Buffer Memory Mram; Operation Without Monitor And Keyboard; Active Management Technology (Amt) - Siemens SIMATIC IPC427D Operating Instructions Manual

Extended device functions

5.4 Buffer memory MRAM

5.4 Buffer memory MRAM
The motherboard is equipped with an MRAM that applications can use to back up data in the
event of a power failure. Failure of the supply voltage for a duration longer than 5 ms is
indicated by the DC FAIL signal.
Depending on the system utilization, up to 512 KB can be saved in the MRAM.
A memory window with a maximum size of 512 KB can be displayed by means of PCI
address register. The base address is initialized by the BIOS.
A corresponding function is implemented in BIOS to enable the use of MRAM in WinAC
RTX.
5.5

Operation without monitor and keyboard

The device can be operated without a monitor and keyboard. The device startup is
guaranteed without these peripherals. A USB keyboard and mouse and an analog CRT
monitor can be later connected for diagnostics.
A digital DVI monitor or DisplayPort monitor cannot be activated retrospectively unless the
Windows Embedded Standard or Windows 7 Ultimate operating system has completed
booting.
5.6

Active Management Technology (AMT)

AMT (Active Management Technology) is technology for the remote maintenance of
computers (simply called AMT-PC in the remainder of the document) and it includes the
following functions:
● Keyboard Video Mouse( KVM) Redirection: Using KVM that is integrated in the AMT
hardware you access the AMT PC remotely. With KVM, you can also control AMT PCs
that have no operating system or a defective operating system. A KVM remote session is
always possible with the KVM server integrated in the firmware. This means you can
restart the PC and change the BIOS setup remotely.
● Remote power management: AMT PCs can be turned on and off and restarted from
another PC.
● SOL (Serial over LAN): Redirection of the data of a serial interface to the network. The
main use of the function is text-based remote control of an AMT PC using a console.
● IDE redirection: An ISO file on the help desk PC can be mounted on the AMT PC and
used as a DVD drive.
An ISO file contains a memory image of the content of a CD or DVD structured in the ISO
9660 format.
● Remote reboot: An AMT PC can be booted from a bootable ISO file made available by
another PC.
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Operating Instructions, 05/2017, A5E31347215-AB
SIMATIC IPC427D