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Metrohm 766 IC Sample Processor User Manual

Page 115

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5 Interfaces

766 IC Sample Processor

110

5.2.10 RS232 error rectification

Problem

Questions for corrective action

No characters can be re-
ceived on an attached
printer.

Are the devices switched on and the connecting cables
plugged in properly?

Is the printer set to ”on-line”?

Do the baud rate, data bits and parity for the two devices have
the same setting?

Is the handshake set properly?

If everything appears ok, try to print out a report by pressing the
key.

No data transmission oc-
curs and an error message
appears in the display of
the 766 IC Sample Proces-
sor.

⇒ RS error 36…

…39: Receive errors.

Do the RS232 data transmission parameters of the two de-
vices have the same setting?

RS error 40

…42: transmission errors.

Is the cable used correctly wired and plugged in?
Is the printer switched on and set to ”on-line”?

RS error 43: Data output of the 766 IC Sample Processor
blocked for longer than 3 s by XOFF.

The received characters
are garbled.

Do the data bits and parity of the two devices have the same
setting?

Does the baud rate of the two devices have the same setting?

Is the correct printer selected?

The data transfer has been interrupted by the hardware during
a printout. Set up connections again, switch printer off then
on.