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4 TROUBLESHOOTING
4.5 List of Error Codes
2220H The parameter setting is corrupted. Check the detailed information of the error by
executing module diagnostics using the engineering
tool, and write the displayed parameter. If the error
occurs again even after taking the above, the possible
cause is a hardware failure of the module. Please
consult your local Mitsubishi representative.
Parameter information
• Parameter type
2221H The set value is out of the range. Or the parameter of
the master station that requires the reset of the slave
station is changed.
• Check the detailed information of the error by
executing module diagnostics using the engineering
tool, and correct the parameter setting
corresponding to the displayed number.
• When the parameter No. is "0101", the cycle value
which is not applicable to the slave station is set in
"Fixed Scan Interval Setting of Inter-module
Synchronization" under "Inter-module Synchronous
Setting" in the [Inter-module Synchronous Setting]
tab of the "System Parameter" window. Refer to the
manual for the slave station used, and correct the
setting. When the "Network Synchronous
Communication" in "Network Configuration
Settings" under "Basic Settings" of the master
station is changed, power off and on or reset the
slave station.
Parameter information
• Parameter type
•I/O No.
• Parameter No.
• Network No.
• Station No.
24C0H to
24C3H
An error was detected on the system bus. • Take measures to reduce noise.
• Reset the CPU module, and run it again. If the error
occurs again even after taking the above, the
possible cause is a hardware failure of the module,
base unit, or extension cable. Please consult your
local Mitsubishi representative.
System configuration
information
•I/O No.
•Base No.
• Slot No.
•CPU No.
24C6H An error was detected on the system bus. • Take measures to reduce noise.
• Reset the CPU module, and run it again. If the error
occurs again even after taking the above, the
possible cause is a hardware failure of the module,
base unit, or extension cable. Please consult your
local Mitsubishi representative.
2600H The cyclic processing does not finish before the start
timing for the next inter-module synchronization cycle.
• Increase the value set in "Fixed Scan Interval
Setting of Inter-module Synchronization" under
"Inter-module Synchronous Setting" in the [Inter-
module Synchronous Setting] tab of the "System
Parameter" window so that the link scan time will
not exceed the inter-module synchronization cycle.
• Reduce the number of cyclic assignment points and
the number of connected slave modules, and
decrease the link scan time.
2610H An inter-module synchronization signal error
(synchronization loss) was detected.
• Take measures to reduce noise.
• Reset the CPU module, and run it again. If the error
occurs again even after taking the above, the
possible cause is a hardware failure of the module,
base unit, or extension cable. Please consult your
local Mitsubishi representative.
Error
code
Error details and causes Action Detailed Information
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