Functional description—basic model – Rockwell Automation 45MLA Controller Installation Instructions User Manual
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• Turning off power at any time during the teach process cancels
the process. The previously stored values remain valid.
• The analog output is active during the teach process and the
output value represents the actual state based on the current
interrupted beams and the values taught during the current
teach process.
• Default values (analog output scaled to full length of
connected light arrays) can be reset by setting DIP switch 1:8 to
ON and cycling power.
• Connecting a different length light array pair to the controller
will result in the analog output being scaled to the full length
of the array, thus overwriting any taught values for minimum
and maximum analog output value.
• The slope of the analog output can be made positive or
negative by changing the order in which the two different
sized objects are presented during the teach process. For
example, presenting the taller object in step 2 and the shorter
object in step 3 will result in a negative slope in the analog
output.
Functional Description—Basic Model
Figure 4: Basic Model
This controller model provides a basic discrete (on/off ) output
indicating the overall state of the arrays.
Pin Listings
The allocation of pins on the main connector, J2, is specified in
Table 10.
In 2
PNP
NPN
PNP
NPN
D7 LED - Power
D3 LED Out 1
D4 LED Out 2
D6 LED In 2
D5 LED In 1
RJ45 Connector
Emitter
RJ45 Connector
Receiver
D2 LED
D1 LED
In 1
Pot 2
Pot 1
Removable
Spring-Loaded
Connector
Input
Logic
Jumpers
S1
J2
Out 1
Out 2
In 1
In 2
n. c.
Earth.
24 VDC
0 VDC
Table 10: J2 Pin Listings
DIP Switch Settings
DIP switches 1 through 6 on the S1 DIP switch array are
configured for the various applications described below. If no
information is otherwise provided these DIP switches should
remain in the OFF position.
DIP switch 8 is used to reset default configuration. Note that once
changed, DIP switch settings are only recognized after a power
cycle.
The following table details DIP switch settings for the I/O board.
Please refer to the user manual for further information on the
listed functions.
Table 11: Basic Model DIP Switch Settings
Pin
Signal
Description
Remarks
1
0V DC
Power
—
2
+24V DC
Power
—
3
Ground
Ground
—
4
Not connected
Not connected
—
5
In 2
Not used
6
In 1
Not used
DIP switch S1 (3) = 0
Remote teach
DIP switch S1 (3) = 1
7
Out 2
Error
0V DC = Error
8
Out 1
Light array interrupted
0V DC = interrupted
24V DC = not interrupted
Function
DIP Switch S1
(0: OFF, 1: ON, X: not relevant)
8
7
6
5
4
3
2
1
Default setting
0
0
0
0
0
0
0
0
Maximum emitter power (100%)
0
x
x
x
x
x
0
0
Reduce emitter power (75% of max.)
0
x
x
x
x
x
0
1
Reduce emitter power (60% of max.)
0
x
x
x
x
x
1
0
Reduce emitter power (15% of max.)
0
x
x
x
x
x
1
1
Enable remote teach
0
x
x
x
x
1
x
x
Enable double scan filter
0
x
x
x
1
x
x
x
Output logic
Light Operate = 24V (PNP L.O.)
Dark Operate = 0V (NPN D.O.)
0
x
x
0
x
x
x
x
Output logic
Light Operate = 0V (NPN L.O.)
Dark Operate = 24V (PNP D.O.)
0
x
x
1
x
x
x
x
Standard beam counting direction
0
x
0
x
x
x
x
x
Reverse beam counting direction
0
x
1
x
x
x
x
x
Normal operation
0
x
x
x
x
x
x
x
Set default
1
x
x
x
x
x
x
x