Download Safety Controller Ethernet Interface Module User`s Manual

Troubleshooting
MELSEC-WS
5. Troubleshooting
For information how to perform diagnostics on the MELSEC-WS safety controller
please refer to the Safety Controller Setting and Monitoring Tool Operating Manual.
Note
Check the LEDs of the module during troubleshooting.
Table 19: Troubleshooting for the WS0-GETH
Error
Cause
Possible remedy
The Setting and Monitoring Tool WS0-GETH has no power supply.
Establish the power supply.
does not connect to the Ethernet WS0-GETH is not in the same
Check the Ethernet wiring and network settings
interface module.
physical network as the PC.
on the PC and correct if necessary.
The PC is configured to another
Set the subnet mask on the PC to 255.255.0.0
subnet mask in the TCP/IP settings.
(factory setting of the WS0-GETH).
WS0-GETH has already been
Check the communication settings in the
configured once and has a fixed set
Setting and Monitoring Tool.
IP address or an IP address assigned
by a DHCP server that is not
recognized.
WS0-GETH does not supply any WS0-GETH is configured for data
Minimum one Ethernet connection needs to be
data.
transfer to programmable controller,
LED PWR  Green
but Ethernet communication is not yet programmable controller side, check Ethernet
LED LINK/ACT /
LED MS
Green
Red/Green
established. Set up Ethernet connection on
established or faulty.
cabling, check Ethernet connection settings on
Duplicate IP address detected.
programmable controller and in the Setting and
Another device on the network has
Monitoring Tool. If no Ethernet communication
the same IP address.
is required, disable the Ethernet
connections/PLC interfaces on the
WS0-GETH.
Adjust IP address and power cycle device.
WS0-GETH does not supply any Configuration required.
data.
LED PWR  Green
LED LINK/ACT /
LED MS
Configure the WS0-GETH and download the
Configuration download is not
configuration to the safety controller.
completed.
Wait until the configuration download has been
Green
completed.
Red (1 Hz)
WS0-GETH does not supply any No data set is activated.
Activate at least one data set for
data.
No Ethernet communication interface communication in auto update mode.
LED PWR  Green
is enabled.
LED LINK/ACT /
Green
LED MS  Green
WS0-GETH does not supply any WS0-GETH is in Idle mode.
CPU/application is stopped. Start CPU (change
data.
into Run mode).
LED PWR  Green
LED LINK/ACT /
LED MS
59
Green
Green (1Hz)