StopBits (Instrument Control Toolbox)

Specify the number of bits used to indicate the end of a byte

Description

You can configure StopBits to be 1, 1.5, or 2 for serial port objects, or 1 or 2 for VISA-serial objects If StopBits is 1, one stop bit is used to indicate the end of data transmission. If StopBits is 2, two stop bits are used to indicate the end of data transmission. If StopBits is 1.5, the stop bit is transferred for 150% of the normal time used to transfer one bit.

Note Both the computer and the instrument must be configured to transmit the same the number of stop bits.

In addition to the stop bits, the serial data format consists of a start bit, between five and eight data bits, and possibly a parity bit. You specify the number of data bits with the DataBits property, and the type of parity checking with the Parity property.

Characteristics

Usage
Serial port, VISA-serial

Read only
Never

Data type
double

Usage	Serial port, VISA-serial
Read only	Never
Data type	double

Values

Serial Port

{1}
One stop bit is transmitted to indicate the end of a byte.

1.5
The stop bit is transferred for 150% of the normal time used to transfer one bit.

2
Two stop bits are transmitted to indicate the end of a byte.

`{1}`	One stop bit is transmitted to indicate the end of a byte.
`1.5`	The stop bit is transferred for 150% of the normal time used to transfer one bit.
`2`	Two stop bits are transmitted to indicate the end of a byte.

VISA-serial

{1}
One stop bit is transmitted to indicate the end of a byte.

2
Two stop bits are transmitted to indicate the end of a byte

`{1}`	One stop bit is transmitted to indicate the end of a byte.
`2`	Two stop bits are transmitted to indicate the end of a byte

See Also

Properties

DataBits, Parity

Status Tag