Device Description HG G-71910-C | English, Revision 03 | Date: 17.09.2019
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Chapter 9 – Appendix
The data sentence always starts with an „=“-character (hex 0x3d). Then the param
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eters chosen from the respective menu follow. The telegram is to be quit with an 8
bit check sum over all characters. This check character is the result of ex-oring all
characters. The characters are transmitted without delay.
9.3.2 Data direction SPS -> antenna
Commands are transmitted into this direction if necessary. Each command must
start with a „=“-character (hex 0x3d). The format of the commands is described in
Table 8 „List of system commands“ on page 21. The telegram is to be quit with a 8
bit check sum (XOR) over all characters. The characters are sent without delay. The
characters must be received within the parameterizeable character delay time. Oth
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erwise the telegram will be chopped.
9.4 Parallel Output
After decoding of the transponder code valid the lower 15 bit will be set to the cor
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responding outputs. The appropriate transponders of the driver circuit are set up to
24 V. Additionally the DTR -output is activated for the duration adjustable. The in
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creasing edge / slope of this pulse can be used for the storage of the parallel data,
e.g. of an PLC. The edge (duration adjustable via Time&Code -> DTR Setup Time; see
6.3.2.4 on page 38) will be started after applying the code to the parallel output. A
(possible) 0 code does not lead to the activation of the DTR output. A multiple re
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ceiver leads to the activation of the output, if this one is deallocated in the corre
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sponding menu (6.3.2.4 on page 38).
9.5 Positioning Pulse
After crossing the center of the antenna a current limited output is set up to 24 V for
an adjustable time. Via the corresponding set up menu (6.3.2.4 on page 38) it is pos
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sible to set whether the crossing of the antenna’s center generates a positioning
pulse or if only one pulse per crossing is output.
Additionally it is possible to set that the positioning pulse is only deallocated after a
transponder has been decoded.