Device Description HG G-71450/1/3/5-A | English, Revision 02 | Date: 06.06.2019
29
Interfaces: RS 232/serial (HG G
-
71450) – Chapter 5
With SW4 the type of telegram output is adjusted:
SW4 Position ON:
When the transponder enters the antenna field of the reading
antenna two identical data sets are put out. Between both data sets there will be a
pause of approx. 20 ms. As the vertical component of the magnetic field shows a
zero point centrically under the reading antenna the transponder will be activated
twice when passing the reading antenna. This means that in all 4 data sets are out
-
put.
SW4 Position OFF:
The code will be put out permanently as long as the transpon
-
der is located in the antenna field. Here the data stream will be interrupted as well,
while the transponder is located centrically under the antenna.
5.2 Telegram Setup ASCII Coding (SW5 = ON)
Example:
Figure 15
HG G-71450: Example for a ASCII telegram setup
Adding the values of A1 to A4 and P results in 0 (A1 + A2 + A3 + A4 + P = 0).
Example:
Bit sequence:
0001 1001 0000 0000
(Transponder code 16 bit) 1900
hex
in the
transponder.
The following bytes will be output:
To sum up: „1“, „9“, „0“, „0“ and „6“ results in „0“.
Table 19
HG G-71450: Baud rate adjustment via SW2 and SW3
Baud Rate
SW2
SW3
38400
OFF
OFF
9600 *)
OFF
ON
19200
ON
OFF
4800
ON
ON
*)
= Factory Setting
Table 20
HG G-71450: Example telegram ASCII-coded
Character
Hex-Value
ASCII-Interpretation
STX
02
STX
A4
31
„1“
A3
39
„9“
A2
30
„0“
A1
30
„0“
P
36
„6“
Check sum (4 Bit hex-coded)
STX Start character (STX = 02 Hex)
