3-20
Driving the Display
PX 30 and PX 120 Operating Manual
Special Mode
PX 120 23 22 21 20 16
0
1
7
0
Special Function Code
PX 30 15 14 13 12 8
y
5
y
y
y
y
y
0
Special Function Code
Function
binary
hexadecimal
000000
00
Not occupied
000001
01
Segment test on
000010
02
Segment test off
000011
03
Output version number
000100
04
Auto-display of text memory contents - on
000101
05
Auto-display of text memory contents - off
000110
06
Clear display
000111
07
Status display - on
Please refer to page 3-11 for details of the special functions.
The function and layout of inputs in special mode is the same for binary as for BCD-
mode.
Parallel Drive through a PLC's I/O-Level
Monitor Mode
Monitor mode is active when input E23 (PX 120) or E15 (PX 30) is high. Input E22 or
E14 (handshake input; enable signal) and the HS output (handshake) are used to drive
the handshake algorithm. Inputs E0 ... E15 (PX 120) and E0 ... E7 (PX 30 or PX 120 in
16-input mode) are data inputs.
Function and Layout of Inputs
24 Inputs (PX 120)
23 22 21 20 19 18 17 16
1
7
0
Data Inputs
15 8
Control Inputs
s
s
Input
15
14
13
12
11
10
8
23
22
21
20
19
18
16
7
23 22
21 20 19 18
17
16 15
8
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