Hardware Information

Connection for LS240 Drive

The optional LS240 drive is connected via this port. This port is connected in parallel with the secondary IDE port. The connected LS240 drive is automatically master (i.e. bootable drive) as the result of a special RC circuit. The maximum connection length of the data cable may not exceed 40cm.

Pin No.

X31

Meaning

1

RESET Reset

2GND

3D8 Data signal D8

4D7 Data signal D7

5D9 Data signal D9

6D6 Data signal D6

7D10 Data signal D10

8D5 Data signal D5

9D11 Data signal D11

10D4 Data signal D4

11D12 Data signal D12

12D3 Data signal D3

13D13 Data signal D13

14D2 Data signal D2

15D14 Data signal D14

16D1 Data signal D1

17D15 Data signal D15

18D0 Data signal D0

19GND

20

DREQ

DMA Request

21

GND

 

22

IOW_N

IO Write

23

GND

 

24

IOR_N

I/O Read

25

GND

 

26

IORDY

I/O Ready

27Reserved

28DACK_N DMA Acknowledge

29TBD

30GND

31Reserved reserved

32

IOCS16

I/O Chip Select 16

33

AD_2

Address 2

34

AD_1

Address 1

35

CS3_N

Chip Select 3

36

AD_0

Address 0

37HDACT_N HD active

38CS1_N Chip Select 1

39TBD

40

P5V

+5V power supply

41

P5V

+5V power supply

SIMATIC Box PC 620 Manual

7-29

A5E00131465-01

Page 161
Image 161
Siemens 620 appendix Connection for LS240 Drive, Pin No X31 Meaning