Specifications

RS-232C Communication with PC 29
7.0 RS-232C Communication with PC
The DC-782 Counting Scale is equipped with an RS-232C port that allows the scale to send data to a PC.
7.1 Connection
Below are the pin assignments for the connectors to a PC.
7.2 General Specifications of the RS-232C Interface
Baud Rate: 1200 / 2400 / 4800 / 9600 / 19200 / 38400 BPS
Start Bit: 1 Bit
Stop Bit: 1 / 2 Bits
Date Bit: 7 / 8 Bits
Parity Bit: Even / Odd / None
7.3 Setting the Scale Specifications for Communication to a PC
The DC-782’s RS-232C port can be used to connect the scale to a PC and output the data string to the computer.
The following specifications must be set for the data transfer to take place: (for more information on setting
specifications, see Section 3.2.1)
• SPEC05, Bit 0 Transmission Condition of RS-232C sets whether you want the data output only
when the weight is stable or to
be output unconditionally.
• SPEC06, Bit 3 RTS/CTS Handshaking of RS-232C must be set to 0: On or 1: Off depending on the
applica
tion receiving the data.
• SPEC06, Bits 0, 1 and 2-Baud Rate of RS-232C mu
st be set for the proper Baud Rate for your
application.
• SPC07, Bit 3-Stop Bit of RS-232C must be set to
the proper Stop Bit for your application.
• SPC07, Bit 2-Data Length of RS-232C must be set to
the proper Data Length for your application.
• SPC07, Bits 1 and 0-Parity of RS-232C must be set to the proper Parity for your application.
• SPEC08, Bits 3 and 2 - Interval of Time Out Error of RS-232C must be set to the proper Time Out
Interval for
your application.
• SPEC08, Bit 1 - Additional Parity Code in Text of
RS-232C must be set to determine whether or not
to allow an additional parity code in the text of the transmission.
• SPEC08, Bit 0 - Status and Weight Condition Flag i
n Text of RS-232C determines whether or not the
condition flag will be included in the transmission.
CN6 (5 pins)
PIN SIGNAL
1RXD
2RTS
3TXD
4CTS
5 GND
DC-782 Side
9 PIN DIN
PIN SIGNAL
RXD 2
RTS 7
TXD 3
CTS 8
GND 5
PC Side
TXD
RXD
GND