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(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).)
(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
ON.
When powering the GOT ON again (OFF
*3:
By powering OFF the GOT, an error occurs in the control station when the MELSECNET/H or MELSECNET/10
connection is used or in the master station when the CC-Link connection (intelligent device station) is used.
Cause
*1, 3
*2, 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.
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), power OFF the PLC before that.
20.1 GOT Restoration Sheet
Action
ON) while the power of the PLC is
20
17
18
19
20
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Table of Contents
Troubleshooting
