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18.2 PROGRAM EXAMPLE 1
(specifying a hexadecimal data display format)
The following program example specifies a hexadecimal display format
for current values and setting values which display at the "Monitor/Test"
screen. In this program example, system information is assigned from
D50 to D54 and from M50 to M64.
M8002
MOV
K50
D8300
System information (system No.1) is set at D50 to D54.
Initial pulse
MOV
K50
D8301
System information (system No.2) is set at M50 to M64.
M8000
Specifies a hexadecimal display format for current values which appear
M58
at the Monitor/Test screen.
RUN monitor
END
18.3 PROGRAM EXAMPLE 2
(SPECIFYING A DECIMAL DATA DISPLAY FORMAT)
The following program example specifies a decimal display format for
current values and setting values which appear at the "Monitor/Test"
screen. In this program example, system information is assigned from
D50 to D54 and from M50 to M64.
M8002
MOV
K50
D8300
System information (system No.1) is set at D50 to D54.
Initial pulse
MOV
K50
D8301
System information (system No.2) is set at M50 to M64.
M8000
Specifies a decimal display format for current values which appear at
M58
the Monitor/Test screen.
RUN monitor
19. OPERATION ERROR MESSAGES AND
CORRECTIVE ACTIONS
The following is a list of error messages which the system displays
after an operation is performed.
Relevant Menu Screen
English
This operation is
All menus
protected by the keyword
The keyword
is not set
Keyword
Incorrect Keyword!
Monitor/test
PLC is running
(setting change*1)
Keyword (setting
Fatal error
change)
*1. The setting value can also be changed when the PLC is in RUN mode.
Mitsubishi Electric Automation, Inc.
19.1 WHEN A "FATAL ERROR OCCURRED" MESSAGE
Operation is possible with the "Level C" or "Level B" keyword function
restrictions. However, the system is probably in one of the statuses
described below. Check these statuses in the order shown below, and
take the appropriate corrective action.
1. Perform an error check at the display module, and if an error is
If a program error is active:
The fatal error was probably activated due to a program error. Use
GX Works2 to correct the program.
If no program error is active:
There may be a problem with the PLC's memory content. Perform the
following procedure.
1. Use GX Works2 to perform a program memory all-clear.
2. Rewrite the program.
3. Stop the PLC, turn the power ON, display the "Error Check" screen
2. If the "Fatal error occurred" message still appears after
Turn the power OFF and disconnect expansion board connectors
Turn the power ON again at the main unit, display the "Error Check"
Corrective Action
screen again, and check if the "Fatal error occurred" message appears.
Cancel the keyword, then
attempt the operation again
1. If the "Fatal error occurred" message appears: The main unit
No keyword has been
registered. Keyword
cannot be registered from
the display module. A
2. If the "Fatal error occurred" message does not appear: Turn the
programming tool such as
GX Works2, etc., is required
to register keyword.
The entered keyword does
not match the registered
keyword. Verify the
registered keyword, then
enter the correct keyword.
Stop the PLC, then attempt
the operation again.
Contact Mitsubishi Electric
at Amzsupport@meau.com
APPEARS
active, take the appropriate corrective action.
and check to refer to if the "Fatal error occurred" message appears.
If the "Fatal error occurred" message appears, perform the
„
„
corrective action described at item "2" below.
If the "Fatal error occurred" message does not appear, set the
„
„
PLC to a RUN state, then check again if the message appears.
If the message appears, a watchdog timer error has probably
occurred. In this case, the program should be re-examined.
performing the corrective actions described in item 1 above,
perform the following procedure to check for symptom
changes.
hardware may have failed. Contact Mitsubishi Electric at
Amzsupport@meau.com.
power OFF, connect the extension devices, then operate the system
again to check for errors. If the problem persists, there may be main
unit or extension device hardware failure. Contact Mitsubishi Electric
at Amzsupport@meau.com.
FX3G-5DM QUICK START MANUAL
17
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