Operating instructions Register sensors RS25
Description of the operating modes and parameters
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© SICK AG • Presence Detection • Subject to change without notice • 8015887
9.5
Search/Teach-in key code mode
The following table describes the "Search/Teach-in key code mode":
Description
Function
In this mode the sensor looks for key codes and detects
the first edge of the key code. You need to first perform a
teach-in for the background for this mode.
Activation
This mode must be activated via Ethernet Powerlink in the
"Operation mode" field. The parameter "T
0
-Trigger“ includes
the time stamp reference for the sensor NetTime that
is used. Measuring is started with "T
0
-Trigger". Once the
teach-in process is complete, or a fault has occurred, the
mode will be deactivated automatically.
Prerequisite
The following values and parameters must be set before
starting:
• The key code geometry in μs
• T
0
-Trigger time stamp
• Key code = yes
Key code use is activated.
Feedback
The sensor sends the following data to the PLC via the
cyclical data traffic:
• The precise time stamp (t1) of the first key code edge
regarding the trigger time T
0
• Trigger time T
0
first configured via the PLC
The sensor sends the following data to the PLC via the
acyclical data traffic:
• Best detected sending color for the key code
• Light remission value for the selected sending color for
the key code
Speed
Up to 10 m/s
Table 11: Search/Teach-in key code mode
t1
Trigger
Stop
0
Start = T
Fig. 23: Explanation of Search/Teach-in key code mode
