Metrohm 766 IC Sample Processor Instrukcja Użytkownika Pobierz pdf (Strona 113)

5 Interfaces

766 IC Sample Processor

108

766 IC Sample Processor as sender:

RxD

TxD

XOFF

XON

Software handshake with line stop (SWline)

Handshake inputs are (CTS, DSR, DCD) are not checked at the 766 IC

Sample Processor, handshake outputs (DTR, RTS) are set.

The 766 IC Sample Processor has an input buffer which can accept a

string of up to 80 characters + C

. As soon as an L

is recognized,

the 766 IC Sample Processor sends XOFF. After this time, it can still re-

ceive max. 6 characters and store them temporarily. The string sent

previously is now processed by the 766 IC Sample Processor. It then

sends XON and is again ready to receive.

766 IC Sample Processor as receiver:

RxD

TxD

XON

XOFF

766 IC Sample Processor as sender:

RxD

TxD

XOFF

XON

The transmission of the 766 IC Sample Processor can be stopped by

the external device with XOFF. After the receipt of XOFF, the 766 IC

Sample Processor finishes transmission of the line already started. If

the data output is blocked for more than 3 s by XOFF, "E43" appears in

the display.

External device

Data

input

Data

output

Data output

enabled

Data output

disabled

max. 4

char.

Time

766

External device

Data

input

Data

output

766 input

blocked

Process string

400 µs

Time

766

External device

Data

input

Data

output

Response

line

Inquiry

Data output of

766 free

Data output of 766

blocked

Time

766

1 2 ... 108 109 110 111 112 113 114 115 116 117 118 ... 142 143

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Metrohm 766 IC Sample Processor Instrukcja Użytkownika Strona 113

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