Installation manual

Model 8310-XX-X-XN IM-493
Aeroflex / Weinschel
29
5-6. GENERAL COMMANDS:
CHAN Function: Selects the currently active channel
Syntax: CHAN chnum
Argument(s): chnum integer channel number
Remarks: This function is used to select the currently active channel.
Return Value: none
Example(s): CHAN 1
CHAN? Function: Reads the current channel number
Syntax: CHAN?
Argument(s): none
Remarks: This function is used to read the currently active channel number.
Return Value: chnum integer current channel number
Example(s): CHAN? Returns ’1’
ATTN Function: Set attenuation
Syntax: ATTN atten
Argument(s): atten real desired value, in dB
Remarks: This function sets the attenuation of the currently selected channel to atten.
Return Value: none
Example(s): ATTN 63
ATTN 12.25
ATTN 45.0
ATTN? Function: Read attenuation
Syntax: ATTN?
Argument(s): none
Remarks: This function reads the attenuation of the currently selected channel.
Return Value: atten real attenuation value, in dB
Example(s): ATTN? returns ’63.00’
REL Function: Sets relative display mode for the current channel
Syntax: REL mode
Argument(s): mode integer relative mode on/off
Remarks: This function is used to set the relative display mode of operation for the current channel.
A value of 0 for the parameter mode will turn relative mode off, while a value of 1 will turn
relative mode on.
Return Value: none
Example(s): REL 1
REF Function: Sets reference
Syntax: REF
Argument(s): none
Remarks: This function sets the reference value for the active channel to the current attenuation
setting.
This command is used for the REL and RELATTN functions.
Return Value: none
Example(s): REF; REL 1 sets the reference, and turns on relative mode
REF? Function: Read reference setting
Sy
ntax: REF?
Argument(s): none
Remarks: This function reads the reference setting of the currently selected channel.
Return Value: refatten real reference attenuation value, in dB
Example(s): REF? returns ’30.00’