TDT RZ2 Manual page 355

System 3
In the example correction circuit above:
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•
•
If using the recommended MS16_Control Macro, the
the macro's Stim Signal input.
Selecting Global or Local Reference Mode
The MS16_Control macro should be included in all circuits for stimulus isolator
control. The Stimulation Mode setting on the Setup tab of the macro properties
dialog box determines whether the stimulus isolator is configured to use a global
reference
Global Reference Mode
If a global reference is desired, set the MS16_Control macro's Stimulation Mode to
Single Ended
RefChan input is disabled.
Local Reference Mode
If local reference is desired, set the MS16_Control macro's Stimulation Mode to
Differential
RefChan input is enabled.
Note: In Local Reference (
input while the Channel Select Method is set to With Chan Mask, will disable all
local reference channels and enable the global reference.
Configuring Reference and Stimulation Channels
The MS16_Control macro sets reference and stimulation channels. Feeding an
integer value to the macro's StimChan and RefChan inputs will
for stimulation or reference, respectively. The Channel Select Method on the Setup
tab of the macro properties dialog box determines whether the integer is read as a
single channel number or as a mask value representing multiple channels.
Important! Configuring a channel, as both stimulus and reference will cause the unit to
automatically turn off that bank of channels.
Setting a Single Channel for Stimulation or Local Reference
By default, the Channel Select Method on the Setup tab of the macro properties
dialog box is set to With Chan Number. The StimChan and RefChan inputs
accept an integer value of 0 through 16 and the macro will set the selected channel
for stimulation or local reference.
Note: An integer value of 0 fed to StimChan disables all channels.
The value for "correction" represents the results of the calculation above.
The value for "desired uAmps" represents the desired amplitude of the stim-
ulus signal.
The values for the "Limit" component should be set based on the actual
limits of your systems. The MS4/MS16 is available in 100 μA and 1 mA
versions. In either case, when using the ACC16 you will NOT be able to
deliver the MAXIMUM current. The maximum current = 1/correction fac-
tor x 100. Calling for higher currents will deliver currents at the defined
limit.
(Single ended)
or a local reference(s)
on the Setup tab of the macro properties dialog box. In this mode the
on the Setup tab of the macro properties dialog box. In this mode the
Differential
) mode, writing a 0 to the RefChan_Mask macro
correct uAmps
value is fed to
(Differential)
.
turn on channels
MS4/MS16 Stimulus Isolator
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