5-6
5
TAbLE 5-2 TROUbLESHOOTING GUIDE
Possible
Symptom
Fault
Action or Check
Modbus command
Wrong command or Recheck program.
fails
command syntax
error
Query the ESR Register to
check on the cause of the
problem.
Query the Modbus Error
register to check on the cause
of the problem.
Wrong output value Check Modbus device
manual.
9099 unexpectedly
Auto-disconnect
Check 9099 settings and
drops socket
set on
turn Auto-disconnect off.
connection
COMM_Timeout
9099 not accessed for a long
expired
time period. Extend 9099
COMM_Timeout period or
add a background keepalive
functon to the client program.
Modbus TCP/IP
Socket closed for no response
faulty operation
from addressed device or for
a faulty response.
9099 has to be reset
Program uses all
Check program for excess
often.
9099 resources
opening and closing of links.
Rewrite program to keep
links open until program
ends.
Note that opening and closing
sockets and links is a time
wasting operation and slows
down your program. If
possible, rewrite the program
to avoid repeatedly opening
and closing sockets and links.
Содержание 9099
Страница 20: ...1 16 1 Figure 1 1 9009 Outline Dimensions ...
Страница 24: ...1 20 1 Figure 1 3 9099 Certificate of Compliance ...
Страница 54: ...3 8 3 Figure 3 1 Status Reporting Structure Flash Configuration Reset ...
Страница 94: ...3 48 3 This page left intentionally blank ...
Страница 100: ...4 4 6 This page is left intentionally blank ...
Страница 161: ...A 49 A4 Refer to the ErrorLogger utility for the error value definitions Error Meaning 0 No error ...