Filter
Top Products
2-3
If you plan to use any of the digital I/O ports for output control in your application(s), note the
following Caution statement:
Locate switch S1 shown in FIGURE 2.1, UDAS Switch S1 in the lower left-hand corner of the
board.
1. Set the direction for Port 1. The default setting is input (Off).
To designate Port 1 as an output port: set switch 9 to the On position.
To designate Port 1 as an input port: set switch 9 to the Off position.
2. To set the initial data for Port 1, set switches 1-8.
On = 5 V
Off = 0 V
Reinstalling the CoverReinstalling the Cover
1. Insert the cover onto the rails located on both sides of the base of the UDAS unit and slide the
cover towards the back panel until the cover is seated into the frame on the back panel.
2. Place the face plate over the edges of the cover and unit’s frame.
3. Align the screw holes on the cover with the unit, insert each Phillips screw on the face plate
and tighten the screws into place.
Enabling the CJCEnabling the CJC
To enable the CJC:
• Install jumpers A, C and D on JP1.
The CJC circuit uses differential channel 0 to report compensation information to the UDAS.
When using the CJC circuit, verify there is no external signal connected to channel 0/8.
CAUTION:
For applications using UDAS units to generate output signals for control or other
sensitive purposes, the status or level of outputs during power-up may be of critical
importance. Integrated circuits and other devices powered by supply voltages are
subject to possible transients or an indeterminate status while the power supply
voltages are making the transition from zero to their steady-state values.
Note: You can reconfigure any of the ports through software after the unit is
powered-up. Port 0 always powers-up as an input port.