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106
Application Procedure
Section 6-4
Here, analog inputs 1 and 2 use current inputs (4 to 20 mA), so pins 1 and 2
are turned ON (bottom).
Note When a voltage input is used, always turn OFF the corresponding pin of DIP
switch 1, even if the range code is set to a value other than 010 or 011.
Average Processing Switch (DIP Switch 2)
When minute fluctuations occur in an analog input signal, average processing
can be used to stabilize the input. With average processing, the average of
the previous eight data values is used as the conversion data.
Here, average processing is used by analog input 3, so pin 3 is turned ON
(bottom).
6-4-3
Analog I/O Wiring
Use the connectors provided with the Analog I/O Boards when wiring analog
I/O.
CPM2B-MAD21, CPM2B-MAD42, and CPM2B-MAD63 Analog I/O Boards
1
ON
2
3
4
5
6
Current
Voltage
OFF (top): Voltage input used.
ON (bottom): Current input used.
Analog I/O Unit
DIP switch 2 pin
1
2
3
4
5
6
CPM2B-MAD63
Input 1
Input 2
Input 3
Input 4
Input 5
Input 6
CPM2B-MAD42
Input 1
Input 2
Input 3
Input 4
Not available.
CPM2B-MAD21
Input 1
Input 2
Not available.
1
ON
2
3
4
5
6
AVG
ON
OFF (top):
Average processing not used.
ON (bottom): Average processing used.
DIP switch 2
(average processing switch)
Expansion I/O Connector
DIP switch 1
(voltage/current switch)
Analog Input
Connector
Analog Output
Connector
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