get_digital_inputs(bit_list)
Features
This function reads the signals from multiple digital contact points of the controller. The digital signals of the contact points defined in bit_list are input at one.
Parameters
| Parameter Name | Data Type | Default Value | Description |
|---|---|---|---|
index | list (int) | - | List of contact points to read A number 1-16 which means the I/O contact number mounted on the controller. |
Return
| Value | Description |
|---|---|
int (>=0) | Multiple contacts to be read at once (the value of the combination of the bit list where bit_start =LSB and bit_end=MSB) |
Negative number | Failed |
Exception
| Exception | Description |
|---|---|
DR_Error (DR_ERROR_TYPE) | Parameter data type error occurred |
DR_Error (DR_ERROR_VALUE) | Parameter value is invalid |
DR_Error (DR_ERROR_RUNTIME) | C extension module error occurred |
DR_Error (DR_ERROR_STOP) | Program terminated forcefully |
Example
PY
# input contacts: No. 1=OFF, No. 2=OFF, No. 3=ON, and No. 4=ON
res = get_digital_inputs(bit_list=[1,2,3,4])
#res expected value = 0b1100 (binary number), 12 (decimal number), or 0x0C (hexadecimal number)
# input contacts: No. 5=ON, No. 6=ON, No. 7=OFF, and No. 8=ON
res = get_digital_inputs([5,6,7,8])
#res expected value = 0b1011 (binary number), 11 (decimal number), or 0x0B (hexadecimal number)