Measurement-computing GPIB-488 Uživatelský manuál stáhnout pdf (Strana 58)

Chapter 3 GPIB 488.1 Library Reference

GPIB-488 3-45 Programming Reference Manual

IBSRE

Asserts/Unasserts the REN (Remote Enable) line.

Syntax

C ibsre (int board, int ren)

Parameters

board is an integer containing the board handle.

ren specifies whether the REN line is to be asserted or unasserted. If ren is zero, the REN line

is unasserted. Otherwise, the

REN line is asserted.

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. The ESAC error is generated if the

specified GPIB interface board is not the system controller. Contains the previous

REN state

if no error occurs.

Usage Notes

This routine can only be used if the specified GPIB interface board is the system controller.

Even though the

REN line is asserted, the device(s) is not put into remote state until is

addressed to listen by the Active Controller. When the REN line is unasserted, all devices

return to local control.

Example

This example puts the device at MLA 12 (2C hex, ASCII ,) and associated with GPIB

Interface Board 1 in remote mode.

C int gpib1:

gpib1 = ibfind ("GPIB1");

ibsre (gpib1, 2); /* Use any non-zero

value */

ibcmd (gpib1,",", 1);

1 2 ... 53 54 55 56 57 58 59 60 61 62 63 ... 115 116

Žádné komentáře

Measurement-computing GPIB-488 Uživatelský manuál Strana 58