HIMA HIMax X-CPU 01 User Manual

X-CPU 01 3 Product Description
HI 801 009 E Rev. 4.00 Page 13 of 52
3.4.2 Safety-Related Processor System
The safety-related processor module is a 1oo2 processor system. Continuous self-tests
ensure safety-related operation.
Characteristics:
 Two synchronous microprocessors
 Specific DDRAM memory for each microprocessor
 Testable hardware comparator for data buses
 Watchdog (WD)
 Gold capacitor for buffering date/time
 LEDs for indicating the system statuses
 Mode switch for configuring the module behavior when voltage is switched on
The processor module compares the data on both processors and triggers an interrupt if a
fault occurs.
A watchdog monitors both processors. Self-tests of the module also check the watchdog.
3.4.3 System Controller
The system controller handles the entire data transfer between the various components of
the module:
 Safety-related processor system
 System busses A and B
 Ethernet switch with connected interfaces
3.4.4 Memory
The module has a RAM and a non-volatile memory. The non-volatile memory is protected
by a CRC.
The non-volatile memory contains the following programs and information:
 Operating System
 User project
 Enable switch, watchdog time, safety time
 Online modifications
 Variable with the RETAIN attribute
 Production data and, if necessary, trimming data
 Fault status history
 Events
While booting, the system transfers the program code from the non-volatile memory to the
redundant program and data memory.
3.4.5 Alarms and Events
The processor module records alarms and other events in its non-volatile memory.
Events are state changes of a variable that are performed by the plant or controllers and
are provided with a timestamp.
Alarms are events that signalize an increasing risk potential.
The HIMax system records the state changes as events specifying the time point when they
occurred. The X-OPC server transfers the events to other systems such as control
systems, that display or evaluate the events.
HIMax differentiate between Boolean and scalar events.

HIMA HIMax X-CPU 01 Specifications

General

Brand	HIMA
Model	HIMax X-CPU 01
Category	Computer Hardware
Language	English