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The 1V_ADJ parameter adjusts the accuracy at 1V. As an example, if the out-
put is +0.991V when it should be exactly 1V then 1V_ADJ should be adjusted
by adding 0.009 to its present value. The error at 1V can be determined by
measuring the resistance of a short and setting the SCALE setup parameter to a
large value, such as 10000, and the CENTER parameter to the opposite of that
value (–10000). The output should be exactly 1V.
The CAL DATE parameter can be used to record the date the calibration was
performed.
14.8.5
Device Setup Commands
The SYST:MODn:DEVn:READ? and SYST: MODn:DEVn:WRIT commands
(see Sections 6.5.8.19 and 6.5.8.20) can be used to read or set the setup param-
eters for the 3560 Analog Output Device. The device number of the Analog
Output Device is 5. The module number for the 3560 module is its position in
the stack. For example, if the 1560 has four add-on modules, the 3560 being
the last, the module number for the 3560 is 4. Table 35 shows the device com-
mands used to read or set the setup parameters of the Analog Output Device.
Table 35 Analog Output Device Commands
Below are some examples of using the device commands to set the device pa-
rameters. For these examples it is assumed that the 3560 Communication Mod-
ule is placed fourth in the stack. These commands can be sent through any
communication interface including the IEEE-488 and RS-232 interfaces.
Device Command
CNTR
SCAL
SYST:MOD4:DEV5:WRIT "CNTR",25 Set center of range at 25°C.
SYST:MOD4:DEV5:READ? "CNTR" Read center setting.
SYST:MOD4:DEV5:WRIT "SCAL",10 Set scale to 10°C/V.
14 3560 Extended Communication Module
Parameter
numeric
0V center
numeric
1V scale
Analog Output Device
Description
175
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