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Arcom Embedded Linux Technical Manual Developing software for AEL

AIM104-RELAY8/IN8

The library libaim104 provides several functions on AIM104-RELAY8/IN8:

int aim104_relay8_enable_relays(int fd, int enable);

int aim104_relay8_set_all(int fd, unsigned char set);

int aim104_relay8_set_masked(int fd, unsigned char mask,

unsigned char set);

int aim104_relay8_inputs(int fd);

int aim104_relay8_relay_status(int fd);

The libaim104 functions on AIM104-RELAY8/IN8 are explained below:

Function Explanation

aim104_relay8_enable_relays

Enables all relays if the enable parameter is true.

aim104_relay8_set_all

Sets all 8 relays to the state given by set.

aim104_relay8_set_masked

Sets all relays selected by the mask parameter to the

state given by the set parameter. A relay is selected if

there is a 1 in the corresponding bit position within

mask.

aim104_relay8_inputs

Returns the state of the 8 digital I/O lines as a bit

mask.

aim104_relay8_relay_status

Returns the current state of the 8 relays as a bit

mask.

AIM104-IN16

The function provided by the library libaim104 on AIM104-IN16 is:

int aim104_in16_inputs(int fd, int channel);

The function aim104_in16_inputs returns the state of digital I/O lines 0-7 as a bit mask

if channel is 0, or lines 8-15 if channel is 1.

AIM104-OUT16

The functions provided by the library libaim104 on AIM104-OUT16 are:

int aim104_out16_enable_outputs(int fd, int enable);

int aim104_out16_set_all(int fd, int channel,

unsigned char set);

int aim104_out16_set_masked(int fd, int channel,

unsigned char mask,

unsigned char set);

int aim104_out16_output_status(int fd, int channel);

When the parameter channel is zero, it selects I/O lines 0-7. When channel is one, it

selects I/O lines 8-15.

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Eurotech ZEUS Bedienungsanleitung Seite 50