User Manual Q&AAnswer
Oct 17, 2025 - 02:17 PM
To configure the output characteristics of the VC-4DA Analogue Output Module and set different output modes for the channels, follow these steps based on the information provided in the user manual:
1. **Channel Characteristics Adjustment:**
- The output channel characteristics of the VC-4DA are based on the linear relationship between the channel analogue output quantity (A) and the channel digital quantity (D).
- Each channel can be defined by two points: P0 (A0, D0) and P1 (A1, D1), where D0 represents the channel output digital quantity when the analogue output is A0, and D1 represents the channel output digital quantity when the analogue output is A1.
- By adjusting the values of (A0, D0) and (A1, D1), you can change the characteristics of each channel. The factory default settings are (A0, D0) as the 0 value of the output analog quantity and (A1, D1) as the maximum value of the output analog quantity.
2. **Setting Output Modes:**
- Different modes can be set for each channel, and the default corresponding channel characteristics for each mode are provided in the manual.
- For example, Mode 1 has D0=0 and D1=10000, where input 10V corresponds to input digital 10000, output 0V corresponds to input digital 0, and output -10V corresponds to input digital -10000.
- Modes 2 and 3 have their own default settings as well, with corresponding input and output values.
3. **Programming Example:**
- To configure specific output values for each channel, you need to create a new project, configure the hardware, and set the parameters for each channel according to your requirements.
- For example, if you want the 1st channel to be turned off, the 2nd channel to output a voltage signal (-10V to 10V), the 3rd channel to output a current signal (0 to 20mA), and the 4th channel to output a current signal (4 to 20mA), you would set the output values with data registers D1, D2, and D3.
By following the instructions provided in the manual, you can adjust the channel characteristics and set the output modes of the VC-4DA Analogue Output Module according to your specific application requirements.
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