37
supplied to the I/O. While the I/O Ground is common to each Isolated Digital
I/O Module installed (both the Differential I/O Module and the Analog Input
Module have separate, non-isolated grounds) V-PULLUP is
NOT
common.
This allows you to power each I/O group independently if you choose.
The expansion isolated digital I/O is configured and controlled by the IOS variable
and the IO instructions in the same manner as the standard I/O set. The only
difference is in how the lines and groups are addressed. See Section 8 for instruc-
tions on using the isolated I/O.
If digital filtering is used (IOF variable) it must be configured for each
group separately.
T h e H i g h - S p e e d D i f f e r e n t i a l I / O M o d u l e
The MicroLYNX has the capability of
having up to two High-Speed Differential
I/O Modules installed in expansion slot
numbers 2 and 3. The High-Speed Differen-
tial I/O Module expands the capabilities of
the MicroLYNX to include application
features such as:
1] Closed Loop Motion Control
(Encoder Feedback).
2] Electronic Gearing (Ratio Functions).
3] Secondary Clock Output.
4] General Purpose High-Speed I/O.
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Table 9.3: Electrical Characteristics
Figure 9.3: Powering Multiple Isolated Digital I/O Modules
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