4-4
Flex Network User Manual
It is recommended that substitute Flex Network I/F and I/O units be prepared in
advance. This will allow you to minimize the amount of system downtime due to un-
expected errors or problems.
Reconnect any disconnected cables.
Chapter 3 – “ Installation
and Wiring”
The following causes are possible:
<I/O unit>
•
The dip switch or rotary switch has
not been set up correctly (communi-
cation speed, terminating resistance,
S-No. settings).
•
The communication cable has not
been connected correctly, or TR+ and
TR- have been transposed.
•
The communication cable has been
disconnected or has short-circuited.
The connected I/O unit’s power has not
turned on. Turn the power ON.
YES
Is the
Flex Network
unit’s status LED
"ERR" lit?
NO
YES
The Flex Network unit is defective.
Contact your local distributor imme-
diately.
YES
NO
Are
all connected I/O
unit’s status LED
“PWR" lamps
lit?
NO
The I/O unit is defective.
YES
Is the I/O unit’s
status LED “ERR” lit?
YES
NO
Can
the system
enter OFFLINE mode with
the logic program
stopped?
Perform self-diagnosis via the GLC’s
Offline [Error S-No. Display] function.
Pro-Control Editor User
Manual
Flex Network Driver
LogiTouch Editor Opera-
tion Manual,
Logic Program Edition
Flex Network Driver