Detailed descriptions
16.4 BIOS-Setup
SIMATIC HMI IPC677C
Operating Instructions, 04/2013, A5E02722710-04
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16.3.2.5 Addresses used by SRAM
The battery-buffered SRAM uses a 2 MB memory address area that can be read via the PCI
register.
The address area is dynamic and is set by the BIOS during the enumeration. The base
address of the SRAM can obtained either using the resource information of the Device
Manager (device name: Standard RAM Controller) or in the PCI configuration address area
from the device with device ID "110Ah, VendorID 4040h" and Offset "10h"
16.3.2.6 Accessing addresses of LEDs, watchdog and battery status
These addresses cannot be accessed directly.
SIMATIC PC DiagBase software provides the DMAPI programming interface for this
purpose. It can be found:
● On the "Documentation & Drivers" DVD in the folder "Drivers\DiagBase\program
files\Siemens\DiagnosticManagement"
● In the installation directory under
"%ProgramFiles%\Siemens\DiagnosticManagement\DMAPI"
16.4 BIOS-Setup
16.4.1 Overview
BIOS Setup program
BIOS SETUP allows you to set the hardware configuration, and system properties. SETUP is
also used to set the time and date of the realtime clock.
Changing the device configuration
Your device configuration is preset for operating with the included software. You should only
change the default values if you have modified the technical configuration your device, or if a
fault occurs when the unit is powered up.
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