Parameter name Data type Description
Unit No UINT Unit number
0000 hex: Controller
0001 to 0020 hex: NX Unit
0021 hex or above: Not supported
Event log type UINT Event log type
0000 hex: System event log
0001 hex: Access event log
0002 hex: User event log
Start index of read record UDINT Top index number of read record
If the record specified by the Start index of read re-
cord is not found in the Unit, the record will be read
from the oldest index. If the maximum number of
event log records which can be registered for the
Unit is exceeded, this will occur since old records
are overwritten by new records.
Number of read record UINT Number of read records
Controller (0 to 5)
NX Units (0 to 9)
When the registered number of records is smaller
than the number of read records, an error does not
occur
, and all the registered event logs are read.
Response Data Format
When the processing is successful
Parameter name Data type Description
Reply Service USINT Get event log service response: BB hex
Reserved USINT Reserved: 00 hex
General Status USINT Code indicating normal: 00 hex
Size of Additional Status USINT Size of Additional Status: 00 hex
Record size UINT Size of one record (Byte)
Controller event log: 0060 hex
NX Unit event log: 0032 hex
Number of registered record UINT Number of registered records
Latest index of registered record UDINT Index number of the latest registered record
Last index of readout record UDINT Index number of last readout record
Number of readout record UINT Number of readout records
Reserved UINT Reserved
8 CIP Message Communications
8-63
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
8-5 CIP Object Services
8
8-5-3 NX Configuration Object (Class ID: 74 hex)
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