Device properties are stored in the system and read by the driver when it loads, and then the device is programmed according to these loaded values. The properties are protected during read and write access times, and some of them are pre-defined by the configuration dialog box. Different device's functions are influenced by different properties. These properties are represented by an ID code for an application that calls Advantech API functions. An application can use a default value set by the configuration dialog box, or call Advantech API functions: DRV_DeviceGetProperty and DRV_DeviceSetProperty, to modify individual properties in running time.
PCM-3753I supports the following properties:
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Property |
Description |
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gets the board ID of the device. |
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gets the base address of the currently installed PCM-3753I |
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gets the IRQ of the currently installed PCM-3753I |
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gets bus number of the currently installed PCM-3753I. |
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gets the slot number of the currently installed PCM-3753I. |
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gets the digital input channel count of the currently installed PCM-3753I. |
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gets the digital output channel count of the currently installed PCM-3753I. |
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gets the digital input port count of the currently installed PCM-3753I. |
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gets the digital output port count of the currently installed PCM-3753I. |
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gets/sets the DIO ports' direction of the installed PCM-3753I. |
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gets/sets the interrupt trigger source each group of the installed PCM-3753I. |
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gets/sets the DI interrupt trigger mode (on falling edge or rising edge) of the currently installed PCM-3753I. |
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gets/sets the DI interrupt trigger mode (on falling edge or rising edge) of the currently installed PCM-3753I. |
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gets/sets which DI channel can trigger interrupt when it's status change. |
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gets/sets which DI channel can trigger interrupt when it value match the preset value. |
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gets/sets the preset value of the pattern match channel. |