LD128EN-100 Operation, installation, user manuals and product datasheets V1.0
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LD128EN-100 series bus equipment addressing device is designed for LD128E series bus products. Using it the
address and type of LD128E and LD128EN series bus products can be configured and read out. Besides, it is portable and
easy to operate.
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Compliant both in industrial and residential buildings.
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Series bus equipment addressing device， LD128EN-100
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Product’s housing is injection molded with plastic, pollution-free.
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LD-FJ/Y-219-02 SS Beijing Leader Huaxin Electronics Co., Ltd
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The display consists of 4 digit numbers. See fig. 1
The 4th position of the display stands for status: displaying a letter indicates the function of addressing device;
displaying “P” and “L” indicate the writing bus’s address and type correspondingly while displaying “C” and “E” indicate
the reading bus’s address and type. Displaying “3” and “4” indicate writing and reading channel No. of electrical leakage
protection equipment while displaying “9” and “7” writing and reading feedback address of fire hydrant.
The 3rd position stands for the hundred’s place of the address to be read or written; in a similar way, the 2 nd position
refers to the tens place of the address and the 1st position shows the unit of the address.
On the right side there are 3 shift arrows: ready to plus/minus the unit when it is bottomed while operating the tens
place when it is in the center and the hundred’s place when it is on the top.
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The operation panel consists of 7 buttons:
“Plus”: operate at unit, tens place and hundred’s place. Add one after one press.
“Minus”: operate at unit, tens place and hundred’s place. Minus 1 after one press.
“Shift”：position shift button. Change 1 position in each press, referring to the arrows on the display.
“Write”: Indicate “P” in the 4th position when pressed.
“ ead”: Indicate “C” in the 4th position when pressed.
“Type”: indicate “L” or “E” or “3” or “4” or “7” or “9”;
“L” → write type; “E” → read type;
“3” → write “channel No” of linkage protection equipment
“4” → read “channel No” of linkage protection equipment
“9” → write feedback address of fire hydrant
“7” → read feedback address of fire hydrant
