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APPX
Appendix 1 Troubleshooting by Symptom
213
A
Transmission status repeats disconnection and reconnection
In the event that transmission state repeats disconnection and reconnection, then check the following items.
Check Ethernet
Check the following items.
*1 Depending on the hub, communications may be stopped as a result of a high communication load. In these cases, consult with the
manufacturer of the hub being used.
*2 In the event that the PC or this product has been re-connected to the switching hub or the switching hub was replaced, re-reading of the
MAC address may take some time. In these cases, wait a while and try again or turn the power of the hub OFF and ON.
Confirm CC-Link IE Field Network Basic
Check the following items.
Check item
Corrective action
Is the Ethernet cable fully inserted into the connector?
• Properly lock the Ethernet cable.
• Check that the Ethernet cable is also correctly connected to the other
devices and hubs.
Does the used cable meet Ethernet specifications?
Check the cable specifications.
Is the Ethernet cable broken or nearly broken?
Replace the Ethernet cable.
Is there a powerful source of noise near the Ethernet cable?
• Increase the distance of the Ethernet cable from the source of the noise.
• Replace with a cable with better noise shielding.
Is there any packet loss or errors on other devices or hubs?
Check the manual of the device that is producing errors or packet loss, and
then take measures.
Is a hub that can handle communication speeds used by the connected
master station/slave station being used?
Replace with a hub that can handle the communication speeds used by the
connected master station/slave station.
Are there any delays in response, error responses, or no responses with
functions using the Ethernet port (CH1) such as FTP, socket communications,
or SLMP?
Stop the function. Alternatively, review settings, such as by increasing the
interval between executions of these functions or decreasing their frequency.
Check item
Corrective action
Are the master station timeout settings too short?
Set the master station timeout settings to a longer value.
Are any faults being generated by the slave station?
Perform troubleshooting for the slave station.
On the same circuit, is CC-Link IE Field Network Basic running at the same
time on a different network address?
Separate into a separate circuit network and create a CC-Link IE Field
Network Basic.
Are communications with other Ethernet devices being carried out on the
same line?
Separate the CC-Link IE Field Network Basic network and other Ethernet
device network to create CC-Link IE Field Network Basic.
Are any of the following functions being run?
• Access from MI Configurator
• Access using a virtual Ethernet
Stop the function. Alternatively, review settings, such as by increasing the
interval between executions of these functions, decreasing their frequency, or
reducing the range.
Are groups excessively separated?
If the number of stations is 16 or less, review the minimum number of groups,
and, for example, form one group.
Are slave stations with a slow response time configured to groups with a fast
link scan time? Alternatively, are slave stations with a fast response time
configured to groups with a slow link scan time?
• Refer to the manual of the slave stations to be used and check the standard
response time.
• Check and correct the group number of slave stations in the network
configuration settings.
Summary of Contents for MELIPC MI5000 Series
Page 1: ...MELIPC MI5000 Series User s Manual Application MI5122 VW ...
Page 2: ......
Page 18: ...16 MEMO ...
Page 22: ...20 1 DIAGNOSTIC AND MAINTENANCE FUNCTIONS 1 1 Watchdog Timer WDT Function MEMO ...
Page 42: ...40 5 iQSS FUNCTION MEMO ...
Page 146: ...144 11 SECURITY FUNCTION 11 3 IP Filter Function MEMO ...
Page 148: ...146 12 MELSOFT PRODUCT AND GOT CONNECTION FUNCTION 12 1 Connection Method MEMO ...
Page 150: ...148 13 SYSTEM COUNT FUNCTION MEMO ...
Page 152: ...150 14 TIMER EVENT FUNCTION MEMO ...
Page 160: ...158 15 OS LINKING FUNCTIONS 15 3 Inter OS Event Notification Function MEMO ...
Page 162: ...160 16 SERIAL INTERFACE SWITCHING FUNCTION MEMO ...
Page 165: ...17 BASIC PARAMETERS 17 1 Basic Parameter List 163 17 Operation related setting Window ...
Page 170: ...168 17 BASIC PARAMETERS 17 1 Basic Parameter List RAS setting Window ...
Page 174: ...172 17 BASIC PARAMETERS 17 1 Basic Parameter List External device connection settings Window ...
Page 313: ...APPX Appendix 10 List of VxWorks Components 311 A MEMO ...
Page 315: ...I 313 MEMO ...
Page 319: ......