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SENSOR PROGRAMMING
3.2.2.4. One-Point Background Suppression (bGS) (Channel 2 Only)
One-point background suppression sets a single switch point in front of the taught target distance. Objects beyond the taught switch point are
ignored. The switch point is set in front of the taught target distance by the vertical minimum object separation. See Typical Performance Curves
on page 32.
Figure 8: One-Point Background Suppression
The sensor must be set to tch = bGS to use the following instructions. The BGS indicator is amber to indicate Background Suppression mode. To
program the sensor using remote input, remote input must be enabled (out2 = SEt).
1) Present the target.
2) Start the TEACH mode.
3) Teach the sensor.
Method Action Result
Push Button
Present the target. The sensor-to-target distance must be within the sensor's range. The target's measurement value displays.
Remote Input
Method Action Result
Push Button Press and hold TEACH for longer than 2 seconds.
Light Operate
SEt and oFF flash alternately on the display.
The 1-Pt 2-Pt and indicators flash.
Dark Operate
SEt and on flash alternately on the display.
The1-Pt and 2-Pt indicators flash.
Remote Input No action required. N/A
Method Action Result
Push Button Press TEACH to teach the target.
The new switch point flashes rapidly and the
sensor returns to Run mode.
Remote Input Single-pulse the remote input.
Table 4:Expected TEACH Behavior for One-Point Background Suppression
Condition TEACH Result Display
One valid TEACH point
If an Offset is applied, the TEACH point is
still valid
Sets a switch point in front of the taught distance equal to
the non-uniform reflectivity minimum object separation.
The switch point distance flashes on the
display.
One invalid TEACH point Sets a switch point at 120 cm.
bGS and the switch point distance flash
alternately on the display.
One valid TEACH point that, after offset,
becomes invalid
Sets a switch point at 120 cm.
oFSt and the switch point distance flash
alternately on the display.
Switch
Point
Value A
1
2
Press and
Hold > 2s
Press
again
3
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