VI_ATTR_ASRL_RI_STATE

NI-VISA 15.0 Help

Edition Date: June 2015

Part Number: 370131S-01

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Resource Classes

Serial INSTR

Attribute Information

Access Privilege Data Type Range Default

Read/Write
Global

ViInt16

VI_STATE_ASSERTED (1)
VI_STATE_UNASSERTED (0)
VI_STATE_UNKNOWN (–1)

N/A

Description

VI_ATTR_ASRL_RI_STATE represents the current state of the Ring Indicator (RI) input signal. The RI signal is often used by modems to indicate that the telephone line is ringing. This attribute is Read Only except when the VI_ATTR_ASRL_WIRE_MODE attribute is set to VI_ASRL_WIRE_232_DCE, or VI_ASRL_WIRE_232_AUTO with the hardware currently in the DCE state.


Related Topics

INSTR Resource

VI_ATTR_ASRL_CTS_STATE

VI_ATTR_ASRL_DCD_STATE

VI_ATTR_ASRL_DSR_STATE

VI_ATTR_ASRL_DTR_STATE

VI_ATTR_ASRL_RTS_STATE

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