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TDS2CMA Communications Module

142

TDS1000/2000-Series Digital Oscilloscope User Manual

Checking Command Status

If you want to che ck the status of each command sent, you can

append an *STB? query after every command and read the response

string.

Processing Break Signals

When the oscilloscope senses a break signal on the RS-232 port, it

returns DCL followed by the end of line terminator. Internally, the

oscilloscope acts as if it received a GPIB <DCL> command, causing

the oscilloscope to erase the contents of the input and output buffers

and then wait for a new command. Break signals do not change

oscilloscope settings or stored data and do not interrupt front-panel

operation or nonprogramma ble functions.

If a break signal i s sent in the middle of a character stream, several

characters immediately preceding or following the break can be lost.

The controller should wait until it receives the DCL and the end of

line terminator stri ng before sending more characters.

RS-232 Connector Pinout Di agram

The next figure shows the pin numbering and signal assignments for

the TDS2CMA RS-232 connector.

1 2 ... 155 156 157 158 159 160 161 162 163 164 165 ... 205 206

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