Accelerator Controls & Beam Diagnostics Division
FPGA Based ECM

Salient Features

  • Reconfigurable Xilinx Spartan FPGA with 144 I/O points.
  • Two isolated Analog input output channel configurable in the range of 0-5/10 V.
  • 4 potential free contacts and 8 optical digital I/Os are present to interface with external system.
  • Three communication ports - RS232, RS485 and optical fibre (dual purpose i.e can be used for communication or synchronization with external event) are present.
  • On-board diagnostics and testing of FPGA I/O logic.
  • 8 interlock input signals with hard-wired trip action.
  • Programmable baud rate from 9.6 to 230.4kbps.

Specifications

  • Xilinx Spartan 3 series FPGA as main controller.
  • 2-Isolated Channels of 16 bit ADC.
  • 2-Isolated Channels of 16 bit DAC.
  • Three communications interfaces: RS232, RS485 and optical fibre interfaces.
  • 4 potential free I/O and 8 digital I/O.
  • 8 Interlock and local hard-wired gating.
  • Provision for accommodation of new requirements.

Applications

  • It is being used as a Main control unit for supervisory and monitoring of various sub-systems in Microtron.
  • It can be used to convert from one custom protocol to another protocol over serial link.
  • It can be used to store data for diagnostics purpose based on an event.

FPGA Based ECM  
Figure1: FPGA Based ECM [Full Size Image]  
 
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