Hotfixes And Security Updates; Partitioning; Setting The Maximum Transmission Unit (For Pcs 7 Only); Enabling/Disabling Time Synchronization - Siemens SIMATIC IPC427E Produktinformation

Hotfixes and security updates

The Restore package contains Microsoft security patches up to and including October 12, 2021.
To avoid the installation of incompatible updates, the local group policy for the following option has been set to "Disabled":
"Policies for local computer > Computer Configuration > Administrative Templates > Windows Components > Windows
Update > Configure Automatic Updates". Depending on the information on this product available on the Support pages, you
are required to always request and install Windows Updates manually on your system.

Partitioning

Note
Risk of data loss
Changing the size of system and data partitions can result in problems when restoring the restore images and thus in a loss of
all data on the drives.
Do not change the size of the system and data partitions.

Setting the Maximum Transmission Unit (for PCS 7 only)

For PCS 7 operation, the size of the MTU (Maximum Transmission Unit) for IPv4 is set from 1500 bytes to 1494 bytes. This
setting is necessary for use of the "Parallel Redundancy Protocol" (PRP) in connection with IPv4. On the USB stick, you will find
auxiliary programs and a description for adjusting the MTU setting of your system in the folder "Additional_Products\MTU".

Enabling/disabling time synchronization

Time synchronization with an Internet server is enabled in the Control Panel.
When time synchronization is enabled, an entry may be generated in the event display. This entry can be cleared by disabling
time synchronization.
1. Select "Control Panel > Date and Time > Internet time" tab
2. Disable the option "Synchronize with an Internet time server".
3. Confirm your entries.
Before entering the device into a domain, you should enable time synchronization once again. You can find information on
this in the section: Entering a SIMATIC Industry PC in a domain (for PCS 7 only) (Page 18).

Interfaces and connections (for PCS 7 only)

Ethernet interfaces
The Ethernet interfaces in the device are preset to DHCP. If you are not running a DHCP server, configure the IP addresses
manually.
For PCS 7, it is recommended to use the Ethernet interfaces as follows:
• Onboard Ethernet interface "X1P1": Terminal bus 1
• Onboard Ethernet interface "X2P1": Reserve
• Onboard Ethernet interface "X3P1": Plant bus 1
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SIMATIC IPC427E/477E
A5E51584612-AA , 01/2022