Technical data

Hardware Information
6-32
SIMATIC Panel PC 670 Computing Unit Equipment Manual
Edition 12/01
Assignment of the IDE ports (X3, X4, X41)
The primary IDE port is designed for alternatively installing 2.5” and 3.5” hard
disks. 3.5” drives are connected by means of a 40-pin 2.54 mm pitch connector
and 2.5” drives by means of a 44-pin 2 mm pitch connector. The two connectors
are connected in parallel. The secondary IDE port is provided for the optional
connection of a CD-ROM and/or an LS 120 drive. It can be adapted using a 44-pin
2 mm pitch connector. The maximum connection length of the data cables must
not be longer than 40 cm.
Pin X41 X4/X3 Meaning Pin X41 X4/X3 Meaning
1 RESET Reset 23 IOW_N IO Write
2 GND 24 GND
3 D7 Data signal D7 25 IOR_N I/O read
4 D8 Data signal D8 26 GND
5 D6 Data signal D6 27 IORDY I/O ready
6 D9 Data signal D9 28 Reser-
ved
CSEL Master/slave
7 D5 Data signal D5 29 DACK_N DMA Acknowledge
8 D10 Data signal D10 30 GND
9 D4 Data signal D4 31 IOCS16 I/O Chip Select 16
10 D11 Data signal D11 32 9
11 D3 Data signal D3 33 AD_1 Address 1
12 D12 Data signal D12 34 Reserved Reserved
13 D2 Data signal D2 35 AD_0 Address 0
14 D13 Data signal D13 36 AD_2 Address 2
15 D1 Data signal D1 37 CS1_N Chip Select 1
16 D14 Data signal D14 38 CS3_N Chip Select 3
17 D0 Data signal D0 39 HDACT_N Data signal D0
18 D15 Data signal D15 40 GND Data signal D15
19 GND 41 P5V +5V power supply
20 9 Code 42 P5V +5V power supply
21 DREQ DMA Request 43 GND
22 GND 44 Reser-
ved
Reserved