When The Err.led Is Off - Mitsubishi Electric MELSEC Q Series User Manual

9
TROUBLESHOOTING
9.3.2

When the ERR.LED is off

Any of the following is the possible cause.
Check box
Are the cables connected?
Are the connected
devices and switching hubs on?
Are settings for communication on
the connected devices correct?
Is there any error?
Is the Tag communication
start request (Y00) on?
Is the Tag communication start
process completion (X00) on?
Is the reserved tag
setting disabled? (Is "Reserved Tag"
disabled in Tag Parameter?)
For Class1 Tag communication
(1) For Class1 Tag communication in this section
For Class3 Tag communication
(2) For Class3 Tag communication in this section
For UCMM Tag communication
(3) For UCMM Tag communication in this section
• Tag communication is not started
• Tag communication is on but never communicated
• An error message was returned in Class3 or UCMM Tag communication
Start
Not
connected
Connected
Off,
or error
On, and no error
OFF
ON
OFF
ON
Enabled
Disabled
Figure 9.3 When the ERR.LED is off
Connect the cable with the EtherNet/IP module
properly.
Section 5.7 Wiring
Power on the connected devices and switching hubs.
Correct settings on the connected devices
for communication.
Connect the cables with the connected
devices properly.
Identify the error of the connected device and take
corrective actions.
Turn on the Tag communication start request (Y00).
After satisfying the execution conditions for the Tag
communication start request (Y00), turn it to on again.
Section 3.2.2 Tag communication start
request (Y00), Tag communication start
process completion (X00)
Disable the reserved tag setting.
Section 7.9.2 (2) Display and settings of the
"Producer Tag" window
Section 7.9.3 (2) Display and settings of the
"Consumer Tag" window
Section 7.9.4 (2) Display and settings of the
"Message Tag" window
9.3 When Tag Communication is Disabled
9.3.2 When the ERR.LED is off
9
9
- 4