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2. EXPLANATION OF MODULE FUNCTIONS

2.8 HR865 Card

II - 13

2.8 HR865 Card

[Block diagram]

Rotary switch, setting, etc.

EEPROM

SRAM

CPU

CC-Link
master
gate
array

RTBUS

2-port
RAM

Gate
array for
bus I/F

DC/DC

Terminal
block

PLD

PROM

[Explanation of functions]

The HR865 card functions as the CC-Link's master/local station.

CPU 16bitCPU
ASIC

Gate array for bus interface

CC-Link master gate array

Memory 2-port

RAM

SRAM

System

ROM

PROM

Work

RAM

SRAM

EEPROM

Various setting switches
LED

[Connector layout diagram]

RTBUS

STATION NO. B_RATE

×10

×1

TE1

MODE

LED1