Metrohm 719 S Titrino - Manual (Page 105)

3.3 Properties of the RS 232 Interface
719 S Titrino
101
3.3.3 What can you do if the data transfer does not work?
Problem Questions for remedial action
No characters can be received on
a connected printer.
- Are the instruments switched on and cables plugged in
correctly?
- Is the printer set to ”on-line”?
- Are baud rate, data bit and parity the same on both
instruments?
- Is the handshake set properly?
If everything seems to be ok, try to print a report with the key
sequence <PRINT><SMPL DATA><ENTER>. If this report
is printed out correctly, check if reports are defined in key
<DEF>.
No data transmission and the
display of the Titrino shows an
error message.
- error 42: Transmission error. Is the printer set to "on-line"?
Is the connection cable properly wired?
- error 43: Data output of the Titrino disabled for longer than 6
s by XOFF.
- error 36-39: Receive error. Are the RS settings the same on
both devices?
The received characters are
garbled.
- Are the RS settings the same on both devices?
- Has the correct printer been selected?
- Data transfer has been interrupted on the hardware side
during the printout of a curve. Re-establish connections and
switch printer off/on.
Wrong line spacing. The printer does not emulate completely the preset mode.
Usually these problems arise with the IBM mode. Set the printer
to a different mode (e.g. Epson).
Printout of titration curve is not
ok. Other reports are printed ok.
Handshake is necessary for the printout of curves.
- Is your cable correctly wired? (The DTR of the printer has to
be connected to the CTS of the Titrino.)
- Set "HWs" for the handshake of the Titrino. Configure the
printer such that its DTR is set (possibly with DIP switches).