SECTION 9
DIAGNOSTICS
107
9
USER DIAGNOSTICS (cont’d)
9.7
PROBLEM
UPC does not respond to
serial port commands
or
responds with a
COMMAND ERROR message.
PROBABLE CAUSE
#1:
The front panel display does not show the V/I meter display.
. Remote access is not available during Edit or Setup
functions.
SUGGESTED CURE #1:
Press the
CLEAR
key to show the V/I meter display.
PROBABLE CAUSE #2:
Incorrect communication parameters, i.e., Serial baud rate,
parity or number of data/start/stop bits.
SUGGESTED CURE #2:
Verify parameter settings match that of host computer
(
).
PROBABLE CAUSE #3:
Handshaking signals may not be wired correctly.
SUGGESTED CURE #3:
Verify handshake signals are connected properly. See
Section 10 for setup and additional help
