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7-2
Section
Analog Output Units
122
3. With an Analog Output Unit, output for communications errors is enabled
using the switch on the Analog Output Unit. It does not depend on the
Communication Unit “hold/clear communications error” setting.
Output Range Settings
As shown in the following table, the DIP switch output range settings are for two
outputs each.
Pin 1
Pin 2
Pin 3
Output range settings for outputs 0 and 1
Pin 4
Pin 5
Pin 6
Output range settings for outputs 2 and 3
OFF
OFF
OFF
0 to 5 V (factory-set)
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
Other than the above
Cannot be set
Clear at Minimum and Clear at Maximum Outputs
When clear at minimum or clear at maximum is set using DIP switch pins 8 and 9,
a communications error will be output according to the output range, as shown in
the following table.
Output signal
range
Clear at minimum
Clear at
maximum
Clear at 0 V
0 to 5 V
--0.25 V
5.25 V
--0.25 V
1 to 5 V
0.8 V
5.2 V
0.8 V
0 to 10 V
--0.5 V
10.5 V
--0.5 V
--10 to 10 V
--11 V
11 V
0 V
4 to 20 mA
3.2 mA
20.8 mA
3.2 mA
Internal Circuits
I/O Unit
interface
Internal
power
supply
Insulating
DC to DC
converter
Output circuit
4 circuits
I/O Unit
interface
I/O Unit
interface
Photocoupler
Internal
circuits
Photocoupler
24 VDC
+
24 VDC
--
V+
--