Rs232 Interface Features; General Features; Map Of Connector; Connecton Of The Balance To The Optional Alphanumeric Keyboard - Accuris W3101A-120 Operation Manuals

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RS232 Interface features

11.1 General features

The balance transmits the value visualized on the display following serial RS232C standard,
allowing to print the value of weight to a PC monitor or to a serial printer. In the case of
connection to a PC, it will be possible to select the transmission in continuous mode or
transmission at user command through pressing of the PRINT button ( as described at par.9.2).
The balance is also capable of receiving commands, always through the standard RS232C, that
allow performing all the functions available through the keyboard of PC itself. The speed of
transmission and reception can be selected, as described previously (see par.9.3), to 1200,
2400, 4800, e 9600 baud. The character format is of 8 bit preceded by one bit of start and
followed by a bit of stop. Parity is not considered.

11.2 Map of connector

9
8
7
6

11.3 Connecton of the balance to the optional alphanumeric keyboard

To connect the optional external alphanumeric keyboard to the balance, it must be used the
same connector that is used to link the balance to PC. In this case the connection to PC or to
printer must be effected through the connector placed on the optional alphanumeric keyboard.
11.4 Connection of the Balance to computer
To receive/transmit data, link the connector (n.2 of fig.1 at par.5) of the balance to the serial port
of your Personal Computer as shown below:
5
4
3
2
1
CONNECTOR MAP
CONNECTION FOR KEYPAD, PC AND
PRINTER
▪ pin 1
= Power +5v for keyboard
▪ pin 2
= signal Tx
▪ pin 3
= signal Rx
▪ pin 4
= busy signal
▪ pin 5
= Gnd
▪ pin 4-6 = connected eachother for
transmission to PC
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