80
14. Communication with Peripheral Devices
14.2 Personal Computer - RS-232C
Programming with the command codes makes it possible to control the balance from a computer.
When the balance does not have to be controlled by the computer, WindowsDirect (see
) offers very
handy data transmission.
14.2.1 Connecting the Cable
For DOS/V computers (D-sub9 pin) (Null-modem)
Notes
• The cable must have the correct connections as shown in the diagram
below.
• Cables with the connections shown below and the special accessory
RS-232 cable are not guaranteed to operate properly for all types of
computers and devices.
• Refer to
when using WindowsDirect function.
Computer side
Balance side
RXD
2
---------------
2
TXD
TXD
3
---------------
3
RXD
DTR
4
---------------
6
DSR
SG
5
---------------
7
SG
DSR
6
---------------
20
DTR
RTS
7
---------------
5
CTS
CTS
8
---------------
4
RTS
9
---------------
22
.......This connection is not necessarily required.