#Option-02 (RS232C)
Since RS232C Interface is very sensitive of electric noise. So please do the wiring
from AC Power and electric wires separately. Also you must use the shield calbe always.
Indicator Host PC
TX(Transmission data) RXD(Receive data), No.2 Pin
RX(Receive data) TXD(Transmission data), No.3 Pin
GN(Ground) GND(Ground), No.5 Pin
1. TYPE : EIA-232C
2. Method : Half-duplex, Asynchronous method.
3. Baud-rate : Select one of 2400, 4800, 9600, 19200, 38400, 57600bps
4. Parity : No Parity
5. Data bit : 8 bit
6. Stop bit : 1bit
7. Stream mode (Ex. Data +1234.5 trasmission)
CODE BYTE1 BYTE2 BYTE3 BYTE4 BYTE5 BYTE6 BYTE7 BYTE8
ASCII S T , N T , + 0
HEX 53H 54H 2CH 4EH 54H 2CH 2BH 30H
CODE BYTE9
BYTE10 BYTE11 BYTE12 BYTE13 BYTE14 BYTE15 BYTE16
ASCII 1 2 3 4 . 5 CR LF
HEX 31H 32H 33H 34H 2EH 35H 0DH 0AH
1) BYTE1, BYTE2
. DATA stable : S T . DATA unstable : U S
. DATA OVERFLOW : O L . DATA UNDERFLOW : U L
2) BYTE3 ~ BYTE6 : fixed character (, N T ,)
3) BYTE7 ~ BYTE14 : DATA 8 BYTE(including +/-)
4) BYTE15 : CARRIAGE RETURN
5) BYTE16 : LINE FEED
8. Command mode
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OP-03 : Refer to RS485