Omron sysmac NX102-9 Series Owner's Manual page 318

8 CIP Message Communications
5
If the total number of readout records does not satisfy the Number of registered record, it means
that there are records which have not been read. Specify the following parameters and execute
Get current error again.
• Start number of read record: Start number of read record when the previous service was exe-
cuted + Number of readout record of response.
• Number of read record: Number of read records
Repeat steps (3) to (5) until the total number of readout records match the Number of registered record.
Get Event Log (Service Code: 3B hex)
Obtain the event log of the Controller or specified NX Unit.
When the Controller is specified, the event log saved in the Controller is obtained. Event logs of slaves
connected to the Controller such as EtherCAT slaves cannot be obtained.
 Request Data Format
Parameter name
Service
Request Path Size
Request Path
Unit No
Event log type
Start index of read record
Number of read record
8-62
Data type
USINT Get event log service: 3B hex
USINT Size of Request Path: 02 hex
Padded EPATH Request path: 2074 2401 hex
Class ID: 74 hex
Instance ID: 01 hex
UINT Unit number
0000 hex: Controller
0001 to 0020 hex: NX Unit
0021 hex or above: Not supported
UINT Event log type
0000 hex: System event log
0001 hex: Access event log
0002 hex: User event log
UDINT Top index number of read record
If the record of the number indicated by the Start
index of read record does not exist in the Unit, the
record will be read from the oldest index. When
the unit exceeds the maximum number of event
log records which can be registered, it occurs
when old records are overwritten by new records.
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.
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User's Manual (W506)
Description