Installation manual

Model 8210A-2-5 IM-377
Aeroflex / Weinschel
30
RELATTN? Function: Read relative attenuation
Syntax: RELATTN? name
Argument(s): name string10 attenuator name
Remarks: This function reads the relative attenuation of attenuator name. This command may
be used with both physical and virtual attenuation devices supporting the AttnProtocol. The parameter
name must have been previously assigned using either the ASSIGN or ASSIGN ATTN command.
Return Value: relatten real relative attenuation value, in dB
Example(s): RELATTN? AT1 returns ’-10.00’
STEPSIZE Function: Sets attenuation stepsize
Syntax: STEPSIZE name atten
Argument(s): name string10 attenuator or group name
atten real desired stepsize value, in dB
Remarks: This function sets the attenuation stepsize for the INCR and DECR commands of
attenuator name to atten. This command may be used with both physical and virtual attenuation devices
supporting the AttnProtocol. The parameter name must have been previously assigned using either the
ASSIGN, ASSIGN ATTN, or GROUP command. The default value of the attenuator’s stepsize is the
intrinsic resolution of the attenuator, ie a 127dB/1dB step attenuator has a default stepsize of 1dB. If
name is a group name, then the command is performed on each attenuator of the group.
Return Value: none
Example(s): STEPSIZE AT1 10 changes the stepsize of AT1 to 10dB
STEPSIZE? Function: Read attenuation stepsize
Syntax: STEPSIZE? name
Argument(s): name string10 attenuator name
Remarks: This function reads the attenuation stepsize of attenuator name. This command may
be used with both physical and virtual attenuation devices supporting the AttnProtocol. The parameter
name must have been previously assigned using either the ASSIGN or ASSIGN ATTN command.
Return Value: atten real attenuation stepsize value, in dB
Example(s): STEPSIZE? AT1 returns ’10.00’
INCR Function: Increments attenuator or switch from the current setting
Syntax: INCR name
Argument(s): name string10 attenuator, group, or switch name
Remarks: When used with attenuators, this function increments the attenuation setting of
attenuator name by the value of the attenuator’s programmed stepsize (see STEPSIZE command).
When used with switches, the command will increment the switch setting of name by one. This
command may be used with both physical and virtual attenuation or switch devices. The parameter
name must have been previously assigned using either the ASSIGN, ASSIGN ATTN, ASSIGN SWITCH
or GROUP command. If name is a group name, then the command is performed on each attenuator of
the group.
Return Value: none
Example(s): INCR AT1
DECR
Function: Decrements attenuator or switch from the current setting
Syntax: INCR name
Argument(s): name string10 attenuator, group, or switch name
Remarks: When used with attenuators, this function decrements the attenuation setting of
attenuator name by the value of the attenuator’s programmed stepsize (see STEPSIZE command).
When used with switches, the command will decrement the switch setting of name by one. This
command may be used with both physical and virtual attenuation or switch devices. The parameter
name must have been previously assigned using either the ASSIGN, ASSIGN ATTN, ASSIGN
SWITCH, or GROUP command. If name is a group name, then the command is performed on each
attenuator of the group.
Return Value: none
Example(s): DECR AT1