Once you have downloaded the correct .upd files to your computer, choose one of the three following methods to apply the update to the PLC. Method A: Updating via TIA Portal (Most Common)
Enable the Web Server in the CPU properties within and assign "Perform firmware update" permissions to a user. Open your web browser and enter the CPU’s IP address. Log in with your configured user credentials. Navigate to the Module Information page and select the CPU.
Always take a full upload/backup of the existing PLC program and hardware configuration before executing a firmware change. s7-1500 firmware download
Check the box and click Start update .
Click the button under the "Firmware loader" section and locate your downloaded .upd file. Once you have downloaded the correct
Open your project in and connect to your target PLC. Switch to Online Access or Online & Diagnostics . Under the Functions menu folder, select Firmware update .
Check whether the latest firmware version matches the hardware functional state (FS) printed on your CPU's nameplate. TIA Portal: S7-1200 and S7-1500 CPU Firmware Upgrade Log in with your configured user credentials
Insert a SIMATIC Memory Card into your computer's card reader.
When finished, power down, remove the card (or delete the firmware files if using it as a program card), and restart the CPU. Method C: Updating via the CPU Web Server