get_modbus_input_multi (iobus)
Features
This function reads the signal from the Modbus Slave unit.
Parameters
| Parameter Name | Data Type | Default Value | Description |
|---|---|---|---|
iobus | string | - | Modbus multi signal name (set in the TP) |
Return
| Value | Description |
|---|---|
list | List of values corresponding to the number of signals |
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
#Modbus multiple signal is registered as “multi”(cnt=2).
get_modbus_input("multi") # return = [10, 101]