The CPU card is the system’s central unit and contains the fire and gas system, flash memory, a buffered static RAM, a watchdog circuit and an Ethernet controller with an RJ 45 Ethernet output connector. The CPU card can be used in either single or redundant configuration with two CPU’s operating in parallel. Both CPU’s process information, but only one is the primary. Once the primary CPU stops operating, the other immediately takes over without disrupting ongoing operations or losing captured events. In addition to the micro-controller, the card has a flash memory, a buffered RAM, a watchdog circuit and an Ethernet controller with an RJ 45 Ethernet output connector.
Applicable for fault-tolerant
After activating second CPU , automatically will be set.
256 Kbytes RAM
64 Mbit SDRAM
2 Mbyte expandable flash memory
Ethernet 10/100 link via RJ 45
Watchdog external to CPU, for software functional cycle monitoring
Fault self-check on the hardware
Built-in clock with lithium battery
Operating system residing in internal flash memory
On-line transfer of configuration program
Front plug-in, with locking screws