765-4501/0100-0000
Diagnostics
122
Product manual | Version: 1.1.0
8PORT IOL-A FLD EI DC 24V 2.0A
At-
tribute
Name
n/a
Access Data Type Description
Default
20
Log Contains
Entries
V
Get
BOOL
Does the log contain entries?
False: log is empty
True: log contains events
False
21
Log Overrun
V
Get
BOOL
Log overrun?
False: no log overrun
True: log overrun
False
22
Sequential
Event/Data
Access
V
Get
STRUCT
Simple read access to event entries
If there are one or more entries in the
event log, Get_Attribute_Single reads the
first entry, which is then removed from the
event log.
If there are no entries in the event log,
Get_Attribute_Single supplies no data.
–
24
Event Identi-
fier Format
n/a
Get, Set USINT
Format of a log entry
0–3: reserved
4: 24 bits in the format USINT + UINT
5–255: reserved
4
• Attribute 14: structure of an entry:
The value of attribute 9 determines the structure of an entry.
Table 91: Structure of a log entry
Structure of an Entry
Description
USINT
IO-Link event qualifier, always present.
UINT
IO-Link event code, always present.
STIME
System time
The system time is only present if attribute 9 bit 0 = 1.
• Services:
Table 92: Event log object 65 (0x41) services
Service Code Service Name
Class Level
Instance
Level
Description
0x05
Reset
–
Yes
Reset
0x0E
Get Attribute Single
Yes
Yes
Read one attribute
0x10
Set Attribute Single
–
Yes
Write one attribute
0x18
Get Member
–
Yes
Read entry
0x1B
Remove Member
–
Yes
Delete entry
11.3 Diagnostics via IO-Link
An IO-Link event contains an “Event Qualifier” and an “Event Code“. The “Event Qualifier”
indicates whether the IO-Link event came from the master or the device.
Event Qualifier
The event qualifier provides bit-coded information on the event.
