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Analog I/O (XA CPU Units) Section 5-5
5-5 Analog I/O (XA CPU Units)
The XA CPU Units of the CP1H CPU Units are equipped with 4 built-in analog
inputs and 2 built-in analog outputs.
I/O Specifications
Analog Input
Specifications
Analog Output
Specifications
Built-in analog
inputs (A/D)
Analog Voltage/Current
In
ut Switch
Built-in analog
outputs (D/A)
Item Voltage input Current input
Number of inputs 4 inputs (Allocated 4 words: CIO 200 to CIO 203.)
Switchable voltage/current
input
The 4 inputs can be set independently with the Ana-
log Voltage/Current Input Switches.
Input signal range 0 to 5 V, 1 to 5 V, 0 to 10
V, o r −10 to 10 V
(Set in PLC Setup.)
0 to 20 mA or 4 to 20 mA
(Set in PLC Setup.)
Max. rated input ±15 V ±30 mA
External input impedance 1 MΩ min. Approx. 250 Ω
Resolution 1/6000 or 1/12000 (Select in PLC Setup.)
Overall accu-
racy
At 25°C ±0.3% full scale ±0.4% full scale
0 to 55°C ±0.6% full scale ±0.8% full scale
A/D conver-
sion data
−10 to 10 V Resolution of 1/6000: F448 to 0BB8 hex FS
Resolution of 1/12000: E890 to 1770 hex FS
Other ranges Resolution of 1/6000: 0000 to 1770 hex FS
Resolution of 1/12000: 0000 to 2EE0 hex FS
Averaging function Supported (Set for individual inputs in the PLC
Setup.)
Open-circuit detection function Supported (Value when disconnected: 8000 hex)
Item Voltage output Current output
Number of outputs 2 outputs (Allocated 2 words: CIO 210 to CIO 211.)
Output signal range 0 to 5 V, 1 to 5 V, 0 to 10
V, or -10 to 10 V
0 to 20 mA or 4 to 20 mA
Max. rated input ±15 V ±30 mA
Allowable external output load
resistance
1 kΩ min. 600 Ω max.
External input impedance 0.5 Ω max. ---
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