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13 - INTERFACE RS232
RS232 INTERFACE HARDWARE
Votre balance peut communiquer avec la plupart des connections RS232,
néanmoins sans utiliser la totalité des protocoles RS232.
Seules les transmissions et receptions standard de l'interface sont utilisées.
Ce qui ne posera aucun problème avec la majorité des applications.
Your balance can communicate with almost any RS232 device, the build-in
interface does not include the complete protocol. Only the transmit and
receive lines of the standard interface are used. This should not present any
interfacing problems in most applications.
The data format is
1 - start bit
8 - data bit include parity
1 - stop bit
10 - bit per frame (framing errors ignored)
Note: the balance will transmit using the parity selected.
However it does not check the parity it receives.
Use an RS232 cable to connect the external device to the balance,
or construct one following the instructions below.
Connect a high quality, shielded cable with a DB9S (D-subminiature 9 pin
female connector) using the following printout:
1
2
6
Note: "handshake" signals, such as "clear to send" (CES) are not
used. The peripheral must have a minimum buffer (15 characters).
UNIT
PRINT
ENGLISH
3
4
5
7
8
9
FR - EN - NL
INTERFACE
PC
RS232
pin
description
TXD
2
scale transmit data
RXD
3
scale receives data
RRD
5
signal ground
17
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