108
Analog Input Units Section 5-1
Note When setting the input range using a DeviceNet Configurator, use version
1.11 or later. (If pin 16 is ON, and a setting is made using the Configurator, the
input ranges will all be 0 to 5 V.)
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.
Note If input range setting is performed using the Configurator (version 1.11 or
later), it is possible to make the setting for each point.
Internal Circuits
Terminal/Connector Pin Arrangement
The arrangements of the terminals, the connectors and the connector pins are
shown in the following diagram.
Wiring Attach MOLEX connectors to the analog input connectors, and connect the
inputs as shown in the following diagram, depending on whether voltage
inputs or current inputs are being used.
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
I/O Unit
interface
Internal
power
supply
Insulating DC
to DC
converter
Input circuit
8 circuits
I/O Unit
interface
I/O Unit
interface
Photocoupler
Internal
circuits
Photocoupler
24 VDC
+
24 VDC
−
510 kΩ
250 Ω
510 kΩ
V+
−
I+
Input
−