Watlow ANASCAN - Manual (Page 25)

START UP
ANASCAN User’s Guide 17
Communications problems
NOTE
See the respective CAS hardware manual for assistance in checking
the communication parameters and verifying the communication
wiring.
• If there is more than one CAS in the system, ANASCAN will try
supervising those CAS which are operating and communicating
correctly. After start up ANASCAN periodically re-checks commu-
nications to the failed CAS.
• By continuing the start up, the CAS not communicating will be
listed by address on the System Errors window in the System Setup
screen. Check the unit listed on the screen. Be sure the address is
correct as set on the CAS.
Message Cause Solution
Failed Communica-
tions to CAS
Abort start up
(Y/N): ANASCAN cannot com-
municate with one of the
CAS during the initial sys-
tem communications
check or during the job
downloading/uploading. • Verify that the communications
port set in ANAINSTL is the one
actually connected to the CAS.
• Verify that the communications
parameters (baud rate and error
checking mode) set in the instal-
lation program are those set in
the CAS. The CAS communica-
tions parameters are set using the
front panel keys while in the
GLOBAL menu.
• Verify that the address of each
CAS is unique (for multiple CAS
systems).
• Verify that the correct version of
ANASCAN is running for the
CAS being used.
• Verify that the wiring is done
correctly to the CAS and the
computer.