3-18
Driving the Display
PX 30 and PX 120 Operating Manual
Variable Mode
ASCll-Coded Transmission
? = 1
Inserts "?"; flashes alternately with the lowest value digit of the
variable value
? = 0
"?" not inserted
_ = 1
Inserts "_"; flashes alternately with the lowest value digit of the
variable value
_ = 0
"_" not inserted
If ? = 1 and _ = 1, "?" will be inserted.
"?" or "_" can still be flashed at the point of the lowest value digit even when the variable
value is not transmitted (only in the 1st cycle, when E10/18 and E11/19 = 1).
N = 1
A negative prefix (-) is placed before the variable value
N = 0
Display without negative prefix
The last cycle is indicated when e = 1. A maximum of 10 ASCll-characters per variable is
accepted. The last ASCll-character transmitted is displayed on the right hand side of the
preceding ASCll-characters.
PX 120 23 22 21 20 19 18 16
1
7
0
PX 30 15 14 13 12 11 10 8
0
0
1st cycle
1
?
_
n
n
1
n
Variable Nos.
0 ... 7
0
N
15/23
2nd to 11th cycle
e
1
0
0
7
w
w
w
w
w
0
w
w w
IBM-ASCII-coded character
0
15/23
15
14
13
12
11
10
8
23
22
21
20
19
18
16
7
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