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7-1
Section
Analog Input Units
114
The following diagram shows the functions of the DIP switch.
Input range
Operation specifications
•
Averaging
•
Switching between 4 and 8 inputs.
•
Software setting enable/disable
ON
The following table summarizes the DIP switch settings. (All pins are factory-set
to OFF.)
Pin(s)
Function
Settings
Meaning
1 to 12
Input range
“Input Range Settings” (see below)
13
Averaging (see
page 118)
OFF
No averaging is performed.
(factory-set)
page
8)
ON
Averaging is performed.
14
8-point/4inputs
i hi
(
OFF
8 inputs (factory-set)
p
/
p
switching (see
page 117)
ON
4 inputs (inputs 0, 2, 4, and 6 are
enabled)
15
Reserved for
system use
OFF
Must be set to OFF. (factory-set)
16
Software setting
enable/disable
OFF
Set the input range with pins 1 to
12. (factory-set)
e ab e/d sab e
ON
Input range setting by software (see
note) is enabled.
Note
The feature of setting the Input range by software can not be used with
PRT1-COM.
Make sure the I/O Unit power supply (including the I/O Unit interface power
supply) is OFF when setting the DIP switch.
Input Range Settings
As shown in the following table, the DIP switch input range settings are for two
inputs each.
Pin 1
Pin 2
Pin 3
Input range for inputs 0 and 1
Pin 4
Pin 5
Pin 6
Input range for inputs 2 and 3
Pin 7
Pin 8
Pin 9
Input range for inputs 4 and 5
Pin 10
Pin 11
Pin 12
Input range for inputs 6 and 7
OFF
OFF
OFF
0 to 5 V
ON
OFF
OFF
1 to 5 V
OFF
ON
OFF
0 to 10 V
ON
ON
OFF
--10 to 10 V
OFF
OFF
ON
4 to 20 mA
ON
OFF
ON
0 to 20 mA
Other than the above
Cannot be set
DIP Switch Settings