Bird Technologies 4421 - Manual (Page 40)

Bird 4421 RF Power Meter
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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.
z XO enables flow control.
z 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
B2 300
B3 600
B4 1200
B5 2400
B6 4800
B7 9600