Measurement Computing Data Translation DT9857, User Manual

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Troubleshooting
129
Device failure
error reported The DT9857 or DT9857E module cannot
communicate with the Microsoft bus driver
or a problem with the bus driver exists. Check your cabling and wiring and tighten any
loose connections; see the instructions in
Chapter 3 .
The DT9857 or DT9857E module was
removed while an operation was being
performed. Ensure that your module is properly connected;
see the instructions in
Chapter 2 .
Data appears to
be invalid An open connection exists. Check your wiring and fix any open
connections; see the instructions in
Chapter 3 .
A transducer is not connected to the
channel being read. Check the transducer connections; see the
instructions in
Chapter 3 .
The module is set up for differential inputs
while the transducers are wired as
single-ended inputs or vice versa. Check your wiring and ensure that what you
specify in software matches your hardware
configuration; see the instructions in
Chapter 3 .
The module is out of calibration. DT9857 and DT9857E modules are calibrated
at the factory. If you want to readjust the
calibration of the analog input or analog output
circuitry, refer to
Chapter 8 .
USB is not
recognized Your operating system does not have the
appropriate Service Pack installed. Ensure that you load the appropriate Windows
Service Pack. If you are unsure of whether you
are using USB 3.0, 2.0, or USB 1.1, run the
Open Layers Control Panel applet, described in
Chapter 2 .
Standby mode is enabled on your PC. For some PCs, you may need to disable
standby mode on your system for proper USB
operation. Consult Microsoft for more
information.
Table 23: Troubleshooting Problems (cont.)
Symptom Possible Cause Possible Solution