Hotfixes And Security Updates; Partitioning; Setting The Maximum Transmission Unit; Enabling/Disabling Time Synchronization - Siemens SIMATIC IPC627D Produktinformation

Hotfixes and security updates

The Restore package contains Microsoft security patches up to and including 12.01.2021.
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 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 Industrial PC in a domain (Page 17).

Interfaces and connections

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
Slots for internal expansion cards
Note
Use the module clamp to secure the expansion cards installed at a later time. We recommend securing the cards in direction
of the device front. When installing the clamp, make sure that you do not damage any of the components on the expansion
cards.
SIMATIC IPC627D/677D
A5E50920299-AA, 05/2021
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