High measurement accuracy
On the MLG-2, the measurement accuracy can be increased in SOPAS ET. This means
that an object can be detected even if it only covers half of a beam (see "Minimum
detectable object with high measurement accuracy from the MLG-2", page 23). When
the configured measurement accuracy is high, the MLG-2 cleaning and teach-in proc‐
esses must be performed more frequently.
High operating reserve
Setting the operating reserve high makes the MLG-2 very resistant to contamination
(see "Operating reserve", page 24). However, it is not possible to activate high measure‐
ment accuracy in this case.
Cross beam function
When the cross-beam function is enabled, the light beam from a sender LED is received
by three receiver diodes in two scans. This doubles the scan time.(see "Minimum
detectable object with cross-beam function ", page 22).
High-speed scan
With high-speed scan, several beams are active in each cycle. This reduces the scan
time by a variable factor (see "Scan time with high-speed scan on the MLG-2", page 19).
7.4.2.3 Minimum detectable absorption
Table 86: Minimum detectable absorption
Index Access Data type Description
62h R/W ENUM8 This parameter is used to specify the mini‐
mum detectable absorption for the Transpar‐
ent operating mode (see "Transparent operat‐
ing mode", page 24).
0 = signal attenuation 30%
1 = signal attenuation 15%
2 = signal attenuation 10%
7.4.2.4 Configuration Q1
Table 87: Configuration Q1
Index Access Data type Description
63h R/W STRUCT
Operand 1 = ENUM8
Operator = ENUM8
Operand 2 = UINT-16
These parameters are used to define function
programming for switching output Q1.
Table 88: Byte sequence of 63h
Byte 0 Byte 1 Byte 2 Byte 3
Operand 1 Operator Operand 2
ENUM8 ENUM8 UINT-16
You can use operands and operators to realize functions for the switching output.
Example:
Operand 1 = 2; equates to the number of beams made (NBM)
Operator = 1; equates to ≥
Operand 2 = 30
THE MLG-2 ON THE PROFIBUS NETWORK 7
8018748.1Q3I/2024-12-18 | SICK O P E R A T I N G I N S T R U C T I O N S | MLG-2 ProNet
83
Subject to change without notice
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