User manual

Troubleshooting
Extended Local I/O 5-47
Troubleshooting
Extended Local I/O 5-47
205 ControlNet configuration exceeds processor bandwidth.
IMPORTANT: Scheduled connections will be closed. You must cycle power,
save with RSNetWorx, or download the program to reopen the
connections.
Because the configuration software is unable to accurately predict all the
resources that the processor will require to execute your ControlNet
configuration software (based on the relative loading on the processor), this
fault code is used if the processor determines that your configuration (typically
when you accept Channel 2 edits) exceeds the processor’s available
bandwidth.
Typical causes of this error code include:
• receiving data from the ControlNet network faster than the ControlNet
PLC-5 processor can parse it
• performing I/O updates too frequently
• performing immediate ControlNet I/O ladder instructions too frequently.
• Reduce the number of ControlNet I/O map table entries.
Possible ways to do this include:
- using a discrete rack connection instead of multiple
discrete module connections
- combining multiple I/O racks into a single I/O rack
- putting peer-to-peer data in contiguous blocks in the
data table so that less send and receive scheduled
messages are required
• Increase your Network Update Time and/or increase the
Requested Packet Intervals for scheduled data transfers in
your I/O map table.
• Increase your ladder program scan by either adding more
logic or by increasing the Communications Time SLice (S:77).
• Reduce the number or frequency of immediate ControlNet I/O
ladder instructions that are performed.
206 This error code is reserved. Contact your local Rockwell Automation representative if you get
this message.
207 This error code is reserved. Contact your local Rockwell Automation representative if you get
this message.
208 Too many pending ControlNet I/O connections. Delete one or more I/O map table entries and reaccept edits for
the ControlNet configuration.
This fault
code:
Indicates this fault: Take this corrective action:
Fault Codes