ABB CI858 3BSE018135R1 DriveBus Interface Module

Introduction

The CI858 unit consists of a communication expansion base plate board (CEB), a communication expansion module board (CEM), and mechanics. All electronic devices and all functions are located on the CEM board. The CEM board connects via connector X1 to the CEB board, which in turn is connected to the CEX bus.

CI858 Features

• CEX Bus Interface:
  Communication between the CI858 and the AC 800M is implemented through the CEX bus. The CEX bus operates with a clock frequency of 64 MHz. The maximum transfer data is approximately 1.25 MBytes/s.

• DDCS Interfaces for:

  • DriveBus
  • I/O Bus
  • PC Tool

• Power Supply:
  +24 V power supply from the CEX bus.
  DC/DC conversion from +24 V to +5 V, +3.3 V, and +2.5 V.

• Processor:
  Motorola Digital Signal Processor DSP56303 with a 72 MHz CPU frequency.

• FPGA:
  Xilinx XC2S50 FPGA for the CEX bus interface with 94 user I/O pins available on CI858.

• Memory Components:

  • 32 kB boot PROM, AT27LV256, for boot code.
  • 1 MB flash PROM, Am29DL800B, for program code.
  • 768 kB SRAM for program and data memory.

DPRAM Communication

AC 800M and CI858 communicate with each other via dual-port RAM (DPRAM). The DPRAM has the following functionalities:

• Dual-port memory, 32 * 16 kB.
• One interrupt in each direction.
• Eight semaphores, which simplify the utilization of shared resources.
• ONCE port, which can be used for reprogramming the module.

Dimensions Width x Height x Depth

• 59 mm x 185 mm x 127.5 mm (2.3 in.*7.3 in.*5.0 in.)

Weight

• 700 g (1.5 lbs)