PLC to PLC Communication using MODBUS TCP/IP | TIA Portal Full Tutorial
In this video, we will learn how to establish PLC to PLC Communication using MODBUS TCP/IP in TIA Portal with Siemens S7-1200 PLCs.
This tutorial explains complete hardware setup, Ethernet connection, IP configuration, MB_CLIENT and MB_SERVER programming, and real-time data transfer between two PLCs.
✅ Topics Covered in this Video:
Introduction to MODBUS TCP/IP
CLIENT and SERVER concept
Adding two PLCs in TIA Portal
Hardware configuration
IP address setup
Ethernet network connection
Network switch wiring
MB_SERVER configuration
MB_CLIENT configuration
Creating TCON_IP_v4 structure
Data block configuration
Reading & Writing Holding Registers
PLC to PLC data transfer testing
Online monitoring & troubleshooting
Common errors and solutions
🖥️ Hardware Used:
Siemens S7-1200 PLC (CLIENT)
Siemens S7-1200 PLC (SERVER)
Ethernet Switch
Engineering PC / Laptop
TIA Portal V18
🌐 Communication Setup:
PLC_1 (CLIENT) → 192.168.0.1
PLC_2 (SERVER) → 192.168.0.2
PC (TIA Portal) → 192.168.0.3
This video is very useful for:
PLC Beginners
Industrial Automation Engineers
TIA Portal learners
MODBUS TCP/IP beginners
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