Functional Description

The IS215UCVEH2AF is a VME board developed by GE. It is part of the Mark VI control system. This single-slot VME (Versa Module Eurocard) board plays a vital role in the operation of the control system. The system utilizes a 300 MHz Intel Celeron microprocessor with 32 MB of DRAM memory. It offers flexibility between 16 MB or 128 MB compact flash modules. In addition, the system includes a 128 KB L2 cache for faster data access. To support the controller functions, an 8K battery-powered SRAM is allocated for use as the NVRAM in the system architecture.

Primary Ethernet Interface (Ethernet 1)

The primary Ethernet interface (Ethernet 1) on this system has the following specifications:

Connection type: Twisted pair 10BaseT/100BaseTX technology and RJ-45 connectors allow for a variety of connection options.

Communication protocol: TCP/IP protocol: Primarily used for communication between the controller and the toolbox, ensuring seamless data exchange within the system.

EGD Protocol: Designed to communicate with CIMPLICITY HMIs and 90-70 series PLCs (Programmable Logic Controllers), facilitating efficient and reliable data transfer.

Ethernet Modbus Protocol: Supports communication between the controller and third-party DCS (Distributed Control System), providing compatibility and integration across different systems.

COM ports

The system contains two miniature 9-pin D connectors dedicated to COM ports:

COM1: Function: Dedicated for diagnostic purposes, maintains a baud rate of 9600 with data configuration set to 8 data bits, no parity and 1 stop bit.

COM2: Purpose: Dedicated for serial Modbus communication, supports variable baud rates of 9600 or 19200. This port facilitates efficient and reliable communication of Modbus related data transactions.