Precisa 490 IB Series, Руководство по эксплуатации, Страница: 36 / 46

■ 13 Data transfer
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13 Data transfer
For data-transfers to peripheral devices, the balance is equipped with an RS232/V24-interface.
Before the data-transfer, the RS232 interface must be matched with the one in the peripheral device in the
balance configuration menu (see chapter 8.3.7 "Interface functions").
•
Handshake
The handshake is set to „NO“ (none) at the factory. It can be set to software handshake „XON-XOFF“, or
to hardware handshake „HARDWARE“.
•
Baud rate
Possible baud rates: 300, 600, 1200, 2400, 4800, 9600, 19200 baud.
•
Parity
Possible parity: 7 even 1 stop, 7 odd 1 stop, 7 No 2 stop, 8 No 1 stop.
• Display
The data-transfer takes place in ASCII code:
13.1 Connection scheme
• Standard duplex connection
• Standard, duplex connection with additional hardware handshake in the peripheral device
± 12 V SB 1 2 3 4 5 6 7 8 SP
7-even-1 SB 1.DA 2.DA 3.DA 4.DA 5.DA 6.DA 7.DA PB SP
7-odd-1 SB 1.DA 2.DA 3.DA 4.DA 5.DA 6.DA 7.DA PB SP
7-no-2 SB 1.DA 2.DA 3.DA 4.DA 5.DA 6.DA 7.DA 1.SP 2.SP
8-no-1 SB 1.DA 2.DA 3.DA 4.DA 5.DA 6.DA 7.DA 8.DA SP
SB: Start bit PB: Parity bit
DA: Data bit SP: Stop bit
S D7 D6 D5 D4 D3 D2 D1 D0 U U U
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ... ... ...
B B B S D7 D6 D5 D4 D3 D2 D1 DP D0 B U ... CR LF
B Blank (space)
S Sign (+, –, space)
DP Decimal point
D0...D7 Digits
U ... Unit (only if the weight is stable, otherwise no unit is send)
CR Carriage return
LF Line feed
NOTE
Unused positions are filled with spaces.
The decimal point DP can be between D0 and D7.
Balance RJ 45 D25 / D9 Peripheral device
RS 232 out 2 3 / 2 RS 232 in
RS 232 in 6 2 / 3 RS 232 out
GND 5 7 / 5 GND
Balance RJ 45 D25 / D9 Peripheral device
RS 232 out 2 3 / 2 RS 232 in