Mitsubishi Electric RD78G4 User Manual page 87

Event Overview
code
00C41 Slave station parameter automatic setting: Parameter
update interruption
00C42 Slave station parameter automatic setting: System
error
00C43 Slave station parameter automatic setting:
Transmission timeout
00C44 Slave station parameter automatic setting: Receive
timeout
00C46 Slave station parameter automatic setting: SLMP
transmission error
00C47 Slave station parameter automatic setting: CPU
module access failure
00C48 Slave station parameter automatic setting: No target
station parameter
00C50 Time synchronization loss
00C51 Time synchronization error
00C52 Grandmaster switching (CC-Link IE TSN device)
00C53 Grandmaster switching (general-purpose device)
00C54 Initialization sequence failed
00C55 Message disposal
00C56 Response timeout
00C57 Message disposal
00C58 SLMP response frame disposal
00C59 Specified port No. error
00C5A Specification IP address error
00C5B Connection establishment failed
00C5C TCP connection timeout
00C5D Send processing execution disabled
00C5E UDP/IP send failed
00C5F TCP/IP send failed
00C60 IP address of the external device acquisition error
Cause
An abnormal response was received from the slave station, and parameter update
processing of slave station parameter automatic setting was interrupted.
For details on slave station response codes, refer to the manual for the slave station
used.
An error occurred while the slave station parameter automatic setting was executing.
Transmission timed out while communicating with the slave station parameter automatic
setting.
The specified period of time expired without receiving while communicating with the
slave station parameter automatic setting.
An error occurred while transmitting SLMP for the slave station parameter automatic
setting.
Access to the CPU module failed during slave station parameter automatic setting.
The slave station parameter file targeted during slave station parameter automatic
setting was not stored in the CPU module.
The time difference between the time notified from the grandmaster and the time of the
own station exceeded the allowable value.
The time synchronization loss occurred more than a fixed number.
The device acting as the grandmaster station was disconnected, and then the CC-Link
IE TSN device was newly selected as the grandmaster.
The device acting as the grandmaster was disconnected, and then the general-purpose
device was newly selected as the grandmaster.
A communication error occurred in the initialization processing when control
communications started.
The request was discarded because there were too many requests to be processed.
There was no response from the external device and timeout occurred.
After response timeout, the response data from the external device was received.
The SLMP response frame was disposed of due to any of the following causes.
• The request source of the received SLMP response frame is not clear.
• The received SLMP response frame has already returned an error response
according to the monitoring timeout.
• The SLMP communication load is high so that the received SLMP response frame
cannot be transferred.
There was a request for a port No. not open from the external device.
Sending was performed the a device while the "IP Address" setting of the slave station
set in "Network Configuration Settings" under "Basic Settings" of the master station was
incorrect.
A connection could not be established in the open processing.
The external device does not send an ACK response in the TCP/IP communications.
• The receive buffer or send buffer is not sufficient.
• The window size of the external device is not sufficient.
Data was not sent correctly with UDP/IP due to either of the following causes.
• An error occurs in the external device.
• Failures of switching hubs and cables occur.
• Congestion of packets on the line
Data was not sent correctly with TCP/IP due to either of following causes.
• An error occurs in the external device.
• Failures of switching hubs and cables occur.
• Congestion of packets on the line
Target IP address could not be acquired from the network No. and station No..
3 TROUBLESHOOTING
3.7 Event List
3
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