4 Trace
15-04-2016 35 7000.05052
4.2
Trace logger
The log service allows individual trace data packets to be requested by request. In this
way a continuous recording can be built up over a long period of time. For configuration
of the data sources to be transmitted, the same objects are used, source 1 to source 4 of
the trace recorders.
The trace request command allows a current data packet with up to 4 data sources can be
read in accordance with the set configuration.
Tab. 39: Request
Byte
Contents
Description
1
4
User data length 4 bytes
2
Node number
Node number
3
0x06
Command Trace Log
4
CRC
Check sum
Tab. 40: Response
Byte
Contents
Description
1
Length
User data length >5 bytes
2
Node number
Node number
3
0x06
Command Trace Log
4
Value source 1 LB
Values of the requested data sources, length in accordance with
OD
5–N
...
The user data length of the individual data sources is dependent
on the number and data length of the values to be transmitted
(according to the OD entry).
(N+1)
Time code
Distance from the previous request
(N+2)
CRC
Check sum
The resolution of the individual data points is dependent on the speed of transmission
and processing. The resolution of the data points can be down to 1 ms.