Siemens 620 사용자 설명서

7-33

SIMATIC Box PC 620  Manual

A5E00131465-01

C1

–SBHE#

O

D1

–MEMCS16#

I

C2

LA 23

I/O

D2

–IOCS16#

I

C3

LA 22

I/O

D3

IRQ 10

I

C4

LA 21

I/O

D4

IRQ 11

I

C5

LA 20

I/O

D5

reserved

I

C6

LA 19

I/O

D6

reserved

I

C7

LA 18

I/O

D7

reserved

I

C8

LA 17

I/O

D8

–DACK0#

O

C9

–MEMR#

I/O

D9

DRQ 0

I

C10

–MEMW#

I/O

D10

–DACK5#

O

C11

SD 08

I/O

D11

DRQ 5

I

C12

SD 09

I/O

D12

–DACK6#

O

C13

SD 10

I/O

D13

DRQ 6

I

C14

SD 11

I/O

D14

–DACK7#

O

C15

SD 12

I/O

D15

DRQ 7

I

C16

SD 13

I/O

D16

+ 5V

V

CC

C17

SD 14

I/O

D17

reserved

I

C18

SD 15

I/O

D18

0 V

GND

#  

low active

Under normal conditions, the signals -SBHE, LA17 - LA23, -MEMR and MEMW
are operated as outputs (sending from the CPU). Only CPU boards which are
suitable for use as a master CPU for system bus access send and receive these
signals. A minus sign “-” in front of the signal name shows that the signal is LOW
active.