Configuring Devices - PLC
The Programmable Logic Controller (PLC) is an industrial computer used for real-time monitoring and control of equipment. In Packet Tracer, the PLC device is typically accessed over the network from a PC running the PT Industrial Automation App.
To get started, install the PT Industrial Automation App on your PC.
Connect the PLC to the network and assign it an IP address that the PC can access.
Launch the PT Industrial Automation App on the PC.
The PT Industrial Automation App on the PC enables you to discover and configure PROFINET devices on the network, update firmware, and program the PLC using Ladder Logic.
The PLC can also be extended to handle communication specific OT protocols like OPC-UA, CIP, Modbus, and IEC-61850 protocols using the Programming tab.
The PLC can also be extended to support communication-specific OT protocols such as OPC-UA, CIP, Modbus, and IEC-61850 using the Programming tab.
| Sample File |
Description |
latching-with-plc.pka |
In this lab, you will create a light latch. When you press the "start" button, the light turns on and remains lit even after you release the button. The light will only turn off when you press the "stop" button. |
timer-plugin.pka |
This activity demonstrates how to use a Timer control block in a PLC. |
up-counter-plugin.pka |
This activity demonstrates an UP Counter control block in the PLC. Each time the input changes from OFF to ON, the counter’s ACC value increases by 1. The ACC value is assigned to a coil and output to terminal A1. An LCD is connected to display this value. |
Current Modeling Limitations
The PLC is built on the MCU/SBC architecture and shares its model limitations. It simulates only logical operations—not electrical properties such as current flow, voltage drops, or wiring faults.
The PLC supports up to 6 digital ports and 10 analog ports.
It is a generic model and does not represent any specific PLC hardware.