![background image](http://html.mh-extra.com/html/omron/c200hw-clk21/c200hw-clk21_operation-manual_742483183.webp)
158
Checking Data Link Status
Section 5-4
Issuing the FINS Command from CVM1, CV-series, CS/CJ-series, and CQM1H-series PLCs
Data links can be stopped by sending the FINS command “STOP.” The node
to which the FINS command is issued must be participating in the data link.
5-4
Checking Data Link Status
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.
5-4-1
LED Indicators
Check the LINK and M/A indicators on the front of the unit.
The LNK indicator will be lit at all node participating in the data links as long
as operation is normal. The data link mode (manual/automatic) can be
checked using the M/A indicator. See
9-1 Troubleshooting Using Indicators
for
details.
5-4-2
Data Link Status Area
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.
The number of words used for data link status and the information that is
reflected depends on the setting (8-bit or 4-bit format) for the data link status
storage format specification in the DM Parameters Area, as shown in the fol-
lowing diagram.
See
9-2 Status Area and Troubleshooting
for troubleshooting procedures and
see
Data Link Status Storage Format (CS/CJ Series Only)
for details on set-
ting the data link status storage format in the DM Parameters Area when
using CS- and CJ-series PLCs.
Node in data links
FINS command:
RUN/STOP
CVM1, CV,
CS/CJ, or
CQM1H
RUN
ERC
INS
SD
ERH
LNK
RD
TER
M/A
CLK21
C200HX/HG/HE PLCs CVM1 and CV-series PLCs
CS-series PLCs
CJ-series PLCs
CQM1H-series PLCs
RUN
ERC
INS
SD
ERH
LNK
RD
TER
M/A
CLK21
CLK21-V1
RUN
CLK21-V1
ERC
INS
ERH M/A LNK
RD
TER
SD
Make sure that the LNK
indicator is ON at nodes
participating in the active data
links.
Name
Color
Status
Contents
LNK
(data link)
Yellow
ON
Participating in data links.
Flashing
Data link table setting error
OFF
Not in data links or data links are inactive.
M/A
(data link
mode)
Yellow
ON
Manual
Note:
This indicator will
always be OFF when the
data links are not active.
OFF
Automatic
Содержание C200HW-CLK21
Страница 3: ...iv ...
Страница 9: ...x ...
Страница 12: ...xiii TABLE OF CONTENTS Index 367 Revision History 373 ...
Страница 13: ...xiv ...
Страница 19: ...xx ...
Страница 57: ...32 Application Precautions Section 1 5 Example CX Programmer Response Timeout Setting ...
Страница 69: ...44 Message Service Procedure Section 2 2 ...
Страница 111: ...86 Constructing Networks with Repeater Units Section 3 4 ...
Страница 154: ...129 Setting Data Links Section 5 2 Device Information Setting Data Link Tables ...
Страница 261: ...236 Response Codes Section 6 7 ...
Страница 297: ...272 Message Delay Times Section 8 4 ...
Страница 353: ...328 Handling Precautions Section 9 6 ...
Страница 364: ...339 Changing the Data Link Tables with Active Data Links Section 10 2 ...
Страница 365: ...340 Changing the Data Link Tables with Active Data Links Section 10 2 ...
Страница 369: ...344 Standard Models Appendix A ...
Страница 391: ...366 Using the Relay Terminal Block Appendix C ...
Страница 397: ...372 Index ...
Страница 401: ...376 Revision History ...