Checking Data Link Status; Led Indicators; Data Link Status Area - Omron SYSMAC CS1W-CLK13 Operation Manual

Checking Data Link Status

5-4 Checking Data Link Status
5-4-1

LED Indicators

Optical Ring Controller Link Unit
(CLK12 for H-PCF cable, CLK52 for GI cable)
CLK12-V1
RUN PS
ERC ERH
RING MA
INS LNK
SD RD
Make sure that the LNK
indicator is ON at nodes
participating in the active data
links.
5-4-2

Data Link Status Area

130
There are two methods for checking the status of active data links:
• Check the LED indicators on the front of the Units.
• Check the data link status area.
When using Controller Link Units in duplex operation, check the data link
operating status at the active Controller Link Unit. For details on checking the
operating status for duplex operation, refer to 10-6-2 Troubleshooting for
Duplex Systems Using Indicators.
Check the LNK, M/A, and RING indicators on the front of the unit.
CS-series PLCs
CLK52-V1
Name Color
LNK Yellow
(data link)
M/A Yellow
(data link
mode)
RING Yellow
(transmission
path format)
The LNK indicator will be lit at all nodes participating in the data links as long
as operation is normal. The mode (manual/automatic) of any node active in
the network can be checked using the M/A indicator, regardless of whether
that node is participating in the data links. Using the RING indicator, it is also
possible to check the transmission path format set for an active network, as
well as the status of cables when in token-ring mode. See 10-1 Troubleshoot-
ing Using Indicators for details.
The data link status area can be used to check for errors when data link does
not operate normally even though no abnormality has been detected by the
PLC's CPU Unit or the Controller Link Unit. The data link status area contains
the data link status information shown below. This status information is stored
in the same words for CS-series, CVM1, and CV-series.
CVM1 and CV-series PLCs
Optical Ring Controller Link Unit
(CLK12 for H-PCF cable, CLK52 for GI cable)
RUN PS
ERC ERH
RING MA
INS LNK
SD RD
Status
ON Participating in data links.
Flashing Data link table setting error
OFF Not in data links or data links are inactive.
Data links active in
network.
ON Manual
OFF Automatic
ON Token-ring mode setting (cable normal)
Flashing Token-ring mode setting (cable discon-
nected)
OFF Token-bus mode setting
Section 5-4
Contents
Data links not active in
network.
Note: This indicator
will always be OFF
when the data links are
not active.