Omron CS1W-FLN22 Operation Manual page 173

Troubleshooting with Indicators
RUN HER PER
Lit --- Flashing The Unit was removed because it was con-
Probable cause
nected to an FL-net (Ver. 1.00) network.
Communications have stopped due to a
LAN controller error (LAN Controller Error
Flag: ON)
A PLC area cannot be accessed (data allo-
cation error).
Correction
FL-net Units (Ver. 1.00) cannot operate on
the same network as other FL-net Units.
Check the configuration of the network and
make sure it consists solely of compatible
FL-net Units.
Noise or other factor may be affecting net-
work communications. Check the ground-
ing of the network equipment and devices.
Restart the CPU Unit if this error occurs.
Re-check the system settings on the Unit.
Check to see if an area not in the PLC, an
unusable area (i.e., the number of EM
banks or where files are present), or an
area where data cannot be written is being
accessed.
Check that local node addresses are not
allocated in an other node setup area.
Section 10-1
147