Mitsubishi QJ71C24N User Manual page 345

11 TROUBLESHOOTING
Error code
Error
(Hexa-
decimal)
Dedicated
instructions
7FF0
H
simultaneous
execution error
7FF1 Control data error
H
Communication
7FF2 protocol setting
H
error
7FF3
H
to System error
7FF4
H
Processing
cancelled due to
mode switching,
7FF5
H
transmission
sequence
initialization, etc.
Simultaneous
7FF7
H
access error
7FF8
H
System error
7FFF
H
B000
H
⎯
to
BFFF
H
C000
H
⎯
to
CFFF
H
D000
H
⎯
to
DFFF
H
E000
H
⎯
to
EFFF
H
F000
H
⎯
to
FFFF
H
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Description
• Executed dedicated instructions
simultaneously.
• Setting value is incorrect.
• Setting value is out of range.
• Instruction cannot be executed with the
current communication protocol.
• The OS of the Q series C24 detected
some error.
• The processing in operation was
cancelled due to execution of the
following:
<Mode switching, transmission sequence
initialization, reception data clear (by
buffer memory), user frame use
enable/disable designation, UINI
instruction, programmable controller
CPU information clear>
• Multiple external devices accessed a
remote station on the same network at
the same time.
• The OS of the Q series C24 detected
some error.
• Errors detected by the CC-Link module
• Errors detected by the Ethernet module
• Errors detected by the CC-Link IE Field
Network module
• Errors detected by the CC-Link IE
Controller Network module
• Errors detected by the MELSECNET/H,
MELSECNET/10 network system
1 Take corrective action in the following procedure.
1) Check whether the Q series C24, power supply module and CPU module are
mounted correctly on the base unit.
2) Check whether the operating environment of the Q series C24 is within the
general specifications range of the CPU module.
3) Check whether the power supply capacity is sufficient or not.
4) Check whether the hardware of the Q series C24, CPU module and base unit
are normal according to the manuals of the corresponding modules.
If any module is faulty, please contact your local Mitsubishi service center or
representative for repair.
5) If the problem cannot be solved through the above steps, please consult your
local Mitsubishi service center or representative, explaining a detailed
description of the problem.
Signal
Corrective action
name
• Do not use dedicated instructions
⎯
simultaneously.
• Correct the setting value in the control
⎯
data.
• Correct the setting value of the
⎯
communication protocol.
⎯
( 1)
• Do not execute these functions during
⎯
any other processing.
• Multiple external devices must not
⎯ access a remote station on the same
network at the same time.
⎯
( 1)
• Take corrective action by referring to
⎯
the CC-Link Master/Local Module
User's Manual.
• Take corrective action by referring to
⎯
the Ethernet Interface Module User's
Manual.
• Take corrective action by referring to
⎯
CC-Link IE Field Network User's
Manual.
• Take corrective action by referring to
⎯
CC-Link IE Controller Network
Reference Manual.
• Take corrective action by referring to
⎯
MELSECNET/H, MELSECNET/10
network system reference manual.
MELSEC-Q
Protocol
Non
Bidire- Pre-
MC Proce-
ctional defined
dure
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