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13-6
Chapter 13: Troubleshooting
13
13-4 Error indicators on the display panel
If an error occurs while communicating with the module, the error details can be checked by reading
the error code on the display panel (LED display) of the module. Find the cause of the error by looking
up the error code that is displayed. Then take the appropriate countermeasures (resetting the param-
eters, etc.)
LED symbol
Details
JW-20FL5/T
Z-336J
JW-50FL
LN LNK Lit when communicating normally.
TX TX Lit when sending data.
RX RX Lit when receiving data.
12 V 12 VDC Lit when 12 VDC power is present. (This indicator cannot be used with JW-20FLT.)
T TEST Lights while in the test mode. (Is normally OFF.)
PE PER Lights when the parameter settings are abnormal.
HE HER Lights when the module has an error.
S0 to S7 S0 to S7 Displays the node number when it is normal, and an error code when an error occurs.
LED name
Error
code
(H)
Error item Cause (parameter setting status)
S7 S6 S5 S4 S3 S2 S1 S0
OOOOOOO 01 Node number
Node number is outside the range of 1
to 254.
OOOOOO O02Token monitor time The token monitor time is 0.
OOOOO OO 04
Not available CU
(Only the JW-50FL.)
The host PC is a W70H/100H.
OOOO OOO08Area 1 address Area 1 is outside the allowed range.
*
OOOO OO 09 Area 1 size Area 1 is larger than 8K bits.
OOOO O O0AArea 2 address Area 2 is outside the allowed range.
OOOO O 0B Area 2 size Area 2 is larger than 8K words.
OOOO O0EArea 1 PC address
The top address of area 1 is outside
the allowed range.
OOOO 0F Area 2 PC address
The top address of area 2 is outside
the allowed range.
OOO OOOO 10
Doubled node
number
The same node number was assigned
to more than one node.
OOO OOO 11
Doubled common
memory address
This node's transmission area 1 (or
2) is used by another node. *
OO OOOOO 20 Range of area 1
*
When the JW20H and J-board (Z-300
series) is used for a PC, any area is set
for file 1 though there is no file 1.
OO OOOO 21 Range of area 2
OO OOO O22Range of each table
OO OOO 23
Rang e of the
transmission buffer.
JW-20FL5
S0
S1
S2
S3
S4
S5
S6
S7
HE
PE
T
12V
RX
TX
LN
(JW-50FL)
JW-50FL
S0
S1
S2
S3
S4
S5
S6
S7
LNK
TX
RX
DC12V
TEST
PER
HER
(JW-20FLT)(JW-20FL5) (Z-336J)
: Light, : Light off
Error code of LED (S0 to S7)
* Related to the cyclic transfer