Siemens SIMEAS R-PMU, Manual, Page: 25 / 296

4
4.2 Central Processing Module (CPU)
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Digital Fault Recorder, SIMEAS R-PMU, Manual
E50417-H1076-C360-A5, Release 10.2012
4.2 Central Processing Module (CPU)
The central processing unit (CPU) communicates with the DAUs, stores data on the mass stor-
age device (flash disk) and ensures the synchronization of the complete device. The core of the
module is a 32-bit processor.
Figure 4-2 Central processing module (CPU)
The operating system and the parameterization and management data are stored on the mass
storage device. The mass storage device configuration is parameterized with OSCOP P. This
defines how the memory areas are used for the operating system and the individual recorders.
The memory areas are reserved as follows:
‰
Operating system
‰
Transient Analog Recorder (TAR)
‰
Transient Phasor Recorder (TPR)
‰
Continuous recorders for system and process variables (CR)
‰
Event recorder (ER) for binary channels
Two interface controllers control the communication with the connected assemblies. This
includes one controller for supporting the front and rear serial interfaces and the parallel inter-
face. The front interface is intended as a service interface. An additional controller supports the
LAN connection.
The module is equipped with four voltage-free relay outputs, three of which can be parameter-
ized for status signaling. The first relay is reserved for the life contact functions.
Furthermore, the central processing module has four control inputs available for application spe-
cific uses. The signals from the time synchronization unit are also forwarded to the CPU using
one control input.