Table 6-15 baud rates – Bird Technologies 4421 User Manual

Page 40

Bird 4421 RF Power Meter

INiTialize

(INT)

Function

Resets the Bird 4421 and returns it to the factory defaults.

Remarks

If INT is linked with any other command within a string, it must be separated

from that command by a space.

ENTer

(ENT)

Function

Makes the power meter transmit a reading to the controller.

Remarks

A measurement must have already been triggered, placing a reading in the

output buffer.
To send a reading whenever a measurement is triggered, set DIP switch 2 to

OFF. The ENT command will not need to be sent.

TRiGger

(TRG)

Function

Initiates a measurement if the power meter is in trigger mode (T3).

Baud Select

(Bx)

Function

Selects a baud rate listed in Table 6-15.

Remarks

When the meter recognizes a valid Bx command, its baud rate is immediately

changed. (The controller is assumed to be transmitting at the new rate; other-

wise sending commands would not be possible.)
This command overrides the DIP switch setting.

Table 6-15 Baud Rates

Xmission Flow Control

(XO/XF)

Function

Enables or disables the XON/XOFF flow control.

XO enables flow control.

XF disables flow control.

Remarks

When data is being sent from the power meter to the computer and flow con-

trol is enabled, data transmission will be suspended when the XOFF character

(hexadecimal 13) is sent by the computer. Transmission will resume when

XON (hex 11) is sent by the computer.
When data is being sent from the computer to the power meter, XOFF will be

sent to the computer when the input buffer fills up. XON will be sent to the

computer when the buffer has emptied.

Command

Baud Rate

300

600

1200

2400

4800

9600