3-12
Driving the Display
PX 30 and PX 120 Operating Manual
Note: Data Inputs E8 ... E15 are not used when the PX 120 is in 16-input mode. Control
inputs are E16 ... E23. Data inputs are E0 ... E7.
Function and Layout of Inputs (general)
Second cycle: low value byte of a signed 16-bit integer. Text numbers from 0 ... 9999
are accepted.
Text Display with 16 Inputs
(PX 30 or PX 120 in 16-Input Mode)
E15 = 0
Display Mode
Enable signal (positive-going pulse edge)
B/S
Operating Mode/Special Mode: 0/0 = Text Mode; 0/1: Special Mode;
1/0 = Variable Mode; (1/1 = reserved)
e
End of data transmission: 1 = last cycle
a
Start of data transmission: 1 = first cycle
s
Scroll inputs (E9 up; E8 down)
Input
15 14 13 12 11 10 9 8 7
B
S
e
a
s
s
0
Control Inputs
Data Inputs
0
Text Mode
Binary-Coding
e
PX 120 23 22 21 20 19 18 16
0
1
7
0
Text Number
PX 30 15 14 13 12 11 10 8
0
0
1st cycle
H H H H H
H
H H
0
In the first cycle, the high value byte of a signed 16-bit integer is transmitted. If only one
cycle is required (for text numbers 0 ... 127), Input e should be a Logic 1 Signal in the first
cycle.
PX 120 23 22 21 20 19 18 16
0
1
7
0
Text Number
PX 30 15 14 13 12 11 10 8
0
0
2nd cycle
L
L
L
L
L
L
L
L
0
15
14
13
12
11
10
9
8
7
15
14
13
12
11
10
8
23
22
21
20
19
18
16
7
15
14
13
12
11
10
8
23
22
21
20
19
18
16
7
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