Agilent Technologies HP 54601B Especificaciones descargar pdf (Pagina 47)

Interface Capabilities

The baud rate, stop bits, parity, handshake protocol, and data bits must be

configured exactly the same for both the controller and the oscilloscope to

properly communicate over the RS-232-C bus. The oscilloscope’s RS-232-C

interface capabilities are as follows:

Baud Rate: 1200, 2400, 9600, or 19,200

Stop Bits: 1

Parity: None

Protocol: DTR or XON/XOFF

Data Bits: 8

Protocol

DTR (Data Terminal Ready) With a three-wire interface, selecting

DTR for the handshake protocol does not allow the sending or receiving

device to control data flow. No control over the data flow increases the

possibility of missing data or transferring incomplete data.

With an extended hardwire interface, selecting DTR allows a hardware

handshake to occur. With hardware handshake, hardware signals control data

flow.

XON/XOFF XON/XOFF stands for Transmit On/Transmit Off. With this

mode the receiver (controller or oscilloscope) controls data flow and can

request that the sender (oscilloscope or controller) stop data flow. By

sending XOFF (ASCII 17) over its transmit data line, the receiver

requests that the sender disables data transmission. A subsequent XON

(ASCII 19) allows the sending device to resume data transmission.

A controller sending data to the oscilloscope should send no more than 32

bytes of data after an XOFF.

The oscilloscope will not send any data after an XOFF is received until an

XON is received.

Programming over RS-232-C

Interface Capabilities

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Agilent Technologies HP 54601B Especificaciones Pagina 47