289
Specifications Section 7-1
3. Input and output signal ranges can be set for each input and output.
4. Voltage input or current input are chosen by using the voltage/current
switch at the back of the terminal block.
5. The Analog I/O Unit must be operated according to the input specifications
provided here. Operating the Unit outside these specifications will cause
the Unit to malfunction.
6. The accuracy is given for full scale. For example, an accuracy of
±0.2%
means a maximum error of
±8 (BCD).
7. A/D conversion time is the time it takes for an analog signal to be stored in
memory as converted data after it has been input. It takes at least one cy-
cle before the converted data is read by the CPU Unit.
8. By means of the D(m+18) setting, the resolution can be changed to 8,000,
and the conversion time can be changed to 500
µs.
Output Specifications
Scaling Enabled only for conversion time of 1 ms and resolution of 4,000. Setting any values
within a range of ±32,000 as the upper and lower limits allows the A/D conversion result to
be output with these values as full scale.
Input disconnection detection Detects the disconnection and turns ON the Disconnection Detection Flag.
Item Voltage input Current input
Item Voltage output Current output
Number of analog outputs 2
Output signal range (See note
1.)
1 to 5 V
0 to 5 V
0 to 10 V
–10 to 10 V
4 to 20 mA
External output impedance 0.5 Ω max. ---
Maximum external output cur-
rent (for 1 point)
2.4 mA ---
Maximum allowed load resis-
tance
--- 600 Ω
Resolution 4,000/8,000 (full scale) (See note 5.)
Set data 16-bit binary data
Accuracy
(See note 2.)
25°C ±0.3% of full scale ±0.3% of full scale
0°C to 55°C ±0.5% of full scale ±0.6% of full scale
D/A conversion time (See
note 3.)
1.0 ms/500 µs max. per point
Output hold function Outputs the specified output status (CLR, HOLD, or MAX) under any of the following cir-
cumstances.
When the Conversion Enable Bit is OFF. (See note 4.)
In adjustment mode, when a value other than the output number is output during adjust-
ment.
When there is an output setting error or a fatal error occurs at the PLC.
When the CPU Unit is on standby.
When the Load is OFF.
To Next Page
Loading...
Need help?
General
