Gotting HG G-98820ZA, Technical Description

Page: 20 / 74

Components and Operation
HG G-98820ZA
English, Revision 09, Date: 13.12.2016 20
4.2.3.1.2 List of commands
A command telegram always consists of four bytes, including the actual command
and the parameters. When using the procedure „transparent“ it is, in addition, necs-
sary to transfer one start character and a check sum (XOR operation of all bytes in-
cluding the start character).
There are 21 predefined commands:
NOTE! The table below is valid for 'High Byte First'-transmission. For
'Low Byte First'-transmission the order of command and parame-
ter bytes has to be changed.

The duration of 'Tune Antenna Once'-command is maximal 10
seconds for 16 tuning steps.

The monitor mode should not be used during normal operation
(e. g. from a PLC), as the following signal output is not according
to a ’transparent’ or ’3964R’ protocol but only suitable for output
on a VT52-terminal and used for the manual alteration of parame-
ters.
No. Procedure Start
Command

Bytes
Parameter

Bytes
Check
Sum *)
Description
1
3964R
HEX 4D
16
4F
16
4E
16
49
16
Switch to monitor mode
(description in section 5.2
„System Monitor“ on page
30)
ASCII MO NI
trans-
parent
HEX 3D
16
4D
16
4F
16
4E
16
49
16
38
16
ASCII = MO NI 8
2
3964R
HEX 54
16
55
16
4E
16
45
16
Tune antenna once
ASCII TU NE
trans-
parent
HEX 3D
16
54
16
55
16
4E
16
45
16
37
16
ASCII = TU NE 7
3
3964R
HEX 53
16
54
16
30
16
31
16
Set tuning value to 1
ASCII ST 01
trans-
parent
HEX 3D
16
53
16
54
16
30
16
31
16
38
16
ASCII = ST 01 8
4
3964R
HEX 53
16
54
16
30
16
32
16
Set tuning value to 2
ASCII ST 02
trans-
parent
HEX 3D
16
53
16
54
16
30
16
32
16
3B
16
ASCII = ST 02 ;
Table 6
List of the system commands (part 1 of 4)