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3 TROUBLESHOOTING
3.3 Checking the Network Status
Simple CPU communication diagnostics
The communication status of the simple CPU communication function can be checked with "Simple CPU Communication
Diagnostics".
[Diagnostics] [Simple CPU Communication Diagnostics]
*1 The destination is displayed when the simple CPU communication was performed with the RJ71EN71 and RnENCPU (network part).
*2 When the count exceeds 4294967295, counting is continued from 1 again.
Item Description
Set No. Displays the setting number of the simple CPU communication.
Comm Patn Displays the communication pattern (read/write) set with the parameters.
Comm Set Displays the communication setting (fixed) set with the parameters.
Tgt PLC No.
*1
Displays the communication destination set with the parameters.
Status Displays the communication status (preparing, communicating, communication stop, retry being executed,
monitoring, or communications impossible).
IP Address Displays the IP address of the communication destination set with the parameters.
Port No. Displays the port number of the communication destination set with the parameters.
Tgt PLC No. Displays the target PLC number set with the parameters.
Exe Intv [ms] (Prsnt) Displays the current value, the maximum value, and the minimum value of the execution interval in increments of ms.
The values will not be updated while the retry or monitoring at error is being executed. They will be "0" while
communication is stopped.
Exe Intv [ms] (Max)
Exe Intv [ms] (Min)
Norm Compl Displays the accumulated count of communications that have been completed successfully, completed with an error,
and retried.
• 0 to 4294967295: Accumulated count
*2
Err Compl
Retries
Latest Err Displays the error code of the latest error occurred, or "-" when no error has occurred.
The error remains displayed even after the communication status has changed to the state in which the
communication can be performed normally. When another error occurs, it will be overwritten with a new one.
Err Det... Displays the descriptions and corrective actions for the error occurring in the selected setting number.
[Clear Latest Error Code] button Clears the error code.
This operation also clears the error codes (Un\G1194 to Un\G1257) of the corresponding setting number in the CPU
buffer memory.
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