Mitsubishi GT16 User Manual page 186

Error
Error message
code
Same sta. on GOT & project
424 data. Review communication
parameter.
A duplicate IP address has been
425
detected. Confirm the setting.
PLC cannot handle as
448
requested. Correct devices.
Dedicated device is out of
449
range. Confirm device range.
Path has changed or timeout
450
occurred in redundant system.
Q redundant system settings
451 and current config. do not
match.
460 Communication unit error
Communication channel not set.
480
Set channel number on Utility.
Communication unit not
481 mounted to the slot of active
channel.
Too many same units are
482 mounted. Confirm the no of
units.
10 - 22 10.3 Error Message and System Alarm
The station number set in the GOT's utility is the same as the station
number set in the Ethernet setting of GT Designer3 or GT Designer2 (the
station number of the PLC side Ethernet module) or in the project data.
Check the following contents so that the multiple station numbers should
not be the same.
• Check the GOT's station number in the GOT's utility.
• Check the station number set in the project data.
• Check the station number set in the Ethernet setting.
(Set the station number so that it becomes the same as the station
number of the PLC side Ethernet module set in the parameter setting
of GX Developer.)
• When using the station No. switching function, check the data of the
switching station No. device.
A duplication of IP address with another device has been detected.
Change the IP address of GOT or the other device.
A device outside the range of PLC CPU file registers and the buffer
memory was specified.
Correct the monitor device by setting file register of the PLC CPU.
• Set the address for the special function module in the GOT monitor
available range.
• Set the device in the GOT monitor available range.
The path has been switched or timeout occurred in the redundant system.
• Check the PLC CPU to know if the path has been switched.
• Check the cable connection status, the communication unit installation
status, and the PLC CPU status.
• This error may occur when the load of the PLC CPU becomes heavier
when accessing other stations. In such a case, transfer the data of the
other stations to the host station PLC CPU and monitor them at the
host.
• Perform one of the following operations if the PLC scanning time is
long: COM instruction/Extension of END processing/Setting of the
number of processing times for general data/Data update batch
processing.
Change the Q redundant setting in accordance with the actual Q
redundant CPU system.
• Reset the power of the GOT.
• Replace the unit.
Channel (CH.No.1 to 4) to communicate with a controller is not set.
• After setting the Communication Settings on the GT Designer3 or GT
Designer2, download it to the GOT.
• Change the channel assignment in the Communication Setting on the
utility.
The interface where the channel (CH No.1 to 4) is set does not have a
communication unit installed.
• Install a communication unit to the interface where the channel (CH
No.1 to 4) is set.
• Change assignment of the channel (CH No.1 to 4) in the
Communication Setting.
Units are mounted on the GOT exceeding the maximum number of
mountable units.
Check the number of units, and remove unnecessary units.
Action
Channel No.
storage
*1
*1
*1