Measurement-computing GPIB-488 Manuel d'utilisateur télécharger pdf (Page 91)

Chapter 4 GPIB 488.2 Library Reference

GPIB-488 4-23 Programming Reference Manual

SendLLO

Sends Local Lockout (LLO) message to all GPIB devices.

Syntax

C SendLLO(int board)

Parameters

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

applications, this value is 0.

Returns

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

When this routine is executed, the specified GPIB board sends the GPIB Local Lockout

(LLO) message to all devices. This means that once they have been addressed as listeners, the

devices respond only to messages sent over the GPIB by the Controller. (In other words, they

can not be locally programmed from front panel controls.) Only the Controller can return

them to a local programming state.

Example

In this example, GPIB board 0 sends a Local Lockout to its connected GPIB devices.

C SendLLO (0);

1 2 ... 86 87 88 89 90 91 92 93 94 95 96 ... 115 116

Pas de commentaire

Measurement-computing GPIB-488 Manuel d'utilisateur Page 91