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7-1
Section
Analog Input Units
106
The DIP switch is on the left side of the Cassette of the Analog Input Unit
(GT1-AD04). Detach the Cassette from the Unit in order to make DIP switch
settings. The following diagram shows the functions of the DIP switch.
Input range Operation specifications
•
Averaging
•
Software setting enable/disable
The following table summarizes the DIP switch settings. (All pins are factory-set
to OFF.)
Pin(s)
Function
Settings
Meaning
1 to 6
Input range
“Input Range Settings” (see below)
7
Averaging (see
page 110)
OFF
No averaging is performed.
(factory-set)
page
0)
ON
Averaging is performed.
8, 9
Reserved for
system use
OFF
Must be set to OFF. (factory-set)
10
Software setting
enable/disable
OFF
Set the input range with pins 1 to 6.
(factory-set)
e ab e/d sab e
ON
Input range setting by software is
enabled.
(see note 1)
Note
1. The feature of setting the Input range by software can not be used with
PRT1-COM.
2. Before detaching or attaching the Cassette or making DIP switch settings,
ensure that the power supply to the I/O Unit (including power supply to I/O
Unit interface) is OFF.
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
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