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The Mitsubishi A68ADC MELSEC-A module is an analog-to-digital converter module with versatile input options. Its analog input option supports voltage ranges from -10 to 0 to +10 VDC and current ranges from +4 to +20 mADC. Its digital output option provides 16-bit, signed binary data ranging from -2048 to +2047. With a maximum resolution of 5 millivolts for voltage and 20 microamps for current, it ensures precise measurements. The A68ADC module supports 8 analog input channels and utilizes a photocoupler insulation method between the PLC power and output terminals. It occupies 4 I/O stations (32 points).
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| Manufacturer | Mitsubishi |
|---|---|
| Product Line | A Series |
| Part Number | A68ADC |
| Weight | 2.25 lbs (1.02 kg) |
| Model Type | Analog-to-Digital Converter Module |
| Analog Input | Voltage: -10 to 0 to +10 VDC (input resistance: 30 kilohms); Current: +4 to +20 mADC (input resistance: 250 ohms) |
| Digital Output | 16-bit, signed binary (11-bit data part); -2048 to +2047 |
| I/O Characteristics | Analog Inputs: +10V, +5V or +20 mA, 0V or +4 mA, -5V or -12 mA, -10V; Digital Outputs: +2000, +1000, 0, -1000, -2000 |
| Maximum Resolution | Voltage: 5 millivolts (1/2000); Current: 20 microamps (1/1000) |
| Maximum Conversion Speed | Max. 2.5 ms/channel |
| Absolute Maximum Input | Voltage: +/-15V, Current: +/- 30mA |
| Number of Analog Inputs | 8 Channels/Unit |
| Insulation Method | Photocoupler |
| Occupied I/O Stations | 4 stations (32 points) |
| Connection Terminal | 47-point terminal block |
| 24VDC Internal Current Consumption | 0.3A |
| Outside Dimensions (HxWxD) | 170 x 100 x 80 mm |
The Mitsubishi A68ADC MELSEC-A series module is an analog-to-digital converter module designed to facilitate precise data conversion in industrial applications. This module supports versatile analog input options. The A68ADC module can support voltage inputs, and it can handle an input voltage range from -10 to 0 to +10 VDC, with an input resistance rating of 30 kilohms. For current inputs, it accommodates a current range of +4 to +20 mADC, with an input resistance rating of 250 ohms. The digital output option of the A68ADC module is a 16-bit, signed binary output option with an 11-bit data part that enables a wide range of values from -2048 to +2047. The A68ADC module boasts impressive resolution capabilities, with a maximum resolution rating of 5 millivolts (1/2000) for voltage inputs and 20 microamps (1/1000) for current inputs. Additionally, it achieves fast data conversion speeds, with a maximum speed of 2.5 ms per channel. The A68ADC offers robust protection features with absolute maximum input limits of +/-15V for voltage inputs and +/- 30mA for current inputs. It houses 8 analog input channels and uses photocoupler insulation between the output terminals and the PLC power for reliable operation in diverse environments. This converter module occupies 4 I/O stations (32 points) and features a 47-point terminal block for convenient connections. Its internal current consumption rating at 24 VDC is 0.3A, ensuring efficient power usage. With dimensions of 170 x 100 x 80 mm and a weight of 1.01 kg, the A68ADC analog-to-digital converter module is compact and lightweight, allowing for easy integration and installation.