant by a SCADA System

Troubleshoot the Status of a PLC Via CPU Indicators

Piping and Instrument Drawing

Difference between PFD and P&ID with Example

Menu

  • About
  • Privacy Policy
  • Copyright

Quick Links

  • Learn PLC
  • Helping Hand
  • Part Time Job

YouTube Subscribe

Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Welcome Back!

Sign in to your account

Username or Email Address
Password

Lost your password?