Mitsubishi GT16 User Manual page 169

(4) GOT restoration procedure
Follow the procedures below starting from (a) and in order to check if the GOT is restored.
If the GOT is not restored, proceed to the next item.
Check item
(a) Press the GOT reset switch.
Restored Not restored
(Proceed to (b).)
*2, 3
(b) Power the GOT ON/OFF.
Restored Not restored
(Proceed to (c).)
(c) Reset or power ON/OFF the PLC
CPU.
Restored Not restored
(Proceed to (d).)
(d) Power the GOT and PLC CPU ON/
OFF simultaneously.
Restored Not restored
(Proceed to (e).)
(e) Connect the cable again.
Restored Not restored
(Proceed to (f).)
(f) Reinstall the project data.
Restored Not restored
(Proceed to (g).)
(g) Reinstall the OS.
Restored Not restored
(Proceed to (h).)
(h) Take the action described in the
"Action" column.
Restored Not restored
(Proceed to (i).)
(i) Replace the unit/module.
Restored Not restored
The GOT is not restored even by
performing (a) to (i).
*1 The GOT reset switch does not operate when the bus connection is used.
*2 When the bus connection is used, do not power the GOT ON again (OFF
When powering the GOT ON again (OFF
*3 By powering OFF the GOT, an error occurs in the control station when the MELSECNET/H connection is used or in the master
station when the CC-Link connection (intelligent device station) is used.
(5) Troubled product investigation
When malfunction of the GOT is not improved, please contact your local Mitsubishi (Electric System) Service.
Depending on the problem details, we may ask you to return the troubled product to us.
In that case, please attach the GOT status check sheet, GOT installation status check sheet, and the system
configuration check sheet filled out with details of your system.
Cause
*1, 3
The GOT may have malfunctioned
temporarily due to noise.
The cable connection may be faulty.
Data may have been destroyed by an
action such as powering the GOT OFF
during the installation of project data or
OS.
The GOT may have malfunctioned
temporarily due to noise.
The hardware of the unit/module may be
faulty.
ON), power OFF the PLC before that.
Action
Take the action of (4)-(h).
Securely connect the cable.
If an error occurs again, proceed to (5)
Troubled product investigation.
Do not power the GOT OFF while
transferring data.
If an error occurs again, proceed to (5)
Troubled product investigation.
Take the action with referring to GOT
installation status check sheet.
Install the unit/module with which the
GOT malfunctioned again to see if the
unit/module caused the malfunction.
After checking, proceed to (5) Troubled
product investigation.
Proceed to (5) Troubled product
investigation.
ON) while the power of the PLC is ON.
10.1 GOT Restoration Sheet
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