Operating Manual HG G-98830YA | English, Revision 02 | Date: 21.06.2021
58
Chapter 10 – Configuration of the System via the Service Interface
Checking the highest four bits for a preset value (0-F)
Since code transmission is only secured by simple parity checking, the following two
security strategies have been implemented:
1.
With the parameter
(H)igh-Nibble of RW-Code
you can check the highest four
bits of RW transponders for a preset value (0-F). This value can be set here and
must then also be programmed accordingly into the transponders together with
the desired code. With entries greater than F, the check is switched off.
Value range:
0 … F, > F
To check the highest four bits for a predefined value (0-F)::
Press the key
and enter the desired value.
Set number of codes to be compared
2.
The parameter
(N)umber of equal Codes
allows you to set the number of codes
to be compared between 0 and 15. If you enter
0
each received code is output
immediately, if you enter
1
, a received code is compared with the code received
exactly before it, etc.
Note that this procedure reduces the maximum possible crossing speed, as the re
-
quired transmission time will increase with (n+1) x 8 ms.
Value range:
0 … 15
To define the number of codes to be compared:
Press the key
and enter the desired value.
Setting the voltage for code decoding and position calculation
You can use the
(T)hreshold for Decoding
parameter to suppress decoding attempts
if the signal is too weak, if necessary. You determine at which voltage S the code de
-
coding starts and the position calculation is performed.
Value range:
20 … 1023
To set the voltage for code decoding and position calculation:
Press the key
and enter the desired value.
Enabling output of a positioning pulse after decoding
By setting the parameter
PosiPulse (a)fter Decoding
you enable the output of a po
-
sitioning pulse only after the decoding of a transponder. This avoids faulty position
-
ing pulses in an environment influenced by interference frequencies.
Note that this procedure reduces the maximum possible crossing speed, since the
preset number of identical codes must have been read by the middle of the antenna.
Selection:
0 = The positioning pulse can be output independently of the code reading on
center crossing. Positioning pulses can also be output if interference is present.
1 = The positioning pulse will is only enabled after decoding a transponder.
