User`s manual
DeviceNet (Master) Function
8-37
8
When an error occurs on a node (master and slave station), the error code and the node address will be
displayed on the JW-32CUM1 display panel (S0 to S7).
[1] Error code
(1) Error code display
The JW-32CUM1 displays error codes using lights S0 to S7 on the display panel.
S0 to S7 lamp status ( : Lit, : Off)
Error code
(HEX)
S7 S6 S5 S4 S3 S2 S1 S0
D2
D5
D6
D9
E0
F0
F1
F2
F3
F4
F5
F7
F8
F9
FA
FB
(2) Error details
The error code details and actions are as follows.
Indication lamp
Error details
Communication
operation
Master
status *1
Treatment
MS/NS/FT
S0 to S7
(error code)
MS: Keeps the
current
status
NS: Red lamp
blinks
D2
Configuration
error
The I/O area of
one slave station
exceeds input
127 bytes, output
127 bytes
- Dose not retry
connection for
error slave
station.
- Dose not
communicate
with all the
slave station.
D4 turns
ON*2
Reset the slave node addresses.
D5
Verification
error
- There is no
slave data table
at all.
- The slave does
not exist.
D16 and
D3 turn
ON * 2
- Check whether the slaves are
properly connected.
- Recreate the scan list after
checking the slave connections and
node assignments.
D6
The slave's I/O
data size does
not match the
scan list register
details.
- Retry
connection
for error slave
station.
- Communicate
with normal
slave station.
After checking the number of I/O
bytes used by the slaves, recreate
the scan list.
D9
Communicati-
on error
-Aslave time
out ha occurred
6 times in a row
while waiting for
a response.
-Afragmentation
protocol error
has occurred 3
times.
D16 and
D2 turn
ON*2
Check the following:
- Make sure the communication
speed of the master station and
slave stations are the same.
- Make sure there are no
disconnected or loose cables.
- Make sure there is not too much
electrical noise.
- Make sure the cable lengths (trunk
and branches) are appropriate.
- Make sure the terminating
resistances are connected to both
ends and only to the ends.
MS: Green
lamp blinks
NS: Goes OFF
E0
Network
power source
error (Sending
error)
Communication
power dose not
supply normally.
Waiting power
supply from
network power
supply.
D16 and
D5 turn
ON
Check wiring of network power
supply and network cable.
* 1: Master status - See page 8-44.
* 2: D17 will turn ON when the JW-32CUM1 is connected to more than 1
slave station. (If the master station detects a problem or is unable to
establish connection with all slave stations, D17 will turn OFF.)
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