Hardware Information
Release 11/02
7-23
SIMATIC Panel PC 870 Computing Unit, Equipment Manual
Assignment of the IDE ports (X7, X10)
The primary IDE port is designed for alternatively installing a 3.5” hard disk
(connection via a 40-pin 2.54 mm pitch connector). The secondary IDE port is
provided for the optional connection of a CD-ROM (connection via 44-pin 2 mm
pitch connector. Maximum connection length of the data cables: 40 cm.
Pin
No.
Short Name X7
Meaning
Input/
Output
1
RESET
Reset signal
Output
2
GND
Ground
-
3
D7
Data signal D7
4
D8
Data signal D8
5
D6
Data signal D6
6
D9
Data signal D9
7
D5
Data signal D5
8
D10
Data signal D10
9
D4
Data signal D4
10
D11
Data signal D11
11
D3
Data signal D3
Input/output
12
D12
Data signal D12
13
D2
Data signal D2
14
D13
Data signal D13
15
D1
Data signal D1
16
D14
Data signal D14
17
D0
Data signal D0
18
D15
Data signal D15
19
GND
Ground
-
20
NC
Not Connected
–
21
DREQ
DMA request
Input
22
GND
Ground
-
23
IOW_N
Write signal
Output
24
GND
Ground
-
25
IOR_N
Read signal
Output
26
GND
Ground
-
27
IORDY
Ready signal
Input
28
Reserved
Reserved
–
29
DACK_N
DMA confirmation
Output
30
GND
Ground
-
31
IRQ
Interrupt signal
Input
32
NC
Not Connected
–
33
AD_1
Address line 1
Output
34
Reserved
Reserved
–
35
AD_0
Address line 0
36
AD_2
Address line 2
37
CS1_N
Selection signal 1
Output
38
CS3_N
Selection signal 3
39
HDACT_N
Hard disk activity
Input
40
GND
Ground
-
Summary of Contents for Simatic PC Panel PC 870
Page 4: ...Chapter For your notes ...
Page 12: ...Contents Release 11 02 xii SIMATIC Panel PC 870 Computing Unit Equipment Manual ...
Page 94: ...Fault Diagnosis Release 11 02 6 10 SIMATIC Panel PC 870 Computing Unit Equipment Manual ...
Page 130: ...Hardware Information Release 11 02 7 36 SIMATIC Panel PC 870 Computing Unit Equipment Manual ...
Page 154: ...Index Release 11 02 Index 4 SIMATIC Panel PC 870 Computing Unit Equipment Manual ...