Photoelectric Sensors
True-Color-Sensor BFS 33M with IO-Link
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The Precise-Mode provides two options
Option B1 is a convenient, automated process for teach-in directly onto the
product to be queried.
Option B2 involves entering the numeric values manually.
A1: Teach-In procedure (automatic with object in Best-Fit mode)
1. Position product in front of sensor.
2. Observe wait time (see Table W).
3. Select Index 0x0400 Subindex 0x1: Product number (1…255).
(The product is then automatically activated; the tolerance is automatically set in
this mode.)
4. Repeat procedure if needed for different products. A new product number (1...255)
must be assigned each time.
5. Remove product (sensor detects the background).
6. Observe wait time (see Table W).
7. Enter Index 0x0400 Subindex 0x1: Product number for background (65535) (The
background is automatically taught and activated.)
Only now is the sensor fully ready!
The wait time after positioning the sensor ensures that it has established a stable
working state before the actual measurements from the sensor are accepted. The wait
time depends directly on the set value for averaging, i.e. a higher value requires a
longer wait time.
Averaging
Wait time
1
20 ms
2
40 ms
4
80 ms
16
300 ms
64
1.3 s
256
5.1 s
1024
20.5 s
Table W: Wait time after positioning the sensor.
A2: Manual specification of the target values for products (without object)
in Best-Fit mode
1. Select Index 0x0404: Select product number (1...255).
2. Index 0x0405 Subindex 0x2 to 0x4: Enter CIELab target values for the product.
(The tolerance is automatically determined in this mode.)
3. Activate Index 0x0405 Subindex 0x1: Release product (1…255).
4. Repeat procedure if needed for different products. A new product number (1...255)
must be assigned each time.
5. Index 0x0403 Subindex 0x2 to 0x4: Enter CIELab target values for the background.
6. Index 0x0403 Subindex 0x1: Enable background approval.
(The tolerances are automatically determined in this mode.)
