Data-Transfer Parameters - SCHOTT TW alpha plus Mode D'emploi

6.3 Data-transfer parameters

The transfer speed of the interfaces can be set using the "Baud Rate" switch (fig. 1, item 5). Except for the
transfer speed, the following parameters are defaulted:
Number of data bits
Number of stop bits
parity check
The "Baud Rate" switch can be used to set a total of 2 different speeds:
4800 baud, 9600 baud.
The ex-factory setting of the baud rate is 4800.
In addition to the baud rate, this switch can be used to adapt the device to the mains frequency (50 Hz or 60
Hz) and to specify the use of a COD sample plate. The list below shows the details of the switch positions:
Switch Position Meaning
0 4800 Baud / even Parity / 50 Hz / normal beaker glasses
1 4800 Baud / odd
2 4800 Baud / no
3 9600 Baud / no
4 4800 Baud / even Parity / 60 Hz / normal beaker glasses
5 4800 Baud / odd
6 4800 Baud / no
7 9600 Baud / no
8 4800 Baud / even Parity / 50 Hz / COD reaction vessels according to DIN 38 409, Part 41
9 4800 Baud / odd
A 4800 Baud / no
B 9600 Baud / no
C 4800 Baud / even Parity / 60 Hz / COD reaction vessels according to DIN 38 409, Part 41
D 4800 Baud / odd
E 4800 Baud / no
F 9600 Baud / no
When using the TW alpha plus Titration Sample Changer in combination with devices from SCHOTT Instru-
ments, the baud rate is to be set to 4800 including the appropriate options (50 / 60 Hz, normal beaker
glasses/COD reaction vessels).
Extract from the table:
Switch position Meaning
2 4800 Baud / no Parity / 50 Hz / normal beaker glasses
6 4800 Baud / no Parity / 60 Hz / normal beaker glasses
A 4800 Baud / no Parity / 50 Hz / COD reaction vessels according to DIN 38 409, Part 41
E 4800 Baud / no Parity / 60 Hz / COD reaction vessels according to DIN 38 409, Part 41
= 7
= 2
= even, odd, no
Parity / 50 Hz / normal beaker glasses
Parity / 50 Hz / normal beaker glasses
Parity / 50 Hz / normal beaker glasses
Parity / 60 Hz / normal beaker glasses
Parity / 60 Hz / normal beaker glasses
Parity / 60 Hz / normal beaker glasses
Parity / 50 Hz / COD reaction vessels according to DIN 38 409, Part 41
Parity / 50 Hz / COD reaction vessels according to DIN 38 409, Part 41
Parity / 50 Hz / COD reaction vessels according to DIN 38 409, Part 41
Parity / 60 Hz / COD reaction vessels according to DIN 38 409, Part 41
Parity / 60 Hz / COD reaction vessels according to DIN 38 409, Part 41
Parity / 60 Hz / COD reaction vessels according to DIN 38 409, Part 41