Siemens SIMATIC PC 670 Equipment Manual page 162

Hardware Information
Connection of an LS240 drive
The optional LS240 drive is connected via this port. This port is connected in
parallel to 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 Short Name
No.
1 Reserved
2 Reserved
3 reserved
4 GND
5 RESET
6 D8
7 D7
8 D9
9 D6
10 D10
11 D5
12 D11
13 D4
14 D12
15 D3
16 D13
17 D2
18 D14
19 D1
20 D15
21 D0
22 DREQ
23 GND
24 IOR_N
25 IOW_N
26 GND
27 IORDY
28 DACK_N
29 irq15
30 AD_1
31 AD_0
32 AD_2
33 CS_N
34 HDACT_N
35 CS1_N
36 CSEL
37 GND
38 P5V
39 P5V
40 P5V
41 P5V
7-30
Meaning
Reserved
Reserved
Reserved
Chassis ground
Reset
Data signal D8
Data signal D7
Data signal D9
Data signal D6
Data signal D10
Data signal D5
Data signal D11
Data signal D4
Data signal D12
Data signal D3
Data signal D13
Data signal D2
Data signal D14
Data signal D1
Data signal D15
Data signal D0
DMA request
Chassis ground
Read signal
Write signal
Chassis ground
Ready signal
DMA confirmation
Interrupt signal
Address line 1
Address line 0
Address line 2
Selection signal
Activity
Selection signal 1
Selection signal
Chassis ground
+5V power supply
+5V power supply
+5V power supply
+5V power supply
Panel PC 670 Computing Unit, Equipment Manual
Release 04/02
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