16
TROUBLESHOOTING
16.3 Actions to be Taken When the ERR. LED is On or Flashing
16 - 52
9
DEVICE DESCRIPTION
10
MULTIPLE CPU SYSTEM
OVERVIEW
11
MULTIPLE CPU SYSTEM
CONFIGURATION
12
CONCEPT OF MULTIPLE
CPU SYSTEM
13
COMMUNICATIONS
BETWEEN CPU
MODULES
14
PARAMETERS ADDED
FOR MULTIPLE CPU
SYSTEMS
15
STARTING A MULTIPLE
CPU SYSTEM
16
TROUBLESHOOTING
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Error code Error details and cause Corrective action
3100
In the multiple CPU system, a CC-Link IE controller network module
controlled by another CPU is assigned to the start I/O No. in the CC-
Link controller network parameter setting.
• Delete the network parameters for the CC-Link IE controller network
module controlled by another CPU.
• Change the setting to the start I/O No. of the CC-Link IE controller
network module controlled by the host CPU.
A network parameter of a CC-Link IE controller network module acting
as a normal station was changed to Control station. Or a network
parameter of a CC-Link IE controller network module acting as a
control station was changed to Normal station. (Network parameters
are reflected to the module by resetting.)
Reset the CPU module.
• The number of modules specified with the CC-Link IE controller
network parameter does not match the number of modules actually
mounted.
• The start I/O No. specified with the CC-Link IE controller network
parameter is different from the actual I/O No.
• Invalid data are included in the parameters.
• The network type of the CC-Link IE controller network was changed.
(To change the network type, the status must be changed from
RESET to RUN.)
• Check the network parameters and the actual mounting status, and if
any difference is identified, make them matched. If a network
parameter is corrected, it must be written to the CPU module.
• Check the setting for the number of extension base units.
• Check the connected conditions of the extension base unit(s) and
extension cables. If a GOT is connected to the main or extension
base unit in the bus topology, also check the connection status.
• If the error occurs even after the above checks, replace the module
because the hardware may be faulty. Or, consult your local Mitsubishi
service center or representative, explaining the details of the
problem.
• A CC-Link IE controller network module is assigned to the start I/O
No. in the MELSECNET/H network parameter setting.
• A MELSECNET/H module is assigned to the start I/O No. in the CC-
Link IE controller network parameter setting.
• No CC-Link IE controller network parameters are set even though a
CC-Link IE controller network module is mounted.
• No MELSECNET/H network parameters are set even though CC-
Link IE controller network module(s) and MELSECNET/H module(s)
are mounted.
The network parameters were written to a drive different from a valid
one.
Write the network parameters to a valid drive.
In the multiple CPU system, a MELSECNET/H module controlled by
another CPU is assigned to the start I/O No. in the MELSECNET/H
network parameter setting.
• Delete the MELSECNET/H network parameter for the MELSECNET/
H module controlled by another CPU.
• Change the setting to the start I/O No. of the MELSECNET/H module
controlled by the host CPU.
A link parameter of a MELSECNET/H module acting as a normal
station was changed to Control station. Or a link parameter of a
MELSECNET/H module acting as a control station was changed to
Normal station. (Link parameters are reflected to the module by
resetting.)
Reset the CPU module.
• The number of modules specified with the MELSECNET/H
parameter does not match the number of modules actually mounted.
• The start I/O No. specified with the MELSECNET/H parameter is
different from the actual I/O No.
• Invalid data are included in the parameters.
• The station type of the MELSECNET/H was changed while power is
on. (To change the station type, the status must be changed from
RESET to RUN.)
• Check the network parameters and the actual mounting status, and if
any difference is identified, make them matched. If a network
parameter is corrected, it must be written to the CPU module.
• Check the setting for the number of extension base units.
• Check the connected conditions of the extension base unit(s) and
extension cables. If a GOT is connected to the main or extension
base unit in the bus topology, also check the connection status.
• If the error occurs even after the above checks, replace the module
because the hardware may be faulty. Or, consult your local Mitsubishi
service center or representative, explaining the details of the
problem.
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