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3. PROCEDURE UP
TO DATA COMMUNICATIONS DESCRIBED IN THIS
GUIDEBOOK
MELSEC QnA
Check Item
ROM check
RAM check
Switch check
End of check
I
ROM/RAM/switch check contents
1
Check Contents Check
LED
LED Name
Normal
Checks if the ROM
is normal.
OFF
CH2.ERR
Checks if the RAM
is normal.
OFF
CHI .ERR
CH2.ERR one
OFF
2hecks if the switch
CH2-C/N
:he setting range.
OFF
CHI -C/N
settings are within
of the below
CHI
-P/S
CH2-P/S
OFF
All the checks are
0
CHI -SD.WAIT
complete.
CH2-SD.WAIT
-
Zrror
Error Processing
Check the mounting state of the
module
ON
ON
If the module is correctly mounted, contaci
-
and repeat the test.
your nearest Mitsubishi Electric service
center, dealer, or branch office.
Check the station
No.
switches.
-
ON
Station No. setting error.
ON
Transmission specifications setting error.
ON
Mode setting error.
Check the mode switches.
Check the transmission specifications
switches.
i
Normal
........
To end the test, perform item
@
below.
Error
...........
Turn OFF the power, then check the station switches, mode switches, transmission
specifications switches, etc. and set the switches correctly and repeat the test.
@
Ending the tests
(1) Turn OFF the power.
(2) Since the self loopback test is performed, set the CHI and CH2 mode switches
to
"F".
3 - 5
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