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APPX
Appendix 1 Troubleshooting by Symptom
211
A
The transmission status is disconnected or unconfirmed
If the CC-Link IE Field Network Basic diagnosis transmission status is disconnected or unconfirmed, then check the following
items.
Check Ethernet
Check the following items.
*1 Devices on Ethernet retain ARP cache correspondence tables for IP addresses and MAC addresses. Accordingly, replacing devices on
the circuit with those that have the same IP address means that the MAC address retained in the ARP cache and that of the replaced
device will not match, which may prevent normal communications. ARP cache is updated after a device reset or after a set time. Note
that this time depends on the device.
Confirm CC-Link IE Field Network Basic
Check the following items.
Check item
Corrective action
Are master station/slave station IP addresses and subnet masks correctly set?
Correct the master station/slave station IP addresses and subnet masks.
Is there any duplication of IP addresses?
Check whether a device with the same IP address as the IP address of this
product is connected, and then change to an IP address that does not overlap.
Are there any devices with IP addresses that are the same as master station/
slave stations within the same network address?
Change master station/slave station IP addresses to addresses that do not
overlap.
Do master station and slave station network addresses match?
• Correct IP address and subnet masks so the master station and slave
station IP addresses match.
• Correct so the master station/slave station subnet masks have the correct
values and match.
Is access blocked?
Review firewall and other security settings.
In the following settings, is access from the slave station blocked?
• [Basic Parameter]
[External Device Cooperate Applicable Settings]
[Security Settings]
[IP Filter Settings]
Review settings so access from the slave station IP address and UDP
communications pass.
Before the error occurred, has the device on the circuit (slave station, hub,
etc.) been exchanged with a device with the same IP address from before the
exchange?
If a device on the circuit (slave station, hub, etc.) was exchanged with a device
with the same IP address from before the exchange, take one of the following
measures.
• Wait until the ARP cache update has run. (Wait periods depend on the
device.) )
• Restart all devices on the line.
Check item
Corrective action
In the CC-Link IE Field Network Basic link scan time, is the "Current" value set
to "0 ms"? (
Page 90 CC-Link IE Field Network Basic diagnostics)
Correctly wire the Ethernet cable.
Содержание MELIPC MI5000 Series
Страница 1: ...MELIPC MI5000 Series User s Manual Application MI5122 VW ...
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Страница 18: ...16 MEMO ...
Страница 22: ...20 1 DIAGNOSTIC AND MAINTENANCE FUNCTIONS 1 1 Watchdog Timer WDT Function MEMO ...
Страница 42: ...40 5 iQSS FUNCTION MEMO ...
Страница 146: ...144 11 SECURITY FUNCTION 11 3 IP Filter Function MEMO ...
Страница 148: ...146 12 MELSOFT PRODUCT AND GOT CONNECTION FUNCTION 12 1 Connection Method MEMO ...
Страница 150: ...148 13 SYSTEM COUNT FUNCTION MEMO ...
Страница 152: ...150 14 TIMER EVENT FUNCTION MEMO ...
Страница 160: ...158 15 OS LINKING FUNCTIONS 15 3 Inter OS Event Notification Function MEMO ...
Страница 162: ...160 16 SERIAL INTERFACE SWITCHING FUNCTION MEMO ...
Страница 165: ...17 BASIC PARAMETERS 17 1 Basic Parameter List 163 17 Operation related setting Window ...
Страница 170: ...168 17 BASIC PARAMETERS 17 1 Basic Parameter List RAS setting Window ...
Страница 174: ...172 17 BASIC PARAMETERS 17 1 Basic Parameter List External device connection settings Window ...
Страница 177: ...17 BASIC PARAMETERS 17 1 Basic Parameter List 175 17 External device connection applicable settings Window ...
Страница 313: ...APPX Appendix 10 List of VxWorks Components 311 A MEMO ...
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