5.2.2 ASCII data type
In this mode the numeric value will be sent in ASCII code. An advantage of this mode is
that it allows you to send control commands, to intermittency a certain value, as well as select the
color of the digits in the displays with color option.
In the
ASCII
format, as many bytes as digits will be sent in the viewer plus the control
commands that are used, up to a maximum of 20 bytes that is the limit of the assigned internal
buffer.
In this mode, the first byte of the Profinet frame corresponds to the rightmost digit of the
visualizer. Thus, the sequence of bytes will be represented in the digits, in this order:
1. Configuring Display Parameters
Through the keys of the equipment, we enter the menu, and we will configure the parameter
1
, with the value
05
.
The remaining parameters shall be configured in accordance with paragraph 0
2. Sending the message character sequence over the Profinet network
The numeric value of each digit will be encoded in ASCII and sent in the sequence
mentioned above. Valid characters include some alphanumeric characters that can be
represented in digits of 7 segments. The valid characters accepted by the viewer are as follows:
Character
0
1
2
3
4
5
6
7
8
9
A
b
HEX
30h
31h
32h
33h
34h 35h
36h
37h
38h
39h
41h
42h
DEC
48d
49d
50d
51d
52d 53d
54d
55d
56d
57d
65d
66d
Character
C
c
d
E
F
H
h
i
J
L
n
o
HEX
43h
63h
64h
45h
46h 48h
68h
69h
4Ah 4Ch
6Eh
6Fh
DEC
67d
99d
100d
69d
70d 72d 104d 105d 74d
76d 110d 111d
Character
P
r
U
u
,
.
-
_
‘
¯
HEX
50h
72h
55h
75h
20h 2Ch
2Eh
2Dh
16h
27h
28h
DEC
80d 114d
85d
117d 32d 44d
46d
45d
22d
39d
40d
In addition, there are control commands that allow you to start and end the flicker of one or
more characters, as well as in displays with color option set the color of the viewer.
Profinet frame
Displayed Value
%QBx
%QBx+1 %QBx+2 ... %QBx+n
Dn...D2,D1,D0
D0
D1
D2
...
Dn
