This card is the system's central unit and contains the micro-controller, which processes all the information provided by the other cards of the panel.

In addition to the micro-controller, the card has a flash memory, a buffered static RAM, a watchdog circuit and an Ethernet controller with an RJ 45 Ethernet output connector.

Main Characteristics

• Can be hot-swapped
• Suitable for applications fault-tolerant up to SIL3 level in accordance with IEC-61508
• Designed to operate in parallel (redundancy)
• Automatic set once the second CPU has been put in
• Micro-controller 25 MHz Renesas (HITACHI) H8-2318
• 4-MB(512K X8) buffered static RAM with lithium battery
• 2-MB 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
• Internal CPLD dedicated to the communication management
• Operating system residing in internal flash memory
• On-line transfer of configuration program
• Front plug-in, with locking screws