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Port for Floppy Disk Drive, X26
This port is intended for the connection of a standard floppy disk drive. The
maximum connection length of the data cable may not exceed 40 cm.
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
SIMATIC Box PC 840 Manual
A5E00085984-04
Designation
Description
GND
Ground
DENSEL
High Density Disk selection
GND
Ground
-
Unassigned
GND
Ground
DRAME0
Data rate signal
GND
Ground
INDEX_N
Index hole recognition
GND
Ground
MOT_N0
Activate motor 0
GND
Ground
DS_N1
Drive 1 selection
GND
Ground
DS_N0
Drive 0 selection
GND
Ground
MOT_N0
Activate motor 1
GND
Ground
DIR_SL_N
Step motor direction
GND
Ground
STEP_N
Step motor pulse
GND
Ground
WR_DAT_N
Write data signal
GND
Ground
WR_GAT_N
Enable data signal
GND
Ground
TRACK_N0
Track 0 signal
GND
Ground
WR_PRT_N
Write protection signal
GND
Ground
RD_DAT_N
Read Data signal
GND
Ground
SIDE_1_N
Page selection
MED_ID1
High Density Disk recognition
DCHG_N
Disk change display
Hardware Information
Input / Output
-
Output
-
-
-
Output
-
Input
-
Output
-
-
-
Output
-
Output
-
-
Output
-
Output
-
Input
-
Input
-
Input
-
Output
Input
Input
7-25

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