Operating Manual HG G-98830YA | English, Revision 02 | Date: 21.06.2021
51
Configuration of the System via the Service Interface – Chapter 10
10.2.2 Display of System Variables and Status Messages
The following information is shown in each of the menu screens:
In the uppermost lines important system variables (see Table 28). The display
corresponds to the structure of the telegram sent by the antenna (see 9.2.1 „List
of system values that can be output“ on page 36).
In the last line of the screen possible status messages, e.g., if valid value ranges
were ignored during data input.
Table 28
Meanings of the system variables (monitor program)
Meanings of the system variables
S
Measured voltage of reference coil in units (max. 1023)
D
Measured voltage of positioning coil in units (max. 1023)
D_X [mm] Transponder position in direction of travel in millimeters (max. ±125,
32767 for invalid position)
D_Y [mm] Transponder position transverse to direction of travel in millimeters
(max. ±125, 32767 for invalid position)
Code
The code bits of the transponder in hexadecimal format. The Code is
output when the voltage S exceeds the threshold "Threshold for
Decoding" (see Figure 26 on page 57).
Read
The number of code readings per transponder crossing (max. 255).
The value is held until a new transponder is detected. Is also deleted
by Noise.
N
The number of reading errors per transponder crossing. The value is
held until a new transponder is detected.
Frx [Hz]
and
Ftx [Hz]
Display of important system frequencies for transmission and recep
-
tion. These frequencies are permanently monitored and taken into
account in the system status word E (see below).
U [mV]
Supply voltage of the processor board measured to an accuracy of
100 mV. Due to various protective measures it is always slightly
below the supplied supply voltage.
I [mA]
Current consumed by the antenna measured to an accuracy of
10 mA
T [Grd.C]
Approximate temperature measured in the antenna in 5° C steps
E
System state in hexadecimal format. The meaning of the individual
bits is explained in Table 9 on page 37.
Noise
Output of a counter:
–
If the reference voltage S rises above the
Threshold for Decoding
,
the counter is incremented every 8 ms until it reaches the
Level to
Noise Error
value.
–
If S falls below this threshold, it counts down to 0. If a code is
decoded, the counter is immediately set to 0.
This mechanism is used to check whether a transponder or a foreign
signal is present. If this counter exceeds an adjustable value (see
10.2.6 „(T)ime & Code“ on page 56), then the
RX_NOISE
bit is set in
the system status.
