Datasheet
6
CJ1W-AD/DA/MAD
*5 The D/A conversion period is the time required for the Analog Output Unit to convert and output the data that was received from the CPU Unit.
It takes at least one cycle for the data stored in the CPU Unit to be read by the Analog Output Unit. (The direct conversion function of the CJ1W-
DA042V can be used to output data immediately from the CPU Unit.)
*6 When the operation mode for the CPU Unit is changed from RUN mode or MONITOR mode to PROGRAM mode, or when the power is turned
ON, the Output Conversion Enable Bit will turn OFF. The output status specified according to the output hold function will be output.
*7 The CJ1W-DA042V does not have an Adjustment Mode.
*8 The CJ1W-DA08V/08C can be set to a conversion cycle of 250 μs and a resolution of 8,000 using the setting.
Analog I/O Unit CJ1W-MAD42
Specifications
Input Specifications and Functions
Item CJ1W-MAD42
Unit type CJ-series Special I/O Unit
Isolation
Between I/O and Controller signals: Photocoupler
(No isolation between I/O signals.)
External terminals 18-point detachable terminal block (M3 screws)
Current consumption 580 mA max. at 5 V DC
Dimensions (mm) 31 × 90 × 65 mm (W × H × D)
Weight 150 g max.
General specifications Conforms to general specifications for CJ-series Series.
Item Voltage input Current input
Number of analog inputs 4
Input signal range *1
1 to 5 V
0 to 5 V
0 to 10 V
−10 to 10 V
4 to 20 mA *2
Maximum rated input (for 1
point) *3
±15 V ±30 mA
Input impedance 1 MΩ min. 250 Ω (rated value)
Resolution 4,000/8,000 *7
Converted output data 16-bit binary data
Accuracy *4
25°C ±0.2% of F.S.
0°C to 55°C ±0.4% of F.S.
A/D conversion period *5 1.0 ms/500 μs per point *7
Mean value processing
Stores the last "n" data conversions in the buffer, and stores the mean value of the conversion values.
Buffer number: n = 2, 4, 8, 16, 32, 64
Peak value holding Stores the maximum conversion value while the Peak Value Hold Bit is ON.
Scaling
Enabled only for conversion period 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.
Offset/gain adjustment Supported