Measurement-computing GPIB-488 Bedienungsanleitung PDF herunterladen (Seite 81)

Chapter 4 GPIB 488.2 Library Reference

GPIB-488 4-13 Programming Reference Manual

RcvRespMsg

Reads data from a previously addressed device.

Syntax

C RcvRespMsg(int board, char data[], long count,

int termination)

Parameters

board is an integer which identifies the GPIB board to be used for this operation. In most

applications, this value is 0.

count specifies the maximum number of data bytes which are to be read.

termination is the flag used to signal the end of data. If termination equals a value

between 0 and 00FF hex, the corresponding ASCII character is the termination character. The

read is stopped when this character is detected. If

termination = STOPend (A constant

defined in the header file), then the read is stopped when EOI is detected.

Returns

data is the string that receives the data.

ibsta will contain a 16-bit status word as described in Appendix B, IBSTA.

iberr will contain an error code, if an error occurred.

Usage Notes

You must address the appropriate devices as Listeners/Talkers prior to calling this routine.

The input data string is not terminated with a zero byte.

Example

A previously addressed Listener receives 50 bytes of data from a previously addressed Talker.

The transmission is terminated when EOI is detected.

C char data[50];

RcvRespMsg(0, data, 50, STOPend)

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Measurement-computing GPIB-488 Bedienungsanleitung Seite 81