Mitsubishi Electric AE-200A Service Handbook page 76

[V Troubleshooting]
From
A
Is the length of each
LAN cable within 100
m (328 ft)?
Yes
Are the LAN cables
straight cables of
category 5 to 6e?
Yes
Are the link lamps*1 lit?
Yes
Are the IP addresses
correct and not
duplicated?
Yes
A router is not being
used?
Yes
Does the system
consist of
AE-200+AE-50+EW-
50?
No
The preliminary check is complete.
If you answered "No" for any of the above items, first remove the cause of that item and then check if the symptoms persist.
However, try your best to not turn on and off the power of the target devices (AE-200/AE-50/EW-50, PC of TG-2000A, and PLC)
many times.
If the symptoms still persist, refer to "V [1] Before performing failure diagnosis" and then perform the checks.
No
Replace the LAN cables with ones that are within 100 m
(328 ft). Reference) In the case of an optical cable, check
that the relevant standards are met.
Replace the LAN cables with ones that are straight cables
No
of category 5 to 6e (compatible with 100BASE-TX).
Reference) In the case of an optical cable, check that the
relevant standards are met.
If the link lamp of the AE-200/AE-50/EW-50, HUB, PC, or
PLC is not lit, try replacing the LAN cable, connecting to a
different port on the HUB, etc. Reference) If the link lamp on
No
the HUB is not lit, the HUB may have failed.
*1: A link lamp is a lamp for
* To check the link lamp of the AE-200/AE-50, you need to remove the cover.
indicating the link status of a
port. The display may differ
depending on the HUB.
Set IP addresses correctly. Check that an IP address is not
No
duplicated among any of the equipment connected to the
same network, and if an IP address is duplicated, fix the
setting.
No (A router is being used.)
Are the gateway address of the
router and the gateway address set
on the AE-200/AE-50/EW-50 the
same? Yes
Yes
Yes
(AE-200+AE-50+EW-50 system)
Is the transmission
delay time within 4,000
msec round trip?* 2
Yes
No
Set the correct gateway address.
* For the gateway address setting, check "5-2-6. Network
settings" in AE-200/AE-50 Instruction Book.
No
Change the network configuration so that the
transmission delay time between the HUB with
the AE-200 connected and the AE-50 is within
4,000 msec.
*2 For how to check the delay time, refer to "7-4
Checking the transmission delay time" of
Centralized Controller AE-200/AE-50 Installation
Manual.
72
To C
To B