FS-USI-0001 | Honeywell Universal Interface Module

The USI-0001 communication module handles Ethernet and Serialcommunication with external devices, e.g. Experion™ PKS and Safety Builder. It is located in the Controller chassisFurthermore, the USI-0001 communication module acts as hardware firewall,protecting the safety functions within Safety Manager.The module consists of the following items:• A Motorola 8260 communication processor.• EEPROM to store specific module data, such as the two MAC-addresses and the hardware revision number.• 8 Mbyte Flash memory to store the system and application program. The flash content is copied to SRAM at startup and is executed from there. The flash content can be updated without removing the USI-0001 from the Controller chassis.• 4 Mbyte Local SRAM (with Error Detecting and Correcting logic) for system and application program and information.• 256 kilobyte shared RAM for data exchange between the USI-0001 and the Control Processor.• Two dual-speed fast ethernet transceivers• Two general purpose serial communication controller channels.