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TYPES OF Siemens plc communication ports

Jenis Port Komunikasi untuk Siemens PLC
Reference Link : https://instrumentationtools.com/cpu-communication-ports/

In this article, we will study about the types of CPU communication port that is available on the Siemens PLC.
Without communication field devices, network switches, HMI, PLC can’t talk to each other so communication is a necessary part of any control system.

CPU Communication Ports
Picture
Siemens S7-300 PLC
In the Siemens PLC, we have several types of ports are available to communicate with other devices.
Let’s analyze and differentiate each type of communication port.:- *scroll below..

1. DP (decentralize peripheral):

Picture
MPI Cable
Another communication port looks the same as MPI as this also used RS-485 communication protocol.
DP port provides an even higher data transfer rate than an MPI port.
You can connect another automation facility like VFD, Interface module, etc.
Using the DP network one can transmit data remotely. For example, a distance from the field to the control room is far then instead of pulling wires all the way the field to control room, you can transfer all the I/Os to the field and can pull a single PROFIBUS-DP cable to communicate with the I/Os.
You can connect up to 128 devices on a single network.

2. MPI (Multi-Point Interface):

Picture
RS485 Cable
MPI port is used RS-485 communication protocol.
We use the MPI port when we have to transfer an existing program to the PLC. We can achieve it by connecting it with a PC adapter.
You can connect CPU with an HMI; this way data can easily transfer to the HMI.
You can also connect with another automation facility.

3. PTP (Precision Time Protocol)

Picture
RJ45 Cable
It uses RJ45 (Register Jack) network interface to communicate with other facilities.
It uses the IEEE 802.3 standard to communicate.
Provide a faster data transfer rate than the PROFIBUS-DP network.
You can connect it with an HMI from Laptop to transfer the data.
ProfiNet is used where data needs to transfer at a very higher rate like in motion control application.
Ethernet can be used in the normal application except for motion control.
I hope you may have a clear idea about ports are available on the CPU of Siemens PLC.
Still, doubts in mind? Then dont hasitate to whatsapp Mr.Thivyan ( +60146016598 )

Reference Link : https://instrumentationtools.com/cpu-communication-ports/

In AS Automation Services , we provide detailed , fully equipped with PLC hardware , software & laptop for cheapest price possible and we also provide one-to-one training

For more info contact Mr.TSoon or Whatsapp @ +60163329691

Picture
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​NO 9-01, JALAN PERTAMA 5, PUSAT PERDAGANGAN DANGA UTAMA, 81300, JOHOR BAHRU, JOHOR, MALAYSIA. 
TEL : 607-5596470

email: [email protected]

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Copyright © 2012-2026  AS Automation Services(MY) & AS Automation System Training Centre P.L.T. All Rights Reserved.

  • Home
  • Training
    • Request for Quote
    • InHouse Training
      • PLC HMI SCADA Training
        • Siemens
          • Siemens TIA Portal Advance
          • Siemens TIA Portal Inter
          • Siemens TIA Portal IIOT
          • Siemens SM5.6 Advance
          • Siemens SM5.6 Inter
        • Mitsubishi
          • Mitsubishi FX-5U GXW3 Adv
          • Mitsubishi FX-5U GXW3 Inter
          • Mitsubishi FX3S GXW2 Advance
          • Mitsubishi FX3S GXW2 Inter
          • Mitsubishi FX3G Series Servo
        • Omron
          • Omron C Series Advance
          • Omron C Series Inter
          • Omron NX Series Advance
          • Omron NX Series Inter
        • Allen Bradley
          • Allen Bradley RSLogix5000 Advance
          • Allen Bradley RSLogix5000 Inter
          • Allen Bradley MicroLogix CCW 3 Days
        • Keyence
          • Keyence KV Series PLC Adv
          • Keyence KV Series PLC Inter
        • Schneider
          • Schneider Machine EXpert Inter
        • GE Fanuc
          • GE Fanuc Series 90-30 Advance
          • GE Fanuc Series 90-30 Inter
      • Microsoft Excel Training
    • Online Training
  • Product & Services
    • Software Support
    • PLC, HMI & Industrial Products
      • Siemens Industrial Parts
      • Allen Bradley Industrial Parts
      • Omron Industrial Parts
      • Mitsubishi Industrial Parts
      • Schneider Industrial Parts
      • Other Brand Industrial Parts
    • Industrial Automation Repair & Services
    • PLC & HMI Training Kits
    • Automation & Control Panels
  • PLC Info
    • Confident PLC Programmer
    • PLC Is Dead ?
    • Know PLC
      • What is PLC
      • Difference Between PLC & DCS
      • Difference Between SCADA and HMI
      • Top 15 PLC brands
      • Popular PLC Language
      • Modular PLC vs Compact PLC
      • PLC Power Supply Safety
      • PLC Projects
      • IIoT and PLC
      • Top 11 reasons why you still need a PLC
      • Siemens PLC Com Port Types
    • Automation Info
      • The Solution for Malaysian in Automation Fear
      • PLC Job Scopes Demand in Malaysia
      • PLC Online vs Onsite Training
    • Industrial Info
      • Industrial Applications with PLC
      • Project Plan for Panel
      • FLUKE Processmeter for PLC
    • Safety First
      • Safety Relays PNOZ(PILZ)
      • Working Principle of PLC
      • Wiring Practices
      • PLC Control System Failures Top Reasons
      • Do’s and Don’ts in PLC
      • Static Survey of PLC Programming
    • SKIM BANTUAN LATIHAN / SBL (HRDC)
    • SKIM BANTUAN LATIHAN KHAS / SBL-KHAS (HRDC)
  • Blog
  • About Us
    • Legal Terms
      • Terms and Condition
      • Training Apply Terms
      • Privacy Policy
      • Copyright Notice
      • Calender (Locked)
    • Join Us
    • Black Listed Client
  • Contact Us
  • Client Review