3 characteristics of the rs232 interface, Kf oven as sender, Kf oven external device – Metrohm 768 KF Oven User Manual

Page 36

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3.3 Characteristics of the RS232 interface

768 KF Oven

33


KF Oven as sender:

Data input

Data output

TxD

RxD

Data output of Oven disabled

1 line

LF

XOFF

Inquiry

LF

XON

Data output of

Antwort

LF

External device

KF Oven

Oven enabled

Time


The transmission of the Oven can be stopped by the external device with XOFF. After
receipt of XOFF, the Oven completes transmission of the line already started. If the data
output is disabled for more than 3 s by XOFF, E43 appears in the display.



3.3.2.3 Hardware handshake, HWs

KF Oven as receiver:

LF

Time

KF Oven

External device

RxD

DTR

RxD

DTR


KF Oven as sender:

Time

LF

RTS

CTS

TxD

RTS

CTS

TxD

KF Oven

External device


The data flow can be interrupted by deactivation of the CTS line.

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