VI_ATTR_SUPPRESS_END_EN
Resource Classes
Serial INSTR, TCPIP SOCKET, USB RAW, VXI INSTR
Attribute Information
| Access Privilege | Data Type | Range | Default |
|---|---|---|---|
|
Read/Write |
ViBoolean |
VI_TRUE (1) |
VI_FALSE |
Description
VI_ATTR_SUPPRESS_END_EN is relevant only in viRead and related operations.
For all session types on which this attribute is supported, if this attribute is set to VI_TRUE, read will not terminate due to an END condition. However, a read may still terminate successfully if VI_ATTR_TERMCHAR_EN is set to VI_TRUE. Otherwise, read will not terminate until all requested data is received (or an error occurs).
On Serial INSTR sessions, if this attribute is set to VI_FALSE, VISA will perform the behavior described in VI_ATTR_ASRL_END_IN.
On USB RAW sessions, if this attribute is set to VI_FALSE, VISA will perform the behavior described in VI_ATTR_USB_END_IN.
On TCP/IP SOCKET sessions, if this attribute is set to VI_FALSE, if NI-VISA reads some data and then detects a pause in the arrival of data packets, it will terminate the read operation. On TCP/IP SOCKET sessions, this attribute defaults to VI_TRUE in NI-VISA.
On VXI INSTR sessions, if this attribute is set to VI_FALSE, the END bit terminates read operations.
Related Topics