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146
Status Information and Troubleshooting
Section 9-2
9-2-2
Error Processing
Data Link Status: abyDataLinkStatus [ ]
Note
Data link status can also be monitored from the CLK Data Link Setting Utility.
Bit status
Probable cause
Probable remedy
PC’s CPU Unit error is 1: ON
A fatal PC error, non-fatal PC error,
or a watchdog timer error has
occurred.
Refer to the PC’s operation manual
and correct the error. If the error
occurs again, replace the PC.
The Unit is mounted to a non-com-
patible PC.
Mount onto the correct PC.
Data Link Communications Error
Status is 1: ON
The relevant node is not in the Net-
work.
Enter the node in the Network.
A communications error has
occurred as a result of noise.
Conduct an echoback test using the
Controller Link Support Software
and if this does not correct the error,
check the usage environment.
A communications error has
occurred.
and troubleshoot
accordingly.
Data link participation is 0: OFF
The relevant node is not part of data
links.
Enter the relevant node in data
links. If an error occurs, refer to
Node Cannot Participate
in Data Link
and troubleshoot
accordingly.
There are no active data links in the
Network.
Activate the data links.
Offset error is 1: ON
The offset is greater than the num-
ber of send words at the relevant
node.
Check the number of send words at
the relevant node, the number of
receive words at the local node and
the offset, then reset the data link
table correctly.
Receive area short is 1: ON
The send area at the relevant node
is larger than the receive area and
some data cannot be received.
When the intention is not to receive
all data, use as is (data that cannot
be received will be read and dis-
carded.)
When it differs from the intended
data link, check the number of send
words at the relevant node, the
number of receive words at the local
node and the offset, then reset the
data link table correctly.
Receive area remaining is 1: ON
The send area at the relevant node
is smaller than the receive area and
some of the area will be unused.
When the intention is to leave some
space in the receive area, use as is
(the surplus receive area will be
unspecified data.)
When it differs from the intended
data link, check the number of send
words at the relevant node, the
number of receive words at the local
node and the offset, then reset the
data link table correctly.
Summary of Contents for SYSMAC 3G8F7-CLK12-EV1
Page 2: ......
Page 4: ...iv ...
Page 20: ...xx Conformance to EC Directives 6 ...
Page 48: ...28 Applications Precautions Section 1 4 Example CX Programmer Response Timeout Setting ...
Page 68: ...48 Backup Power Supply Wiring Optical Ring Systems Only Section 2 4 ...
Page 74: ...54 Using the C Library Section 3 2 ...
Page 110: ...90 Changing the Data Link Tables with Active Data Links Section 5 5 ...
Page 187: ......