User`s manual

DeviceNet (Master) Function
8-36
8
8-6 Error handling
When an error occurs during communication with the JW-32CUM1 DeviceNet communication, check the
error details by referring to the display lamps and the diagnostic data table. Then take the appropriate action.
8-6-1 Display lamp
The operation details for DeviceNet
communication are shown by the lamps on the
JW-32CUM1, which will light, blink, or go out (see
the DN-M section on the display panel).
JW-32CUM1
DN - MCM - MCU
FLT
CM1
CM2
DN-M section on the display panel.
MS
NS
SD
RD
FT
PT
S7 to S0
Module status. For details, see the table below.
Network status.
Lights when sending data.
Lights when receiving data.
Lights when a hardware error occurs on the JW-32CUM1
(DeviceNet communication).
Lights when the protected mode is selected.
Displays the error code and error node address when the
DeviceNet communication system has an error.
Lamp name
Operation details
For details,
- see the table below.
Module and network status details
Lamp
name
Color Status Details
MS
(Module
Status)
Green
Lit Normal The JW-32CUM1 (DeviceNet section) is normal.
Blinking
Status not set
yet
Reading switch setting.
Red
Lit Hardware error
The JW-32CUM1 (DeviceNet section) has a hardware
error.
Blinking Setting error Wrong switch setting.
--- OFF
No power
supply.
- Hardware error of the JW-32CUM1 (DeviceNet
section).
-Nopower supplied to the JW-32CUM1 (DeviceNet
section)
- Resetting
- Waiting to start initial processing.
NS
(Network
Status)
Green
Lit
Online/commu-
nication
connection
complete
The DeviceNet network is normal (communication is
established)
Blinking
Online/No
communication
The DeviceNet network is normal, but communication
is not established yet.
Red
Lit
Communicatio-
n error 1
- Communication error (an error was detected because
network communication was not established)
- Duplicate node address
- "Busoff" detected.
Blinking
Communicatio-
n error 2
Communication error in one or more slaves.
--- OFF
Offline/power
OFF status.
There is no node other than the JW-32CUM1.