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
9.8
RUN mode with key code
The following table describes the "RUN mode with key code":
Description
Function
In this mode, the sensor measures the exact timing of all
edges of the print marks and sends the exact time stamps
of all detected print marks to the PLC. In this mode, the
sensor uses the values and configured colors that were
taught in during the teach-in process.
If a key code is used, "T
0
-Trigger" parameter is not required.
The sensor detects the key code and automatically sets
"T
0
-Trigger" parameter at the beginning of the detected key
code as a time stamp of the Ethernet Powerlink NetTime.
All timings are based on this "T
0
-Trigger" time stamp.
→
See the figure below.
Activation
You can activate this mode via Ethernet Powerlink in the
"Operation mode" field. "T
0
-Trigger" from the PLC is ignored
in this mode. This mode must be deactivated again via the
"Operation mode" field.
Prerequisite
The following values must be set before starting:
• Limit values of sending colors and light remission values
of the taught in print marks
• Light remission value for the background
• Key code
The following parameters must be set before starting:
• Δax: The time between the first key code edge and the
start of the first reading window for print marks
• Δbx: Reading window width for print marks
• Key code = yes
Key code use is activated.
Feedback
The following data is sent from the sensor to the PLC.
• Mode changes or faults
• The exact timing of the rising and falling edges of the
print marks as a reference for the "T
0
-Trigger" value
• The detected "T
0
-Trigger" value
• Light remission values for each print mark in every
reading window
Speed
Speeds of up to 10 m/s are possible in this mode.
Table 14: RUN mode with key code
