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(6) Precautions for network configurations
(a) Precautions for using two Ethernet channels (Q12DCCPU-V only)
When using two channels as Ethernet ports, two different network addresses
must be set for CH1 and CH2 of the C Controller module.
In the above case, a response to the message received through each channel is
sent as follows:
• Messages (including response packets such as ping) to the device having the
same network address as CH1 are sent from CH1.
• Messages (including response packets such as ping) to the device having the
same network address as CH2 are sent from CH2.
(7) Relation between system tasks and the system watchdog timer, user
watchdog timer, and link device refresh cycles
When using any of the following functions, set a sufficiently long time for each of the
system watchdog timer, user watchdog timer, and link device refresh cycles.
• Shell command
• Workbench/Tornado connection
• File access
• Mount/unmount of CompactFlash card
• Ethernet communications
• NFS server communication
If any of the above is used, CPU utilization for a system task with high priority may
increase and a system watchdog timer error, a user watchdog timer error, and link
refresh timeout may occur more frequently.
For the link refresh timeout, the rate of occurrence may also increase when bus
interface driver processing (connections with peripheral devices or communication
with an intelligent function module, etc.) is used.
(8) Precautions for the Wind River Systems product
The C Controller module has an embedded real-time operating system, VxWorks,
made and sold by Wind River Systems, Inc. in the United States.
We, Mitsubishi, make no warranty for the Wind River Systems product and will not be
liable for any problems and damages caused by the Wind River Systems product
during use of the C Controller module.
For the problems or specifications of the Wind River Systems product, refer to the
corresponding manual or consult Wind River Systems, Inc.
Contact information is available on the following website.
www.windriver.com
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