6 DeviceNet Communications
6.9.2 Reading Trace Data
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Pre-trigger (Object: 0x67; Instance: 0x01; Attribute: #18)
Set how much of the 1,000 points of pre-trigger data is to be stored before detecting the trig-
ger.
The setting unit is the amount of data, and the setting range is 0 to 999. If the Trigger Target
is set to no trigger, the pre-trigger setting is disabled.
Start Trace (Object: 0x67; Instance: 0x01; Attribute: #19)
Set “start trace” or “stop trace.” To execute tracing continuously, reset “start trace.”
Trace Status (Object: 0x67; Instance: 0x01; Attribute: #20)
Contains the data trace status.
6.9.2 Reading Trace Data
Data Trace Object
Data traced by the Servo Driver is stored in Data Trace Object. There are four general data
trace objects, as shown in the following table.
Trace Data 1 and 2
Trace data is stored as shown in the following diagram.
Set Value
Contents
0000 Hex
No-operation (NOP)
0001 Hex
Start trace
0002 Hex
Stop trace
Set Value
Contents
0000 Hex
Initial status
0001 Hex
Tracing data.
0002 Hex
Trace completed.
0010 Hex
Tracing interrupted.
0011 Hex
Setting error
Data Type
Data Range
Stored Objects
Trace data 1
1 to 1,000
Object 0x68, instance #1
Trace data 2
1 to 1,000
Object 0x68, instance #2
I/O trace 1
1 to 63
Object 0x68, instance #3
I/O trace 2
1 to 63
Object 0x68, instance #4
Object 0x68
Instance #1 or #2
Address #1
Address #100
Oldest data
Newest data
Time flow
Summary of Contents for OMNUC W R88A-NCW152-DRT
Page 1: ...Cat No I538 E3 1 DeviceNet Option Unit OMNUC W Series Model R88A NCW152 DRT...
Page 53: ...4 Connectors 4 5 3 DeviceNet Network Configuration Restrictions 4 22 4...
Page 97: ...5 Parameter Settings 5 3 8 Notch Signal Output Positioning 5 44 5...
Page 211: ...8 Servo Driver Settings 8 5 3 Absolute Encoder Multi turn Limit Setting 8 24 8...
Page 257: ...9 Troubleshooting 9 46 9...